County · Illinois · United States
Union County ZIP codes
7 ZIP codes · 7 cities · FIPS 17181
Key facts
- State
- Illinois (IL)
- FIPS code
- 17181
- Population
- 16,972
- Median household income
- $56,420
- Median age
- 44.3
- Land area
- 413.4 sq mi (1,070.7 km²)
- Population density
- 41 / sq mi
- Area codes
- 618, 730
Cities and ZIP codes in Union County (7)
| City | ZIP codes |
|---|---|
| Alto Pass | 62905 |
| Anna | 62906 |
| Cobden | 62920 |
| Dongola | 62926 |
| Jonesboro | 62952 |
| Millcreek | 62961 |
| Wolf Lake | 62998 |
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.