ZIP CodesZIP codes in Johnson County, Arkansas
Johnson County, Arkansas has 8 ZIP codes in this list, from 72830 to 72854. They cover 8 places, among them Clarksville, Coal Hill, Hagarville and Hartman.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 72830 | Clarksville | 140 | 35.491, -93.491 |
| 72832 | Coal Hill | 3.4 | 35.437, -93.672 |
| 72839 | Hagarville | 151 | 35.615, -93.273 |
| 72840 | Hartman | 46.8 | 35.444, -93.614 |
| 72845 | Knoxville | 11.1 | 35.375, -93.362 |
| 72846 | Lamar | 99.1 | 35.435, -93.355 |
| 72852 | Oark | 83.4 | 35.709, -93.558 |
| 72854 | Ozone | 131 | 35.657, -93.431 |
The ZIP code areas of Johnson County add up to about 665 square miles of land (1,723 sq km) as the Census Bureau draws them. The largest is 72839 (Hagarville), with 151 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Clarksville, AR 72830.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.