ZIP code · Rising Sun · Maryland · United States
ZIP code 21911 — Rising Sun
ZIP code 21911 serves Rising Sun, Maryland.
- Postal code
- 21911Single source Value from one source, not cross-checked.
- City
- Rising Sun
- County
- Cecil
- State
- Maryland
- Country
- United States
- Coordinates
- 39.6882, -76.0492 — precision precise (locality)
View on OpenStreetMap - Population
- 10,402 (ZCTA, ACS 5-year)
- Median household income
- $100,401
- Median age
- 42.2
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
Nearby localities
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). Data generated on 2026-08-21. Methodology · Report an error on this page