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Mount Airy, MD 21771 ZIP Code Profile

Photos of the local Mount Airy, MD area

ZIP Code 21771: Basic Data & USPS Preferred City Name

Preferred Name, USPS

Mount Airy, MD 21771

ZIP Code Type: STANDARD
County: Frederick County
Centroid: Latitude 39.388, Longitude -77.148
Time Zone: Eastern Time Zone (UTC -5 hours)
Observes DST: Yes

ZIP Code 21771 has segments in 4 Counties / Independent Cities (Carroll, Frederick, Howard, Montgomery).

Businesses Addresses: 743
PO Box Addresses: 341
Residential Addresses: 10,620

Multi-Family Addresses: 105
Single Family Addresses: 10,515

The ZIP Code maps and database are updated 4 times per year.
Database updated: August 1, 2018, Maps updated: August 1, 2018.

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21771 2018 Demographic Data
Growth Rates for 21771 (Historical & 5-Year Forecast)
Peer Comparisons (Rank and Percentile)

Neighborhoods Demographics (Home Values, Household Income, etc.)
Maryland Research Tools (Easy Tools & Current Data)
Maryland Data Comparison Tool - 2018 Demographics

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Mount Airy, MD 21771 Data & Demographics (As of July 1, 2018)

POPULATION
Total Population	30,237
Population in Households	30,062
Population in Familes	27,251
Population in Group Qrtrs	175
Population Density²	356
Diversity Index³	25

INCOME
Median Household Income	$110,281
Average Household Income	$134,674
Per Capita Income	$45,058

HOUSING
Total Housing Units	10,440 (100%)
Owner Occupied HU	9,048 (86.7%)
Renter Occupied HU	1,021 ( 9.8%)
Vacant Housing Units	371 ( 3.6%)
Median Home Value	$431,958
Average Home Value	$469,339

HOUSEHOLDS
Total Households	10,069
Average Household Size	2.99
Family Households	8,228
Average Family Size	3

NOTES

Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
Population Density = Total Population per square mile.
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.

GROWTH RATE / YEAR	2010-2018	2018-2023
Population	0.48%	0.66%
Households	0.48%	0.66%
Families	0.38%	0.59%
Median Household Income		1.49%
Per Capita Income		2.61%

Mount Airy, MD 21771 - Peer Comparisons by Rank and Percentile

The table below compares 21771 to the other 448 ZIP Codes 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	# 80	82nd
Population Density	# 235	48th
Diversity Index	# 334	25th
Median Household Income	# 91	80th
Per Capita Income	# 131	71st

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

Mount Airy, MD 21771 ZIP Code Profile

ZIP Code 21771: Basic Data & USPS Preferred City Name

Research a Maryland Address and get...

Mount Airy, MD 21771 Data & Demographics (As of July 1, 2018)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Mount Airy, MD 21771 - Peer Comparisons by Rank and Percentile

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Maryland Census Data Comparison Tool

Frederick County

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