Find the last 4 digits (ZIP+4) for an address in 21661

ZIP 21661, Rock Hall, MD is filled in. Just type the street address.

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ZIP Code 21661 – Rock Hall, MD

Rock Hall, Maryland · Kent County · Eastern time

ZIP code21661
CityRock Hall
StateMaryland
CountyKent County
Population2,613
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area33.01 sq mi
Center (lat, long)39.0961, -76.2195

Area codes in this area

410443667

These are the area codes that most often serve ZIP 21661 (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

21656 Price · 8 mi21690 Chestertown · 8 mi21617 Centreville · 9.9 mi21620 Chestertown · 10.6 mi21638 Grasonville · 10.8 mi21619 Chester · 10.9 mi21658 Queenstown · 11.2 mi21056 Gibson Island · 11.7 mi

About ZIP 21661

ZIP code 21661 is assigned to Rock Hall, Maryland. It lies in Kent County. Its Census area covers about 33.01 square miles of land. The closest neighboring ZIP is 21656 (Price), about 8 miles away.

Every address in 21661 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