Union Bridge Maryland ZIP Codes
Union Bridge holds a single ZIP code.
Every ZIP code in Union Bridge
| ZIP code | County |
|---|---|
| 21791 | 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Union Bridge codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Union Bridge. 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 Union Bridge 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 Union Bridge accounts for 2% of it.
Every Maryland ZIP prefix and the region it covers →
Area codes covering Union Bridge
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 Union Bridge occupies.
Union Bridge Maryland area codes in full →
Where Union Bridge's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Union Bridge
| City | Distance | ZIP codes |
|---|---|---|
| New Windsor Maryland ZIP codes | 4.4 mi | 1 ZIP code |
| Taneytown Maryland ZIP codes | 6.0 mi | 1 ZIP code |
| Woodsboro Maryland ZIP codes | 7.7 mi | 1 ZIP code |
| Westminster Maryland ZIP codes | 8.9 mi | 2 ZIP codes |
| Walkersville Maryland ZIP codes | 12 mi | 1 ZIP code |
| Emmitsburg Maryland ZIP codes | 12 mi | 1 ZIP code |
| Thurmont Maryland ZIP codes | 13 mi | 1 ZIP code |
| New Market Maryland ZIP codes | 14 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.