Houston Delaware ZIP Codes
Houston holds a single ZIP code.
Every ZIP code in Houston
| ZIP code | County |
|---|---|
| 19954 | Kent 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Houston codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Houston. 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 Houston ZIP code begins 199. Those first three digits identify the sectional center facility that processes mail for this part of Delaware. Statewide that range covers 44 ZIP codes, so Houston accounts for 2% of it.
Every Delaware ZIP prefix and the region it covers →
Area codes covering Houston
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 Houston occupies.
Houston Delaware area codes in full →
Where Houston's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Houston
| City | Distance | ZIP codes |
|---|---|---|
| Harrington Delaware ZIP codes | 3.7 mi | 1 ZIP code |
| Milford Delaware ZIP codes | 4.4 mi | 1 ZIP code |
| Frederica Delaware ZIP codes | 6.6 mi | 1 ZIP code |
| Felton Delaware ZIP codes | 7.7 mi | 1 ZIP code |
| Ellendale Delaware ZIP codes | 8.5 mi | 1 ZIP code |
| Greenwood Delaware ZIP codes | 8.9 mi | 1 ZIP code |
| Viola Delaware ZIP codes | 9.4 mi | 1 ZIP code |
| Magnolia Delaware ZIP codes | 11 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.