Greensboro Maryland ZIP Codes
Greensboro holds a single ZIP code.
Every ZIP code in Greensboro
| ZIP code | County |
|---|---|
| 21639 | Caroline 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Greensboro codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Greensboro. 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 Greensboro ZIP code begins 216. Those first three digits identify the sectional center facility that processes mail for this part of Maryland. Statewide that range covers 62 ZIP codes, so Greensboro accounts for 2% of it.
Every Maryland ZIP prefix and the region it covers →
Area codes covering Greensboro
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 Greensboro occupies.
Greensboro Maryland area codes in full →
Where Greensboro's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Greensboro
| City | Distance | ZIP codes |
|---|---|---|
| Goldsboro Maryland ZIP codes | 4.0 mi | 1 ZIP code |
| Ridgely Maryland ZIP codes | 4.3 mi | 1 ZIP code |
| Denton Maryland ZIP codes | 6.8 mi | 1 ZIP code |
| Henderson Maryland ZIP codes | 7.2 mi | 1 ZIP code |
| Hillsboro Maryland ZIP codes | 8.3 mi | 1 ZIP code |
| Marydel Maryland ZIP codes | 10 mi | 1 ZIP code |
| Templeville Maryland ZIP codes | 11 mi | 1 ZIP code |
| Barclay Maryland ZIP codes | 12 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.