Brunswick Maryland ZIP Codes
Brunswick holds a single ZIP code.
Every ZIP code in Brunswick
| ZIP code | County |
|---|---|
| 21716 | Frederick 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Brunswick codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Brunswick. 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 Brunswick ZIP code begins 217. Those first three digits identify the sectional center facility that processes mail for this part of Maryland. Statewide that range covers 66 ZIP codes, so Brunswick accounts for 2% of it.
Every Maryland ZIP prefix and the region it covers →
Area codes covering Brunswick
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 Brunswick occupies.
Brunswick Maryland area codes in full →
Where Brunswick's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Brunswick
| City | Distance | ZIP codes |
|---|---|---|
| Burkittsville Maryland ZIP codes | 5.2 mi | 1 ZIP code |
| Middletown Maryland ZIP codes | 9.8 mi | 1 ZIP code |
| Sharpsburg Maryland ZIP codes | 12 mi | 1 ZIP code |
| Keedysville Maryland ZIP codes | 12 mi | 1 ZIP code |
| Boonsboro Maryland ZIP codes | 14 mi | 1 ZIP code |
| Myersville Maryland ZIP codes | 14 mi | 1 ZIP code |
| Frederick Maryland ZIP codes | 14 mi | 6 ZIP codes |
| Barnesville Maryland ZIP codes | 15 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.