📍 View location on OpenStreetMap (40.849110, -90.989050)
| Data Metric | Local Statistic |
|---|---|
| Postal / Zip Code | 61437 |
| Primary City | Gladstone |
| State / Province | IL |
| County | Henderson |
| Total Population | 549 |
| Population Density | 5.6 people/sq mi |
| Timezone | America/Chicago |
| Metric | ZIP 61437 | Henderson County records | IL records |
|---|---|---|---|
| Population estimate | 549 | 5,743 (sum) | 12,694,745 (sum) |
| Population Density | 5.6 /sq mi | -- | -- |
| County population rank | #6 of 8 | -- | -- |
| State population rank | #1088 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 61418 | Biggsville | 6.5 mi | 575 |
| ZIP 61425 | Carman | 6.6 mi | 672 |
| ZIP 61469 | Oquawka | 8.8 mi | 1,818 |
| ZIP 61480 | Stronghurst | 9.5 mi | 1,236 |
| ZIP 61447 | Kirkwood | 11.7 mi | 1,020 |
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 →