Find the last 4 digits (ZIP+4) for an address in 61071

ZIP 61071, Rock Falls, IL is filled in. Just type the street address.

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ZIP Code 61071 – Rock Falls, IL

Rock Falls, Illinois · Whiteside County · Central time

ZIP code61071
CityRock Falls
StateIllinois
CountyWhiteside CountyLee County
Population13,581
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area72.48 sq mi
Center (lat, long)41.7247, -89.6989

Area codes in this area

779815

These are the area codes that most often serve ZIP 61071 (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 · 5.4 mi61243 Deer Grove · 7.4 mi61042 Harmon · 7.5 mi61081 Sterling · 8.9 mi61283 Tampico · 10.3 mi61261 Lyndon · 10.9 mi61021 Dixon · 13.5 mi61376 Walnut · 13.8 mi

About ZIP 61071

ZIP code 61071 is assigned to Rock Falls, Illinois. It crosses 2 counties; most of its land is in Whiteside County. Its Census area covers about 72.48 square miles of land. The closest neighboring ZIP is 61037 (Galt), about 5.4 miles away.

Every address in 61071 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