New Windsor Maryland ZIP Codes
New Windsor holds a single ZIP code.
Every ZIP code in New Windsor
| ZIP code | County |
|---|---|
| 21776 | Carroll 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 New Windsor codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for New Windsor. 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 New Windsor 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 New Windsor accounts for 2% of it.
Every Maryland ZIP prefix and the region it covers →
Area codes covering New Windsor
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 New Windsor occupies.
New Windsor Maryland area codes in full →
Where New Windsor's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near New Windsor
| City | Distance | ZIP codes |
|---|---|---|
| Union Bridge Maryland ZIP codes | 4.4 mi | 1 ZIP code |
| Westminster Maryland ZIP codes | 5.5 mi | 2 ZIP codes |
| Taneytown Maryland ZIP codes | 8.7 mi | 1 ZIP code |
| Woodsboro Maryland ZIP codes | 11 mi | 1 ZIP code |
| Mount Airy Maryland ZIP codes | 12 mi | 1 ZIP code |
| Sykesville Maryland ZIP codes | 14 mi | 1 ZIP code |
| Manchester Maryland ZIP codes | 14 mi | 1 ZIP code |
| Hampstead Maryland ZIP codes | 14 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.