ZIP code · Annapolis · Maryland · United States
ZIP code 21409 — Annapolis
ZIP code 21409 serves Annapolis, Maryland.
- Postal code
- 21409Single source Value from one source, not cross-checked.
- City
- Annapolis
- County
- Anne Arundel FIPS 24003
- State
- Maryland
- Country
- United States
- Coordinates
- 39.0416, -76.4377 — precision precise (locality)
View on OpenStreetMap - Population
- 20,175 (ZCTA, ACS 5-year)
- Population density
- 1,441 / sq mi
- Land area
- 14 sq mi (36.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $146,667
- Per-capita income
- $69,358
- Median age
- 42.8
- Households
- 7,260
- Housing units
- 7,541
- Median home value
- $499,700
- Median gross rent
- $2,007 / month
- Congressional district
- MD-3 (119th Congress)
- USDA hardiness zone
- 8a (10 to 15 °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 21409 with another ZIP · ZIPs within 25 miles · distance from 21409
Map of ZIP code 21409
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 30°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 43 | 45 | 53 | 64 | 73 | 82 | 86 | 84 | 77 | 67 | 56 | 47 |
| Avg low °F | 30 | 32 | 38 | 47 | 57 | 68 | 72 | 71 | 65 | 52 | 42 | 34 |
| Precip in | 2.8 | 2.4 | 3.8 | 3.4 | 3.1 | 4.0 | 4.9 | 4.3 | 5.1 | 4.0 | 3.0 | 3.0 |
NOAA 1991–2020 climate normals from the nearest station: ANNAPOLIS NAF (4.3 mi) · NOAA NCEI
Places in ZIP 21409
- 12 schools
- 1 doctors & dentists
- 1 pharmacies
- 1 supermarkets
- 15 restaurants & cafés
- 9 parks
- 8 playgrounds
- 1 gyms & sports centres
- 1 libraries
- 8 places of worship
- 2 banks
- 5 gas stations
- 4 EV charging stations
- 5 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