State Cancer Profiles

Interpretation of Demographics Data

Demographic Data Report for Missouri by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent

Missouri

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Value (Percent) : The value is 22.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,382,679.
• Rank within US : This county is ranked 19 of 52

United States

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Value (Percent) : The value is 22.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 73,517,834.
• Rank within US : N/A

Worth County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 418.
• Rank within US : This county is ranked 1650 of 3143

Mercer County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 854.
• Rank within US : This county is ranked 542 of 3143

Holt County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 882.
• Rank within US : This county is ranked 1978 of 3143

Knox County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 932.
• Rank within US : This county is ranked 473 of 3143

Putnam County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,049.
• Rank within US : This county is ranked 1220 of 3143

Atchison County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,083.
• Rank within US : This county is ranked 1936 of 3143

Schuyler County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 27.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,111.
• Rank within US : This county is ranked 152 of 3143

Reynolds County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 19.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,141.
• Rank within US : This county is ranked 2544 of 3143

Carter County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,286.
• Rank within US : This county is ranked 602 of 3143

Sullivan County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,309.
• Rank within US : This county is ranked 1356 of 3143

Scotland County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 29.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,399.
• Rank within US : This county is ranked 72 of 3143

Shelby County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,434.
• Rank within US : This county is ranked 690 of 3143

Hickory County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,488.
• Rank within US : This county is ranked 2848 of 3143

Dade County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,589.
• Rank within US : This county is ranked 1978 of 3143

Clark County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,595.
• Rank within US : This county is ranked 717 of 3143

Gentry County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 25.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,613.
• Rank within US : This county is ranked 280 of 3143

Shannon County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,627.
• Rank within US : This county is ranked 1174 of 3143

Ozark County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 19.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,687.
• Rank within US : This county is ranked 2544 of 3143

Chariton County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,718.
• Rank within US : This county is ranked 962 of 3143

Maries County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,737.
• Rank within US : This county is ranked 2055 of 3143

Carroll County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,842.
• Rank within US : This county is ranked 1525 of 3143

Monroe County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,916.
• Rank within US : This county is ranked 1525 of 3143

Iron County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,983.
• Rank within US : This county is ranked 1910 of 3143

Harrison County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,991.
• Rank within US : This county is ranked 602 of 3143

Oregon County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,008.
• Rank within US : This county is ranked 962 of 3143

St. Clair County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,038.
• Rank within US : This county is ranked 1775 of 3143

Caldwell County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,100.
• Rank within US : This county is ranked 847 of 3143

Daviess County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,101.
• Rank within US : This county is ranked 473 of 3143

Lewis County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,108.
• Rank within US : This county is ranked 1816 of 3143

Wayne County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 19.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,132.
• Rank within US : This county is ranked 2372 of 3143

DeKalb County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 19.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,152.
• Rank within US : This county is ranked 2323 of 3143

Howard County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,155.
• Rank within US : This county is ranked 1816 of 3143

Ralls County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,206.
• Rank within US : This county is ranked 1816 of 3143

Bollinger County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,296.
• Rank within US : This county is ranked 1613 of 3143

Montgomery County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,504.
• Rank within US : This county is ranked 1525 of 3143

Grundy County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 25.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,533.
• Rank within US : This county is ranked 269 of 3143

Ripley County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,585.
• Rank within US : This county is ranked 657 of 3143

Mississippi County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,688.
• Rank within US : This county is ranked 1220 of 3143

Barton County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,739.
• Rank within US : This county is ranked 889 of 3143

Linn County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,764.
• Rank within US : This county is ranked 926 of 3143

Douglas County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,768.
• Rank within US : This county is ranked 1006 of 3143

Madison County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,966.
• Rank within US : This county is ranked 926 of 3143

Gasconade County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,983.
• Rank within US : This county is ranked 2193 of 3143

Osage County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,043.
• Rank within US : This county is ranked 1174 of 3143

Livingston County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,107.
• Rank within US : This county is ranked 1650 of 3143

Dent County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,279.
• Rank within US : This county is ranked 1220 of 3143

Benton County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,486.
• Rank within US : This county is ranked 2848 of 3143

Macon County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,500.
• Rank within US : This county is ranked 1006 of 3143

Cedar County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,510.
• Rank within US : This county is ranked 690 of 3143

Nodaway County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,530.
• Rank within US : This county is ranked 2883 of 3143

Bates County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,689.
• Rank within US : This county is ranked 1133 of 3143

New Madrid County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,724.
• Rank within US : This county is ranked 778 of 3143

Cooper County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,750.
• Rank within US : This county is ranked 1356 of 3143

Moniteau County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 25.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,877.
• Rank within US : This county is ranked 340 of 3143

Pemiscot County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 26.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,909.
• Rank within US : This county is ranked 245 of 3143

Ste. Genevieve County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,973.
• Rank within US : This county is ranked 1735 of 3143

Pike County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,977.
• Rank within US : This county is ranked 1260 of 3143

Andrew County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,052.
• Rank within US : This county is ranked 1311 of 3143

Dallas County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,143.
• Rank within US : This county is ranked 809 of 3143

