County · Illinois · United States
Johnson County ZIP codes
9 ZIP codes · 9 cities · FIPS 17087
Key facts
- State
- Illinois (IL)
- FIPS code
- 17087
- Population
- 13,350
- Median household income
- $65,203
- Median age
- 42.7
- Land area
- 343.7 sq mi (890.3 km²)
- Population density
- 39 / sq mi
- Area codes
- 618, 730
Cities and ZIP codes in Johnson County (9)
| City | ZIP codes |
|---|---|
| Belknap | 62908 |
| Buncombe | 62912 |
| Cypress | 62923 |
| Goreville | 62939 |
| Grantsburg | 62943 |
| New Burnside | 62967 |
| Ozark | 62972 |
| Simpson | 62985 |
| Vienna | 62995 |
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.