Carroll County MD Information


Carroll County Subdivisions

Carroll County MD Data & Demographics (As of July 1, 2016)


Total Population 170,091
Population in Households 166,693
Population in Familes 144,439
Population in Group Qrtrs 3,398
Population Density1 380
Diversity Index2 21


Total Households 60,925
Average Household Size 2.74
Family Households 45,728
Average Family Size 3


Total Housing Units 64,002 (100%)
Owner Occupied HU 48,963 (76.5%)
Renter Occupied HU 11,962 (18.7%)
Vacant Housing Units 3,077 ( 4.8%)
Median Home Value $338,507
Average Home Value $381,552


Median Household Income $87,149
Average Household Income $101,784
Per Capita Income $36,879
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.28% 0.34%
Households 0.3% 0.37%
Families 0.2% 0.29%
Median Household Income   2.2%
Per Capita Income   1.72%
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.


Carroll County MD - Peer Comparisons by Rank and Percentile

The table below compares Carroll County to the other 24 counties / independent cities and county equivalents in Maryland by rank and percentile using July 1, 2016 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 # 9 67th
Population Density1 # 9 67th
Diversity Index2 # 23 8th
Median Household Income # 6 79th
Per Capita Income # 8 71st

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