Benton City Washington ZIP Codes
Benton City holds a single ZIP code.
Every ZIP code in Benton City
| ZIP code | County |
|---|---|
| 99320 | Benton 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Benton City codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Benton City. 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 Benton City ZIP code begins 993. Those first three digits identify the sectional center facility that processes mail for this part of Washington. Statewide that range covers 36 ZIP codes, so Benton City accounts for 3% of it.
Every Washington ZIP prefix and the region it covers →
Area codes covering Benton City
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 Benton City occupies.
Benton City Washington area codes in full →
Where Benton City's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Benton City
| City | Distance | ZIP codes |
|---|---|---|
| West Richland Washington ZIP codes | 5.6 mi | 1 ZIP code |
| Richland Washington ZIP codes | 9.0 mi | 2 ZIP codes |
| Prosser Washington ZIP codes | 14 mi | 1 ZIP code |
| Kennewick Washington ZIP codes | 15 mi | 3 ZIP codes |
| Pasco Washington ZIP codes | 17 mi | 2 ZIP codes |
| Grandview Washington ZIP codes | 21 mi | 1 ZIP code |
| Mabton Washington ZIP codes | 25 mi | 1 ZIP code |
| Sunnyside Washington ZIP codes | 25 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.