ZIP code · Oakland · Maryland · United States
ZIP code 21550 — Oakland
ZIP code 21550 serves Oakland, Maryland.
- Postal code
- 21550Single source Value from one source, not cross-checked.
- City
- Oakland
- County
- Garrett FIPS 24023
- State
- Maryland
- Country
- United States
- Coordinates
- 39.4339, -79.3167 — precision precise (locality)
View on OpenStreetMap - Population
- 13,469 (ZCTA, ACS 5-year)
- Population density
- 66 / sq mi
- Land area
- 205.5 sq mi (532.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $65,302
- Per-capita income
- $41,945
- Median age
- 48.5
- Households
- 5,926
- Housing units
- 8,395
- Median home value
- $210,300
- Median gross rent
- $724 / month
- Congressional district
- MD-6 (119th Congress)
- USDA hardiness zone
- 6a (-10 to -5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
Tools: compare 21550 with another ZIP · ZIPs within 25 miles · distance from 21550
Map of ZIP code 21550
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Jan (avg low 18°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 40 | 49 | 61 | 70 | 77 | 81 | 80 | 74 | 63 | 52 | 42 |
| Avg low °F | 18 | 20 | 27 | 37 | 48 | 56 | 60 | 58 | 51 | 40 | 30 | 24 |
| Precip in | 3.9 | 3.6 | 4.3 | 4.3 | 5.3 | 4.9 | 5.1 | 4.3 | 3.7 | 3.6 | 3.4 | 4.3 |
NOAA 1991–2020 climate normals from the nearest station: OAKLAND 1 SE (4.7 mi) · NOAA NCEI
Places in ZIP 21550
- 20 schools
- 1 hospitals & clinics
- 3 doctors & dentists
- 3 pharmacies
- 6 supermarkets
- 33 restaurants & cafés
- 4 bars & pubs
- 10 parks
- 12 playgrounds
- 2 gyms & sports centres
- 1 libraries
- 2 post offices
- 32 places of worship
- 13 banks
- 8 gas stations
- 1 EV charging stations
- 3 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page