Charlestown Maryland ZIP Codes
Charlestown holds a single ZIP code.
Every ZIP code in Charlestown
| ZIP code | County |
|---|---|
| 21914 | Cecil County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Charlestown codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Charlestown. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Charlestown ZIP code begins 219. Those first three digits identify the sectional center facility that processes mail for this part of Maryland. Statewide that range covers 17 ZIP codes, so Charlestown accounts for 6% of it.
Every Maryland ZIP prefix and the region it covers →
Area codes covering Charlestown
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Charlestown occupies.
Charlestown Maryland area codes in full →
Where Charlestown's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Charlestown
| City | Distance | ZIP codes |
|---|---|---|
| North East Maryland ZIP codes | 3.0 mi | 1 ZIP code |
| Perryville Maryland ZIP codes | 4.2 mi | 1 ZIP code |
| Port Deposit Maryland ZIP codes | 6.3 mi | 1 ZIP code |
| Havre De Grace Maryland ZIP codes | 7.2 mi | 1 ZIP code |
| Elkton Maryland ZIP codes | 8.9 mi | 2 ZIP codes |
| Rising Sun Maryland ZIP codes | 9.1 mi | 1 ZIP code |
| Chesapeake City Maryland ZIP codes | 10 mi | 1 ZIP code |
| Aberdeen Maryland ZIP codes | 11 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.