Interpretation of Demographics Data
Demographic Data Report for Maryland by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
United States
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 48.5 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 162,458,898.
- Rank within US : N/A
Maryland
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 49.2 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 3,050,668.
- Rank within US : This county is ranked 22 of 52
Baltimore City
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 44.1 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 252,840.
- Rank within US : This county is ranked 2832 of 3143
Wicomico County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 45.8 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 48,017.
- Rank within US : This county is ranked 2688 of 3143
St. Marys County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 46.0 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 52,901.
- Rank within US : This county is ranked 2666 of 3143
Somerset County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 47.6 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 11,809.
- Rank within US : This county is ranked 2472 of 3143
Prince Georges County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 48.0 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 461,039.
- Rank within US : This county is ranked 2419 of 3143
Charles County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 48.2 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 82,158.
- Rank within US : This county is ranked 2389 of 3143
Frederick County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 48.5 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 139,173.
- Rank within US : This county is ranked 2339 of 3143
Anne Arundel County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 48.7 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 291,541.
- Rank within US : This county is ranked 2309 of 3143
Baltimore County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 49.6 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 421,820.
- Rank within US : This county is ranked 2109 of 3143
Howard County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 49.6 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 166,863.
- Rank within US : This county is ranked 2109 of 3143
Caroline County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 49.9 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 16,784.
- Rank within US : This county is ranked 2056 of 3143
Montgomery County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 50.3 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 536,509.
- Rank within US : This county is ranked 1962 of 3143
Cecil County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 50.6 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 53,162.
- Rank within US : This county is ranked 1884 of 3143
Washington County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 50.7 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 79,010.
- Rank within US : This county is ranked 1858 of 3143
Harford County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 50.8 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 133,923.
- Rank within US : This county is ranked 1836 of 3143
Calvert County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 51.0 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 48,086.
- Rank within US : This county is ranked 1793 of 3143
Carroll County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 51.6 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 90,455.
- Rank within US : This county is ranked 1641 of 3143
Allegany County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 51.9 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 35,041.
- Rank within US : This county is ranked 1570 of 3143
Dorchester County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 54.6 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 17,873.
- Rank within US : This county is ranked 926 of 3143
Queen Annes County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 55.1 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 28,531.
- Rank within US : This county is ranked 836 of 3143
Kent County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 56.9 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 11,006.
- Rank within US : This county is ranked 578 of 3143
Garrett County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 57.9 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 16,563.
- Rank within US : This county is ranked 459 of 3143
Talbot County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 60.2 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 22,815.
- Rank within US : This county is ranked 252 of 3143
Worcester County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 61.0 percent.
- People (Age 40 And Over) : The number of people (age 40 and over) is 32,749.
- Rank within US : This county is ranked 217 of 3143
Notes:
Created by statecancerprofiles.cancer.gov on 03/22/2026 7:14 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 40 and over, see the dictionary.
Data for United States does not include Puerto Rico.