ZIP Code 21690 – Chestertown, MD
Chestertown, Maryland · Queen Anne's County · Eastern time
| ZIP code | 21690 |
|---|---|
| City | Chestertown |
| State | Maryland |
| County | Queen Anne's County |
| Population | Not published (no Census ZIP area) |
| Time zone | Eastern · local time |
| ZIP type | PO box or unique ZIP (no Census area) |
| Center (lat, long) | 39.0346, -76.0921 |
Area codes in this area
These are the area codes that most often serve ZIP 21690 (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 21690
ZIP code 21690 is assigned to Chestertown, Maryland. It lies in Queen Anne's County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 21656 (Price), about 0 miles away.
Every address in 21690 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