ZIP code · Riverdale · Maryland · United States
ZIP code 20737 — Riverdale
ZIP code 20737 serves Riverdale, Maryland.
- Postal code
- 20737Single source Value from one source, not cross-checked.
- City
- Riverdale
- County
- Prince George's FIPS 24033
- State
- Maryland
- Country
- United States
- Coordinates
- 38.9601, -76.9147 — precision estimated (postal-area centroid)
View on OpenStreetMap - Population
- 24,987 (ZCTA, ACS 5-year)
- Population density
- 7,892 / sq mi
- Land area
- 3.2 sq mi (8.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $84,241
- Per-capita income
- $35,260
- Median age
- 32.1
- Households
- 6,979
- Housing units
- 7,218
- Median home value
- $370,300
- Median gross rent
- $1,619 / month
- Congressional district
- MD-4 (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 20737 with another ZIP · ZIPs within 25 miles · distance from 20737
Map of ZIP code 20737
Climate — monthly normals
Warmest month Jul (avg high 90°F), coldest Jan (avg low 28°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 45 | 48 | 56 | 68 | 77 | 85 | 90 | 88 | 82 | 70 | 58 | 49 |
| Avg low °F | 28 | 30 | 37 | 46 | 57 | 66 | 71 | 69 | 62 | 49 | 39 | 32 |
| Precip in | 3.0 | 2.8 | 4.0 | 3.4 | 4.3 | 4.6 | 4.6 | 3.7 | 4.1 | 4.2 | 3.2 | 3.7 |
NOAA 1991–2020 climate normals from the nearest station: NATL ARBORETUM DC (4.4 mi) · NOAA NCEI
Places in ZIP 20737
- 12 schools
- 3 doctors & dentists
- 3 pharmacies
- 4 supermarkets
- 24 restaurants & cafés
- 1 bars & pubs
- 16 parks
- 19 playgrounds
- 2 gyms & sports centres
- 3 post offices
- 10 places of worship
- 5 banks
- 4 gas stations
- 3 EV charging stations
- 4 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