Lewiston Utah ZIP Codes
Lewiston holds a single ZIP code.
Every ZIP code in Lewiston
| ZIP code | County |
|---|---|
| 84320 | Cache 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Lewiston codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Lewiston. 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 Lewiston ZIP code begins 843. Those first three digits identify the sectional center facility that processes mail for this part of Utah. Statewide that range covers 40 ZIP codes, so Lewiston accounts for 3% of it.
Every Utah ZIP prefix and the region it covers →
Area codes covering Lewiston
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 Lewiston occupies.
Lewiston Utah area codes in full →
Where Lewiston's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Lewiston
| City | Distance | ZIP codes |
|---|---|---|
| Cornish Utah ZIP codes | 3.7 mi | 1 ZIP code |
| Trenton Utah ZIP codes | 4.6 mi | 1 ZIP code |
| Richmond Utah ZIP codes | 5.1 mi | 1 ZIP code |
| Clarkston Utah ZIP codes | 9.1 mi | 1 ZIP code |
| Newton Utah ZIP codes | 9.2 mi | 1 ZIP code |
| Smithfield Utah ZIP codes | 9.7 mi | 1 ZIP code |
| Hyde Park Utah ZIP codes | 12 mi | 1 ZIP code |
| Plymouth Utah ZIP codes | 15 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.