ZIP code · Elkridge · Maryland · United States
ZIP code 21075 — Elkridge
ZIP code 21075 serves Elkridge, Maryland.
- Postal code
- 21075Single source Value from one source, not cross-checked.
- City
- Elkridge
- County
- Howard FIPS 24027
- State
- Maryland
- Country
- United States
- Coordinates
- 39.2058, -76.7531 — precision precise (locality)
View on OpenStreetMap - Population
- 37,146 (ZCTA, ACS 5-year)
- Population density
- 2,667 / sq mi
- Land area
- 13.9 sq mi (36.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $133,321
- Per-capita income
- $53,091
- Median age
- 33.9
- Households
- 12,956
- Housing units
- 13,191
- Median home value
- $439,400
- Median gross rent
- $2,108 / month
- Congressional district
- MD-3 (119th Congress)
- USDA hardiness zone
- 7b (5 to 10 °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 21075 with another ZIP · ZIPs within 25 miles · distance from 21075
Map of ZIP code 21075
Climate — monthly normals
Warmest month Jul (avg high 89°F), coldest Jan (avg low 25°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 43 | 46 | 55 | 67 | 76 | 84 | 89 | 87 | 80 | 68 | 57 | 48 |
| Avg low °F | 25 | 27 | 34 | 44 | 53 | 63 | 68 | 66 | 59 | 47 | 37 | 30 |
| Precip in | 3.1 | 2.9 | 4.0 | 3.4 | 3.9 | 4.0 | 4.5 | 4.1 | 4.4 | 3.9 | 3.1 | 3.7 |
NOAA 1991–2020 climate normals from the nearest station: BALTIMORE WASH INTL AP (4.6 mi) · NOAA NCEI
Places in ZIP 21075
- 9 schools
- 1 colleges & universities
- 4 hospitals & clinics
- 2 doctors & dentists
- 1 pharmacies
- 8 supermarkets
- 48 restaurants & cafés
- 2 bars & pubs
- 9 parks
- 20 playgrounds
- 4 gyms & sports centres
- 1 libraries
- 3 post offices
- 22 places of worship
- 7 banks
- 10 gas stations
- 4 EV charging stations
- 1 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