Smiths Grove Kentucky ZIP Codes
Smiths Grove holds a single ZIP code.
Every ZIP code in Smiths Grove
| ZIP code | County |
|---|---|
| 42171 | Warren 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Smiths Grove codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Smiths Grove. 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 Smiths Grove ZIP code begins 421. Those first three digits identify the sectional center facility that processes mail for this part of Kentucky. Statewide that range covers 33 ZIP codes, so Smiths Grove accounts for 3% of it.
Every Kentucky ZIP prefix and the region it covers →
Area codes covering Smiths Grove
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 Smiths Grove occupies.
Smiths Grove Kentucky area codes in full →
Where Smiths Grove's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Smiths Grove
| City | Distance | ZIP codes |
|---|---|---|
| Oakland Kentucky ZIP codes | 2.2 mi | 1 ZIP code |
| Park City Kentucky ZIP codes | 9.3 mi | 1 ZIP code |
| Brownsville Kentucky ZIP codes | 11 mi | 1 ZIP code |
| Bowling Green Kentucky ZIP codes | 13 mi | 4 ZIP codes |
| Cave City Kentucky ZIP codes | 15 mi | 1 ZIP code |
| Glasgow Kentucky ZIP codes | 16 mi | 2 ZIP codes |
| Horse Cave Kentucky ZIP codes | 18 mi | 1 ZIP code |
| Scottsville Kentucky ZIP codes | 21 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.