Mount Airy, MD Profile: Facts & Data


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Mount Airy, Maryland - Basic Facts

The Town of Mount Airy had a population of 9,766 as of July 1, 2021.

The primary coordinate point for Mount Airy is located at latitude 39.3762 and longitude -77.1547 in Carroll County. The formal boundaries for the Town of Mount Airy encompass a land area of 4.12 sq. miles and a water area of 0.01 sq. miles. Carroll County is in the Eastern time zone (GMT -5). The elevation is 774 feet.

The Town of Mount Airy has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Town of Mount Airy is located within District 13, Mount Airy, a minor civil division (MCD) of Carroll County.

Alternate Unofficial Names for Mount Airy: Mountairy, Parrs Spring Ridge.

Jump to... (On This Page!)
  1. Mount Airy 2021 Demographic Data
  2. Growth Rates for Mount Airy (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 - 2021 Demographics

Mount Airy, MD Data & Demographics (As of July 1, 2021)


Total Population 9,766 (100%)
Population in Households 9,646 (98.8%)
Population in Families 8,499 (87.0%)
Population in Group Quarters1 120 ( 1.2%)
Population Density 2,371
Diversity Index2 32


Median Household Income $118,727
Average Household Income $141,392
% of Income for Mortgage4 14%
Per Capita Income $48,606
Wealth Index5 193


Total HU (Housing Units) 3,407 (100%)
Owner Occupied HU 2,870 (84.2%)
Renter Occupied HU 405 (11.9%)
Vacant Housing Units 133 ( 3.9%)
Median Home Value $394,931
Average Home Value $417,163
Housing Affordability Index3 173


Total Households 3,274
Average Household Size 2.95
Family Households 2,510
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  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 races 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.
  3. 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.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. 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.


2010-2021 2021-2026
Population 0.45% 0.45%
Households 0.47% 0.47%
Families 0.2% 0.39%
Median Household Income   0.85%
Per Capita Income   1.66%
Owner Occupied HU   0.64%

Mount Airy, MD - Peer Comparisons by Rank and Percentile

The table below compares Mount Airy to the other 518 incorporated cities, towns and CDPs in Maryland by rank and percentile using July 1, 2021 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 # 132 75th
Population Density # 162 69th
Median Household Income # 77 85th
Housing Affordability Index # 382 74th
Per Capita Income # 129 75th
Diversity Index # 324 37th

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

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