Carroll County MD Information


Carroll County Subdivisions

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  1. Carroll County 2019 Demographic Data
  2. Growth Rates forCarroll County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Maryland Research Tools (Easy Tools & Current Data)
  3. Maryland Data Comparison Tool - 2019 Demographics

Carroll County MD Data & Demographics (As of July 1, 2019)


Total Population 172,218
Population in Households 168,858
Population in Familes 146,252
Population in Group Qrtrs 3,360
Population Density 385
Diversity Index1 24


Median Household Income $95,323
Average Household Income $119,216
Per Capita Income $43,065
Wealth Index3 168


Total Housing Units 64,757 (100%)
Owner Occupied HU 48,310 (74.6%)
Renter Occupied HU 13,450 (20.8%)
Vacant Housing Units 2,997 ( 4.6%)
Median Home Value $347,730
Housing Affordability Index2 130


Total Households 61,760
Average Household Size 2.73
Family Households 46,230
Average Family Size 3
  1. 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.
  2. 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.
  3. 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.


2010-2019 2019-2024
Population 0.32% 0.31%
Households 0.35% 0.33%
Families 0.25% 0.25%
Median Household Income   1.48%
Per Capita Income   2.07%


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, 2019 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 # 6 79th

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

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Maryland Census Data Comparison Tool

Compare Maryland July 1, 2019 Data
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