State Cancer Profiles

Interpretation of Demographics Data

Demographic Data Report for Tennessee by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Value

Tennessee

• 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 1,558,006.
• Rank within US : This state is ranked 20 of 52

United States

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Value (Percent) : The value is 22.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 73,645,238.
• Rank within US : N/A

Montgomery County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 26.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 61,230.
• Rank within US : This county is ranked 204 of 3143

Williamson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 26.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 66,844.
• Rank within US : This county is ranked 251 of 3143

Bedford 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 13,087.
• Rank within US : This county is ranked 355 of 3143

Shelby County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 25.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 234,894.
• Rank within US : This county is ranked 355 of 3143

Lawrence 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 11,268.
• Rank within US : This county is ranked 443 of 3143

Macon County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 25.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 6,452.
• Rank within US : This county is ranked 468 of 3143

Rutherford County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 24.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 87,170.
• Rank within US : This county is ranked 507 of 3143

Gibson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 24.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 12,346.
• Rank within US : This county is ranked 594 of 3143

Coffee 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 14,325.
• Rank within US : This county is ranked 619 of 3143

Robertson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 24.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 17,910.
• Rank within US : This county is ranked 687 of 3143

Dyer 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 8,754.
• Rank within US : This county is ranked 750 of 3143

Hamblen 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 15,518.
• Rank within US : This county is ranked 750 of 3143

Tipton 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 14,632.
• Rank within US : This county is ranked 750 of 3143

Scott 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 5,152.
• Rank within US : This county is ranked 900 of 3143

Warren 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 9,755.
• Rank within US : This county is ranked 900 of 3143

Wilson 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 36,047.
• Rank within US : This county is ranked 900 of 3143

Crockett 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 3,261.
• Rank within US : This county is ranked 947 of 3143

Marshall 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 8,263.
• Rank within US : This county is ranked 947 of 3143

Sumner 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 46,778.
• Rank within US : This county is ranked 1001 of 3143

Maury 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 24,275.
• Rank within US : This county is ranked 1042 of 3143

Dickson 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 12,567.
• Rank within US : This county is ranked 1209 of 3143

Henderson 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 6,344.
• Rank within US : This county is ranked 1250 of 3143

Madison 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 22,249.
• Rank within US : This county is ranked 1340 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 1,925.
• Rank within US : This county is ranked 1340 of 3143

Smith 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 4,520.
• Rank within US : This county is ranked 1385 of 3143

Cannon 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 3,266.
• Rank within US : This county is ranked 1429 of 3143

Haywood 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 3,936.
• Rank within US : This county is ranked 1429 of 3143

Lincoln 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 7,922.
• Rank within US : This county is ranked 1469 of 3143

Rhea 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 7,364.
• Rank within US : This county is ranked 1518 of 3143

Lauderdale 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 5,481.
• Rank within US : This county is ranked 1567 of 3143

Obion 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 6,728.
• Rank within US : This county is ranked 1567 of 3143

Bradley County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 24,059.
• Rank within US : This county is ranked 1606 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 6,224.
• Rank within US : This county is ranked 1606 of 3143

DeKalb 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 4,496.
• Rank within US : This county is ranked 1606 of 3143

Chester 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 3,780.
• Rank within US : This county is ranked 1683 of 3143

Humphreys County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,131.
• Rank within US : This county is ranked 1683 of 3143

White County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 21.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 6,037.
• Rank within US : This county is ranked 1683 of 3143

Cheatham County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 8,971.
• Rank within US : This county is ranked 1725 of 3143

McNairy 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 5,595.
• Rank within US : This county is ranked 1725 of 3143

Stewart County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,995.
• Rank within US : This county is ranked 1725 of 3143

Union County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.6 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,342.
• Rank within US : This county is ranked 1725 of 3143

Anderson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 16,716.
• Rank within US : This county is ranked 1821 of 3143

Hancock 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 1,453.
• Rank within US : This county is ranked 1821 of 3143

Grundy 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 2,905.
• Rank within US : This county is ranked 1876 of 3143

Houston 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 1,769.
• Rank within US : This county is ranked 1876 of 3143

Lewis 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 2,727.
• Rank within US : This county is ranked 1876 of 3143

Hamilton 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 78,520.
• Rank within US : This county is ranked 1907 of 3143

McMinn 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 11,469.
• Rank within US : This county is ranked 1907 of 3143

Knox County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 21.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 102,675.
• Rank within US : This county is ranked 1936 of 3143

Overton 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 4,789.
• Rank within US : This county is ranked 1977 of 3143

Davidson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 20.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 148,110.
• Rank within US : This county is ranked 2008 of 3143

