US ZIP Code Map

ZIP code

21771

Mount Airy, MD

STANDARD

21771 covers Mount Airy in Frederick County, with 32,827 people in the ACS estimate.

Map of 21771, Mount Airy

ZIP code map

ACS population

32,827

Median household income

$154,844

Median home value

$532,200

About ZIP code 21771

Type

STANDARD

City

Mount Airy

County

Frederick County

Timezone

America/New_York

Area codes

227, 240, 301, 410, 443, 667

Land area

89.5 sq mi

Water area

0.18 sq mi

Households

11,401

Median gross rent

$2,117

More enterprise fields

Timezone
America/New_York
Area Codes
227, 240, 301, 410, 443, 667
World Region
NA
Country
US
Housing Count
10,942
Irs Estimated Households
15,440
Population Count
30,697
Irs Estimated Population
30,430

People in 21771

Race

  • White26,261
  • Black or African American711
  • American Indian or Alaska Native91
  • Asian579
  • Native Hawaiian and Pacific Islander8
  • Other race738
  • Two or more races2,309

Hispanic or Latino (any race): 1,994

Age

  • Under 103,454
  • 10 to 194,326
  • 20 to 293,061
  • 30 to 393,451
  • 40 to 493,724
  • 50 to 595,518
  • 60 to 693,939
  • 70 to 792,156
  • 80 and older1,068

Income and housing in 21771

Poverty rate

3.5%

Median earnings

$70,011

Median household income

$154,844

Median home value

$532,200

Median gross rent

$2,117

Education

  • High school graduate95.2%
  • Bachelor's degree46.1%
  • Graduate degree20.5%

Places covering 21771

Cities and places

54.3% of this ZIP is outside city limits (a real overlap row, not missing data).

Population history for 21771

IRS populationACS population
35,45317,727020052023

Hover a year for IRS and ACS values.

ZIP codes near 21771

  1. 21765Lisbon5.1 miPop 193 · Income —
  2. 21770Monrovia5.5 miPop 7,815 · Income $184,464
  3. 21797Woodbine5.5 miPop 8,772 · Income $185,435
  4. 20872Damascus6.7 miPop 13,138 · Income $132,804
  5. 21774New Market7.0 miPop 16,515 · Income $171,875
  6. 21723Cooksville8.5 miPop 587 · Income $250,001
  7. 20882Gaithersburg9.0 miPop 13,661 · Income $186,964
  8. 21754Ijamsville9.0 miPop 7,439 · Income $179,797
  9. 21762Libertytown9.3 miPop 176 · Income —
  10. 21738Glenwood9.3 miPop 3,668 · Income $230,429
  11. 21784Sykesville9.6 miPop 37,813 · Income $141,228
  12. 21792Unionville9.9 miPop — · Income —

ZIP code 21771 FAQ

What city is ZIP code 21771 in?
21771 is in Mount Airy, MD.
What county is 21771 in?
21771 is in Frederick County.
What is the median household income in 21771?
The median household income in 21771 is $154,844.
Which ZIP codes are near 21771?
Use the radius tool on this page to list ZIP codes within a chosen distance of 21771.