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zipcodes.pro — STATE/MD/COUNTY/GARRETT

Garrett County, MD ZIP codes

There are 12 ZIP codes in Garrett County, MD, in 12 towns, from 21520 to 21562. The largest are 21550 (Oakland), 21536 (Grantsville) and 21562 (Westernport). 1 more crosses into it from a neighbouring county: 21532.

The county seat is Oakland.

ZIP codes
12
Partly in it
1 more
Towns
12
County seat
Oakland
County FIPS
24023
Population
28,615
Median household income
$67,688
Land area
649 sq mi
Area codes
227, 240, 301

Garrett County ZIP codes by town

Oakland (county seat)
21550

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Garrett County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Garrett County.

Map of Garrett County ZIP codes

215202152121522215232153121536215382153921541215502156121562

The ZIP codes of Garrett County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Garrett County in numbers

About 28,615 people live in Garrett County, in 12,578 households, the 22nd most populous of Maryland's 24 counties. The median household income is $67,688 a year, 35% below the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $235,300 (44% below the Maryland median), and median gross rent is $765 a month. The median age is 48.3; 25.9% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 24 minutes.

Population28,615Garrett28,615
Households12,578Garrett12,578
Median age48.3Garrett48.3Maryland39.4US 38.9
Median household income$67,688Garrett$67,688Maryland$103,678US $80,734
Median home value$235,300Garrett$235,300Maryland$419,900US $332,700
Median gross rent$765Garrett$765Maryland$1,705US $1,413
Bachelor's degree or higher25.9%Garrett25.9%Maryland43.4%US 35.7%
Mean commute23.7 minGarrett23.7 minMaryland31.1 minUS 26.4 min
Population density44 / sq miGarrett44 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Garrett County

Largest towns in Garrett County
TownZIP codesPopulation
Swanton 1 2,412
Oakland 1 2,254
Westernport 1 1,588
Mc Henry 1 1,335
Grantsville 1 1,013
Lonaconing 1 889
Barton 1 663
Friendsville 1 416
Accident 1 351
Kitzmiller 1 264
Bloomington 1 150

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Garrett County.

Not sure you are in Garrett County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Garrett County, with figures

ZIP codes in Garrett County
ZIP City Type Population Median income Median home
21520 Accident , MD Standard 1,918 $59,852 $298,600
21521 Barton , MD Standard 1,400 $64,194 $107,500
21522 Bittinger , MD No street area — — —
21523 Bloomington , MD Standard 150 $59,063 $98,100
21531 Friendsville , MD Standard 2,487 $63,750 $180,300
21536 Grantsville , MD Standard 3,833 $64,205 $201,300
21538 Kitzmiller , MD Standard 678 $61,250 —
21539 Lonaconing , MD Standard 1,975 $57,708 $130,200
21541 Mc Henry , MD Standard 1,335 $82,955 $342,500
21550 Oakland , MD Standard 13,691 $64,921 $233,300
21561 Swanton , MD Standard 2,412 $73,858 $328,700
21562 Westernport , MD Standard 3,032 $47,500 $98,500

Cite this page

zipcodes.pro. “Garrett County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/md/county/garrett

Underlying data is public domain or openly licensed — sources, vintages and licences.