ZIP code · Swanton · Maryland · United States
ZIP code 21561 — Swanton
ZIP code 21561 serves Swanton, Maryland.
- Postal code
- 21561Single source Value from one source, not cross-checked.
- City
- Swanton
- County
- Garrett FIPS 24023
- State
- Maryland
- Country
- United States
- Coordinates
- 39.4764, -79.2402 — precision precise (locality)
View on OpenStreetMap - Population
- 2,662 (ZCTA, ACS 5-year)
- Population density
- 26 / sq mi
- Land area
- 101.8 sq mi (263.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $71,964
- Per-capita income
- $52,519
- Median age
- 56.2
- Households
- 1,180
- Housing units
- 2,471
- Median home value
- $288,800
- 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 21561 with another ZIP · ZIPs within 25 miles · distance from 21561
Map of ZIP code 21561
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Jan (avg low 20°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 36 | 39 | 48 | 61 | 69 | 77 | 81 | 80 | 73 | 62 | 50 | 40 |
| Avg low °F | 20 | 21 | 28 | 37 | 47 | 56 | 60 | 59 | 52 | 41 | 32 | 25 |
| Precip in | 3.0 | 2.6 | 3.3 | 3.7 | 4.6 | 4.6 | 4.1 | 3.5 | 3.8 | 2.9 | 2.4 | 2.9 |
NOAA 1991–2020 climate normals from the nearest station: SAVAGE RVR DAM (5.8 mi) · NOAA NCEI
Places in ZIP 21561
- 3 schools
- 3 parks
- 4 playgrounds
- 1 post offices
- 10 places of worship
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