Knoxville Arkansas ZIP Codes
Knoxville holds a single ZIP code.
Every ZIP code in Knoxville
| ZIP code | County |
|---|---|
| 72845 | Johnson 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Knoxville codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Knoxville. 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 Knoxville ZIP code begins 728. Those first three digits identify the sectional center facility that processes mail for this part of Arkansas. Statewide that range covers 38 ZIP codes, so Knoxville accounts for 3% of it.
Every Arkansas ZIP prefix and the region it covers →
Area codes covering Knoxville
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 Knoxville occupies.
Knoxville Arkansas area codes in full →
Where Knoxville's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Knoxville
| City | Distance | ZIP codes |
|---|---|---|
| Lamar Arkansas ZIP codes | 5.0 mi | 1 ZIP code |
| London Arkansas ZIP codes | 7.5 mi | 1 ZIP code |
| Clarksville Arkansas ZIP codes | 8.6 mi | 1 ZIP code |
| Scranton Arkansas ZIP codes | 10 mi | 1 ZIP code |
| Dover Arkansas ZIP codes | 14 mi | 1 ZIP code |
| Russellville Arkansas ZIP codes | 14 mi | 4 ZIP codes |
| Dardanelle Arkansas ZIP codes | 15 mi | 1 ZIP code |
| Hartman Arkansas ZIP codes | 16 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.