ZIP code · Hagerstown · Maryland · United States
ZIP code 21742 — Hagerstown
ZIP code 21742 serves Hagerstown, Maryland.
- Postal code
- 21742Single source Value from one source, not cross-checked.
- City
- Hagerstown
- County
- Washington FIPS 24043
- State
- Maryland
- Country
- United States
- Coordinates
- 39.6573, -77.6921 — precision precise (locality)
View on OpenStreetMap - Population
- 35,114 (ZCTA, ACS 5-year)
- Population density
- 755 / sq mi
- Land area
- 46.5 sq mi (120.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $80,533
- Per-capita income
- $40,147
- Median age
- 41.3
- Households
- 13,315
- Housing units
- 14,099
- Median home value
- $280,100
- Median gross rent
- $1,267 / month
- Congressional district
- MD-6 (119th Congress)
- USDA hardiness zone
- 7a (0 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 21742 with another ZIP · ZIPs within 25 miles · distance from 21742
Map of ZIP code 21742
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 22°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 44 | 53 | 65 | 74 | 83 | 86 | 85 | 78 | 66 | 54 | 44 |
| Avg low °F | 22 | 25 | 32 | 41 | 53 | 62 | 66 | 65 | 56 | 45 | 34 | 27 |
| Precip in | 3.2 | 2.7 | 3.9 | 3.9 | 4.3 | 3.4 | 3.7 | 3.7 | 4.8 | 3.4 | 2.9 | 3.7 |
NOAA 1991–2020 climate normals from the nearest station: HAGERSTOWN 1 E (1.2 mi) · NOAA NCEI
Places in ZIP 21742
- 16 schools
- 2 colleges & universities
- 6 hospitals & clinics
- 2 doctors & dentists
- 5 pharmacies
- 3 supermarkets
- 25 restaurants & cafés
- 1 bars & pubs
- 7 parks
- 9 playgrounds
- 5 gyms & sports centres
- 1 libraries
- 2 post offices
- 17 places of worship
- 4 banks
- 9 gas stations
- 2 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