Baltimore (city) County MD Information


Baltimore (city) County Subdivisions

Baltimore (city) County MD Data & Demographics (As of July 1, 2015)


Total Population 620,218
Population in Households 594,909
Population in Familes 416,501
Population in Group Qrtrs 25,309
Population Density1 7,662
Diversity Index2 56


Total Households 251,433
Average Household Size 2.37
Family Households 133,369
Average Family Size 3


Total Housing Units 301,471 (100%)
Owner Occupied HU 112,966 (37.5%)
Renter Occupied HU 138,467 (45.9%)
Vacant Housing Units 50,038 (16.6%)
Median Home Value $208,687
Average Home Value $252,405


Median Household Income $39,306
Average Household Income $56,463
Per Capita Income $23,599
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.02% 0.06%
Households 0.12% 0.09%
Families -0.1% -0.06%
Median Household Income   1.95%
Per Capita Income   2.37%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Baltimore (city) County MD - Peer Comparisons by Rank and Percentile

The table below compares Baltimore (city) County to the other 24 counties / independent cities and county equivalents in Maryland by rank and percentile using July 1, 2015 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 4 88th
Population Density1 # 1 100th
Diversity Index2 # 7 75th
Median Household Income # 23 8th
Per Capita Income # 20 21st

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.