ZIP Code 61257

Zip Code: 61257
Type: Standard
Official USPS city name: Hillsdale
Official USPS State Code: IL
Official State Name: Illinois
ZCTA: TRUE
Population: 1112.0
Density: 10.5
Primary Official County Code: 17161
Primary Official County Name: Rock Island
Official County Name: Rock Island
Official County Code: 17161
Imprecise: FALSE
Military: FALSE
Timezone: America/Chicago (16:24 PM Thursday, April 03 2025-04-03 (GMT -0500))
Geo Point: 41.59054, -90.22275