61257 vs 61275 ZIP Codes
Hillsdale, IL · Port Byron, IL
| Metric | 61257 | 61275 |
|---|---|---|
| City | Hillsdale | Port Byron |
| County | Rock Island | Rock Island |
| State | Illinois | Illinois |
| Time zone | Central Time | Central Time |
| Population | 1,210 | 4,347 |
Demographic figures come from U.S. Census Bureau / ACS data included in the source ZIP dataset; many ZIP codes have no demographic figures in that dataset.