Residential delivery area · Maryland

ZIP Code 21531: Friendsville, MD

ZIP code 21531 uses the postal name Friendsville, Maryland and lies entirely in Garrett County (Census 2020 ZIP-county file). About 2,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $63,750 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Friendsville; 98% is outside any Census place.

  • ACS2020-24
  • Census2020
  • FHFA2024
  • ZBP2023
  • IRS2022
2national area: Maryland, District of Columbia, North Carolina, South Carolina, Virginia and West Virginia
215sectional center: Baltimore, MD (SCF 212)
31delivery area within it
Town
Friendsville · its only residential ZIP
Census places
Friendsville
House district
MD-6 119th Congress
Time zone
Eastern
Land area
61.2 sq mi · 41 people per sq mi

Where is ZIP code 21531?

21531 centers on 39.643°, -79.428° and covers 61.2 square miles of land plus 1.0 of water. It borders 7 ZIP codes: 21520, 21541, 15411, 15459, 26525, 26764, 21550.

15411 · Addison15459 · Markleysburg21520 · Accident21541 · McHenry21550 · Oakland26525 · Bruceton Mills26764 · Terra Alta21531 · Friendsville (this ZIP)2153126525267642152015459154112154115411 · Addison15459 · Markleysburg21520 · Accident21541 · McHenry21550 · Oakland26525 · Bruceton Mills26764 · Terra Alta21531 · Friendsville (this ZIP)2153126525267642152015459154112154115411 · Addison15459 · Markleysburg21520 · Accident21541 · McHenry21550 · Oakland26525 · Bruceton Mills26764 · Terra Alta21531 · Friendsville (this ZIP)215312676421520154591541121541
Shaded by median household income, in national fifths (ACS 2020-2024); 21531 outlined. Census 2020 ZCTA boundaries. <$54.1k$98.1k+no figure

The map draws ZIP code areas only. For the streets inside 21531, open its center on OpenStreetMap.

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).

How does 21531 compare with the rest of Garrett County?

Rank of 21531 among the residential ZIP codes of its town, county and state (1 = the most; income and home value among ZIP codes of 1,000+ people living in households)
Measure21531In Garrett CountyIn MD
People (ACS 2020-2024)2,4875th of 12292nd of 477
Median household income$64knot rankednot ranked
Median home value$180k5th of 7310th of 320

21531's median household income is not ranked: its 90% margin of error (±$18,033) is more than a quarter of the figure ($63,750). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.

It is denser than 38% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).

How many people live in 21531?

The 2020 Census counted 2,176 people in 21531; the ACS, which samples households over 2020-2024, estimates 2,487. Between the 2010 and 2020 censuses its population fell 2.3% (its boundary stayed at least 90% the same).

People, ACS 2020-2024
2,487±404 (90% margin)
2020 Census count
2,176−2.3% since 2010 (2,227)
Households
1,101
Median age
48.8

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).

Who lives in 21531?

Of the 2,487 people the ACS estimates in 21531, 19.7% are under 18 and 22.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (95.5%).

  • Under 1819.7%
  • 18 to 6457.5%
  • 65 and older22.8%
Age of the people of 21531 (ACS 2020-2024, B01001)
  • White, not Hispanic95.5%
  • Other or two or more3.3%
  • Hispanic or Latino0.8%
  • Black, not Hispanic0.3%
  • Asian, not Hispanic0.1%
Race and Hispanic origin in 21531 (ACS 2020-2024, B03002); each person counted once

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.

What do households in 21531 earn?

Median household income is $63,750 (ACS 2020-2024). It is not measurably different from 2015-2019 ($51,458 in 2024 dollars): the change is within the surveys' margins of error.

Median household income
$63,750±$18,033
Income per person
$33,382
Below the poverty line
18.7%
Unemployed (of the labor force)
5.8%
Adults 25+ with a bachelor's degree
16.8%
Adjusted gross income per tax return, 2022
$62,9911,020 returns; wages 70% of AGI (IRS)

Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).

What are homes worth in 21531?

Median home value (owners' estimate)
$180,300
Median gross rent
$575
Homes owned by their occupants
84.8%
Housing units
1,351
0 50 100 150 200 2003201020202024 0 50 100 150 200 2003201020202024 0 50 100 150 200 2003201020202024
Index = 100 in 2003, the first year FHFA reports for 21531; 2024: 211.4. Annual, not seasonally adjusted; FHFA calls its ZIP-level indexes developmental. FHFA's series for 21531 stops in 2024: it publishes no ZIP index for a year with too few repeat sales.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.

What businesses are in 21531?

47 business establishments had a location in this ZIP code in 2023, 5 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).

  • Retail trade9
  • Construction6
  • Other services (except public administration)5
  • Agriculture, forestry, fishing and hunting4
  • Manufacturing4
  • Real estate and rental and leasing3

Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).

Which ZIP codes are next to 21531?

ZIP codes that share a boundary with 21531, then the nearest by center
ZIPTownPeopleHousehold incomeDistance
21520Accident1,918$60k6.4 mi
21541McHenry1,335$83k7.5 mi
15411Addison, PA695$68k8.5 mi
15459Markleysburg, PA1,861$71k8.7 mi
26525Bruceton Mills, WV8,630$82k10.5 mi
26764Terra Alta, WV4,175$61k15.4 mi
21550Oakland13,691$65k17.5 mi
26519Albright, WV2,363$54k11.8 mi (near)
15440Gibbon Glade, PA297$66k13.2 mi (near)
15424Confluence, PA2,011$56k13.3 mi (near)

Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.