Johnson County, Arkansas ZIP Codes

8 ZIP Codes

Zip Code
City
Population ↓
72830Clarksville15,757
72846Lamar3,853
72840Hartman2,448
72845Knoxville1,063
72854Ozone791
72832Coal Hill649
72839Hagarville328
72852Oark189

Overview of ZIP Codes in Johnson County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
8
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 8 ZCTAs in Johnson County, Arkansas (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

Recommended Reading