ZIP Code 20774 – Upper Marlboro, MD
Upper Marlboro, Maryland · Prince George's County · Eastern time
| ZIP code | 20774 |
|---|---|
| City | Upper Marlboro |
| State | Maryland |
| County | Prince George's County |
| Population | 51,816 |
| Time zone | Eastern · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 34.88 sq mi |
| Center (lat, long) | 38.8763, -76.7696 |
Area codes in this area
These are the area codes that most often serve ZIP 20774 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 20774
ZIP code 20774 is assigned to Upper Marlboro, Maryland. It lies in Prince George's County. Its Census area covers about 34.88 square miles of land. The closest neighboring ZIP is 20721 (Bowie), about 2.8 miles away.
Every address in 20774 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources