📍 View location on OpenStreetMap (41.590250, -90.223220)
| Data Metric | Local Statistic |
|---|---|
| Postal / Zip Code | 61257 |
| Primary City | Hillsdale |
| State / Province | IL |
| County | Rock Island |
| Total Population | 844 |
| Population Density | 7.9 people/sq mi |
| Timezone | America/Chicago |
| Metric | ZIP 61257 | Rock Island County records | IL records |
|---|---|---|---|
| Population estimate | 844 | 143,264 (sum) | 12,694,745 (sum) |
| Population Density | 7.9 /sq mi | -- | -- |
| County population rank | #14 of 16 | -- | -- |
| State population rank | #961 of 1,390 | -- | -- |
Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.
| ZIP Code | City | Distance | Population estimate |
|---|---|---|---|
| ZIP 61275 | Port Byron | 3.9 mi | 4,253 |
| ZIP 61278 | Rapids City | 6.2 mi | 678 |
| ZIP 61250 | Erie | 7.9 mi | 2,781 |
| ZIP 61242 | Cordova | 8.3 mi | 1,135 |
| ZIP 61241 | Colona | 8.7 mi | 6,587 |
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →