District 12 MD Demographic Data and Boundary Map


District 12, MD

The District 12 is a County Subdivision of Baltimore County. The subdivision has a Z1 Census Class Code which indicates that the District 12 is a nonfunctioning county subdivision.

Also See: Baltimore County Data | Cities in Baltimore County | County Subdivisions in Baltimore County

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  1. District 12 2021 Demographic Data
  2. Growth Rates for District 12 (Historical & 5-Year Forecast)
  3. Neighborhoods Demographics (Home Values, Household Income, etc.)
  4. Maryland Research Tools (Easy Tools & Current Data)
  5. Maryland Data Comparison Tool - 2021 Demographics

District 12 Boundary Map


District 12 Data & Demographics (As of July 1, 2021)


Total Population 52,721 (100%)
Population in Households 52,316 (99.2%)
Population in Families 40,827 (77.4%)
Population in Group Quarters1 405 ( 0.8%)
Population Density 6,622
Diversity Index2 53


Median Household Income $54,192
Average Household Income $66,436
% of Income for Mortgage4 14%
Per Capita Income $25,733
Wealth Index5 57


Total HU (Housing Units) 22,478 (100%)
Owner Occupied HU 14,087 (62.7%)
Renter Occupied HU 6,323 (28.1%)
Vacant Housing Units 2,068 ( 9.2%)
Median Home Value $174,484
Average Home Value $222,826
Housing Affordability Index3 157


Total Households 20,410
Average Household Size 2.56
Family Households 13,060
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2020 2020-2025
Population -0.12% 0.02%
Households -0.15% 0.0%
Families -0.31% -0.12%
Median Household Income   0.9%
Per Capita Income   1.71%
Owner Occupied HU   0.49%

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Maryland Census Data Comparison Tool

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More Tools and Resources:

  1. For information about schools and school attendance zones, use the HTL Address Tool
  2. Our new HTL Neighborhood Explorer provides lots of detail about any neighborhood.
  3. The new 2-Minute Introduction and Concise Guide to Big Data which will help you make the most effective use of HomeTownLocator Tools.
  4. See the References & Data Sources page for more information about methodology and sources of data.