Perry County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,275.
• Rank within US : This county is ranked 1260 of 3143

Vernon County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,694.
• Rank within US : This county is ranked 748 of 3143

Adair County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 18.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,740.
• Rank within US : This county is ranked 2601 of 3143

Wright County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 25.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,900.
• Rank within US : This county is ranked 280 of 3143

Morgan County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,958.
• Rank within US : This county is ranked 1133 of 3143

Clinton County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,963.
• Rank within US : This county is ranked 962 of 3143

Henry County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,976.
• Rank within US : This county is ranked 1356 of 3143

Crawford County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,062.
• Rank within US : This county is ranked 1395 of 3143

Saline County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,102.
• Rank within US : This county is ranked 1478 of 3143

Ray County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,271.
• Rank within US : This county is ranked 1133 of 3143

Stone County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 16.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,360.
• Rank within US : This county is ranked 2918 of 3143

Randolph County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,392.
• Rank within US : This county is ranked 1441 of 3143

Washington County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,526.
• Rank within US : This county is ranked 847 of 3143

Texas County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,564.
• Rank within US : This county is ranked 1441 of 3143

Audrain County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,568.
• Rank within US : This county is ranked 1174 of 3143

Miller County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,869.
• Rank within US : This county is ranked 962 of 3143

McDonald County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 25.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 6,037.
• Rank within US : This county is ranked 321 of 3143

Stoddard County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 6,289.
• Rank within US : This county is ranked 1441 of 3143

Marion County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 6,834.
• Rank within US : This county is ranked 690 of 3143

Dunklin County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 26.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 7,151.
• Rank within US : This county is ranked 255 of 3143

Camden County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 7,489.
• Rank within US : This county is ranked 2858 of 3143

Polk County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 7,595.
• Rank within US : This county is ranked 889 of 3143

Lafayette County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 7,607.
• Rank within US : This county is ranked 1057 of 3143

Barry County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 7,996.
• Rank within US : This county is ranked 1133 of 3143

Warren County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 8,595.
• Rank within US : This county is ranked 1006 of 3143

Laclede County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 8,953.
• Rank within US : This county is ranked 514 of 3143

Scott County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 9,098.
• Rank within US : This county is ranked 690 of 3143

Callaway County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 20.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 9,258.
• Rank within US : This county is ranked 2021 of 3143

Phelps County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 9,537.
• Rank within US : This county is ranked 1869 of 3143

Howell County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 24.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 9,741.
• Rank within US : This county is ranked 657 of 3143

Butler County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 23.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 9,780.
• Rank within US : This county is ranked 926 of 3143

Lawrence County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 25.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 9,809.
• Rank within US : This county is ranked 340 of 3143

Pettis County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 25.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 10,887.
• Rank within US : This county is ranked 410 of 3143

Webster County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 27.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 11,134.
• Rank within US : This county is ranked 152 of 3143

Pulaski County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 11,784.
• Rank within US : This county is ranked 1525 of 3143

Taney County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 11,799.
• Rank within US : This county is ranked 1936 of 3143

Johnson County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 22.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 12,108.
• Rank within US : This county is ranked 1441 of 3143

St. Francois County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 14,011.
• Rank within US : This county is ranked 1936 of 3143

Newton County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 14,356.
• Rank within US : This county is ranked 717 of 3143

Lincoln County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 25.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 15,810.
• Rank within US : This county is ranked 410 of 3143

Cole County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 17,011.
• Rank within US : This county is ranked 1441 of 3143

Cape Girardeau County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 17,657.
• Rank within US : This county is ranked 1775 of 3143

Buchanan County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 18,644.
• Rank within US : This county is ranked 1356 of 3143

Christian County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 25.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 23,318.
• Rank within US : This county is ranked 410 of 3143

Franklin County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 23,693.
• Rank within US : This county is ranked 1311 of 3143

Platte County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 25,483.
• Rank within US : This county is ranked 1006 of 3143

Cass County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 25,988.
• Rank within US : This county is ranked 847 of 3143

Jasper County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 24.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 30,642.
• Rank within US : This county is ranked 514 of 3143

Boone County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 20.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 37,890.
• Rank within US : This county is ranked 2226 of 3143

Jefferson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 51,633.
• Rank within US : This county is ranked 1260 of 3143

St. Louis City

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 18.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 52,870.
• Rank within US : This county is ranked 2677 of 3143

Clay County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 60,745.
• Rank within US : This county is ranked 847 of 3143

Greene County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 20.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 63,125.
• Rank within US : This county is ranked 1978 of 3143

St. Charles County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 93,380.
• Rank within US : This county is ranked 1260 of 3143

Jackson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 23.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 167,759.
• Rank within US : This county is ranked 926 of 3143

St. Louis County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 22.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 218,904.
• Rank within US : This county is ranked 1478 of 3143

Notes:
Created by statecancerprofiles.cancer.gov on 06/06/2026 1:49 pm.

Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.

Source: Demographic data provided by the Census Bureau and the American Community Survey.

For more information about Population: Age under 18, see the dictionary.

Data for United States does not include Puerto Rico.