ShareYourGroupShareYourGroupZIP Codes

ZIP codes in LaSalle County, Illinois

LaSalle County, Illinois has 24 ZIP codes in this list, from 60470 to 61373. They cover 24 places, among them Ransom, Earlville, Leland and Serena.

The ZIP code areas of LaSalle County add up to about 1,235 square miles of land (3,198 sq km) as the Census Bureau draws them. The largest is 61364 (Streator), with 157 square miles.

Using these codes

Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.

All of Illinois ZIP look-up