Hickman County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 20.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,273.
• Rank within US : This county is ranked 2008 of 3143

Putnam 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 17,040.
• Rank within US : This county is ranked 2008 of 3143

Sevier 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 20,658.
• Rank within US : This county is ranked 2008 of 3143

Van Buren 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 1,314.
• Rank within US : This county is ranked 2008 of 3143

Benton 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 3,314.
• Rank within US : This county is ranked 2044 of 3143

Giles County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 6,313.
• Rank within US : This county is ranked 2085 of 3143

Marion 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 6,007.
• Rank within US : This county is ranked 2085 of 3143

Monroe County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 9,720.
• Rank within US : This county is ranked 2085 of 3143

Cocke County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 7,486.
• Rank within US : This county is ranked 2151 of 3143

Fentress County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,877.
• Rank within US : This county is ranked 2151 of 3143

Campbell County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 20.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 8,076.
• Rank within US : This county is ranked 2187 of 3143

Decatur County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,346.
• Rank within US : This county is ranked 2187 of 3143

Meigs County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,670.
• Rank within US : This county is ranked 2187 of 3143

Henry 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 6,538.
• Rank within US : This county is ranked 2249 of 3143

Hardin County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 20.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 5,375.
• Rank within US : This county is ranked 2300 of 3143

Sequatchie County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 20.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,277.
• Rank within US : This county is ranked 2300 of 3143

Blount County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 19.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 27,470.
• Rank within US : This county is ranked 2329 of 3143

Grainger 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 4,732.
• Rank within US : This county is ranked 2359 of 3143

Clay County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 19.7 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,500.
• Rank within US : This county is ranked 2378 of 3143

Franklin 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 8,541.
• Rank within US : This county is ranked 2404 of 3143

Hardeman 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 4,982.
• Rank within US : This county is ranked 2404 of 3143

Moore County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 19.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,284.
• Rank within US : This county is ranked 2470 of 3143

Jefferson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 19.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 10,763.
• Rank within US : This county is ranked 2489 of 3143

Greene County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 19.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 13,605.
• Rank within US : This county is ranked 2514 of 3143

Hawkins County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 19.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 11,046.
• Rank within US : This county is ranked 2514 of 3143

Polk County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 19.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,393.
• Rank within US : This county is ranked 2514 of 3143

Sullivan County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 19.2 percent.
• People (Age Under 18) : The number of people (age under 18) is 30,629.
• Rank within US : This county is ranked 2514 of 3143

Loudon County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 19.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 10,892.
• Rank within US : This county is ranked 2537 of 3143

Morgan County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 19.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 4,039.
• Rank within US : This county is ranked 2537 of 3143

Weakley County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 19.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 6,291.
• Rank within US : This county is ranked 2537 of 3143

Claiborne 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 6,118.
• Rank within US : This county is ranked 2557 of 3143

Roane County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 18.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 10,221.
• Rank within US : This county is ranked 2608 of 3143

Washington County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 18.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 25,347.
• Rank within US : This county is ranked 2608 of 3143

Fayette County

• 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 7,805.
• Rank within US : This county is ranked 2702 of 3143

Jackson County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 18.3 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,171.
• Rank within US : This county is ranked 2702 of 3143

Unicoi County

• 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 3,245.
• Rank within US : This county is ranked 2702 of 3143

Carter County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 17.9 percent.
• People (Age Under 18) : The number of people (age under 18) is 10,082.
• Rank within US : This county is ranked 2778 of 3143

Pickett County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 17.4 percent.
• People (Age Under 18) : The number of people (age under 18) is 883.
• Rank within US : This county is ranked 2857 of 3143

Wayne 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 2,799.
• Rank within US : This county is ranked 2882 of 3143

Cumberland County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 16.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 10,486.
• Rank within US : This county is ranked 2927 of 3143

Johnson County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 16.8 percent.
• People (Age Under 18) : The number of people (age under 18) is 3,032.
• Rank within US : This county is ranked 2927 of 3143

Trousdale County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 16.5 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,942.
• Rank within US : This county is ranked 2951 of 3143

Bledsoe County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 16.0 percent.
• People (Age Under 18) : The number of people (age under 18) is 2,391.
• Rank within US : This county is ranked 2988 of 3143

Lake County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 15.1 percent.
• People (Age Under 18) : The number of people (age under 18) is 1,007.
• Rank within US : This county is ranked 3053 of 3143

Notes:
Created by statecancerprofiles.cancer.gov on 01/20/2026 5:44 pm.

Φ Rural-Urban Continuum Codes provided by the USDA.

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.