Find the last 4 digits (ZIP+4) for an address in 61081

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ZIP Code 61081 – Sterling, IL

Sterling, Illinois · Whiteside County · Central time

ZIP code61081
CitySterling
StateIllinois
CountyWhiteside CountyLee County
Population20,844
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area124.39 sq mi
Center (lat, long)41.8500, -89.7394

Area codes in this area

779815

These are the area codes that most often serve ZIP 61081 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

61037 Galt · 4.4 mi61071 Rock Falls · 8.9 mi61051 Milledgeville · 9.2 mi61091 Woosung · 10.4 mi61014 Chadwick · 11.5 mi61270 Morrison · 11.6 mi61261 Lyndon · 11.8 mi61064 Polo · 12.4 mi

About ZIP 61081

ZIP code 61081 is assigned to Sterling, Illinois. It crosses 2 counties; most of its land is in Whiteside County. Its Census area covers about 124.39 square miles of land. The closest neighboring ZIP is 61037 (Galt), about 4.4 miles away.

Every address in 61081 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources