Middletown Delaware ZIP Codes
Middletown holds a single ZIP code.
Every ZIP code in Middletown
| ZIP code | County |
|---|---|
| 19709 | New Castle 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Middletown codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Middletown. 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 Middletown ZIP code begins 197. Those first three digits identify the sectional center facility that processes mail for this part of Delaware. Statewide that range covers 27 ZIP codes, so Middletown accounts for 4% of it.
Every Delaware ZIP prefix and the region it covers →
Area codes covering Middletown
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Middletown occupies.
Middletown Delaware area codes in full →
Where Middletown's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Middletown
| City | Distance | ZIP codes |
|---|---|---|
| Townsend Delaware ZIP codes | 2.8 mi | 1 ZIP code |
| Odessa Delaware ZIP codes | 3.2 mi | 1 ZIP code |
| Delaware City Delaware ZIP codes | 11 mi | 1 ZIP code |
| Smyrna Delaware ZIP codes | 12 mi | 1 ZIP code |
| Bear Delaware ZIP codes | 12 mi | 1 ZIP code |
| Clayton Delaware ZIP codes | 13 mi | 1 ZIP code |
| Kenton Delaware ZIP codes | 15 mi | 1 ZIP code |
| Newark Delaware ZIP codes | 16 mi | 10 ZIP codes |
Straight-line distance between place reference points, not driving distance.