Carroll County MD Information


Carroll County Subdivisions

Carroll County MD Data & Demographics (As of July 1, 2018)


Total Population 171,975
Population in Households 168,615
Population in Familes 146,530
Population in Group Qrtrs 3,360
Population Density1 384
Diversity Index2 23


Median Household Income $90,747
Average Household Income $107,792
Per Capita Income $39,139


Total Housing Units 64,494 (100%)
Owner Occupied HU 48,409 (75.1%)
Renter Occupied HU 13,100 (20.3%)
Vacant Housing Units 2,985 ( 4.6%)
Median Home Value $355,952
Average Home Value $400,592


Total Households 61,509
Average Household Size 2.74
Family Households 46,051
Average Family Size 3
  1. Population Density = Total Population per square mile.
  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 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.


2010-2017 2017-2022
Population 0.35% 0.44%
Households 0.34% 0.44%
Families 0.24% 0.36%
Median Household Income   2.52%
Per Capita Income   3.02%


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, 2018 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 Density # 10 63rd
Diversity Index # 23 8th
Median Household Income # 7 75th
Per Capita Income # 8 71st

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