Union County, Illinois ZIP Codes
- ZIP records
7 - Cities represented
7 - Sum of listed ZIP population estimates
16,172
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 62906 | Anna | 7,329 |
| 2 | 62920 | Cobden | 2,959 |
| 3 | 62952 | Jonesboro | 2,852 |
| 4 | 62926 | Dongola | 1,998 |
| 5 | 62905 | Alto Pass | 779 |
| 6 | 62998 | Wolf Lake | 218 |
| 7 | 62961 | Millcreek | 37 |
Cities in Union County
ZIP Directory
Browse all ZIP data for Illinois
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.