Carroll County MD Information


Carroll County Subdivisions

Carroll County MD Data & Demographics (As of July 1, 2017)


Total Population 171,276
Daytime Population: Workers 60,491
Daytime Population: Residents 76,746
Total Daytime Population (TDP) 137,237
Ratio TDP/Total Population1 0.80
Population in Households 167,929
Population in Familes 145,403
Population in Group Qrtrs 3,347
Population Density2 383
Diversity Index3 22


Median Household Income $87,624
Average Household Income $103,816
Per Capita Income $37,644


Total Housing Units 64,122 (100%)
Owner Occupied HU 49,278 (76.9%)
Renter Occupied HU 11,860 (18.5%)
Vacant Housing Units 2,984 ( 4.7%)
Median Home Value $346,880
Average Home Value $384,157


Total Households 61,138
Average Household Size 2.75
Family Households 45,865
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 0.34% 0.38%
Households 0.31% 0.37%
Families 0.21% 0.3%
Median Household Income   1.67%
Per Capita Income   2.21%


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, 2017 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 # 9 67th

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