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ZIP codes in Johnson County, Illinois

Johnson County, Illinois has 10 ZIP codes in this list, from 62908 to 62995. They cover 10 places, among them Belknap, Boles, Buncombe and Cypress.

ZIP codePlaceLand area (sq mi)Map point
62908Belknap49.937.327, -88.951
62909Bolesno area37.447, -88.877
62912Buncombe52.137.464, -88.981
62923Cypress23.237.365, -88.975
62939Goreville44.737.575, -88.966
62943Grantsburg37.537.379, -88.758
62967New Burnside6.537.578, -88.745
62972Ozark53.737.537, -88.769
62985Simpson74.437.467, -88.755
62995Vienna12037.420, -88.888

The ZIP code areas of Johnson County add up to about 462 square miles of land (1,196 sq km) as the Census Bureau draws them. The largest is 62995 (Vienna), with 120 square miles.

Using these codes

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.

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