Find the last 4 digits (ZIP+4) for an address in 61011

ZIP 61011, Caledonia, IL is filled in. Just type the street address.

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ZIP Code 61011 – Caledonia, IL

Caledonia, Illinois · Boone County · Central time

ZIP code61011
CityCaledonia
StateIllinois
CountyBoone CountyWinnebago County
Population2,676
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area38.53 sq mi
Center (lat, long)42.3923, -88.8971

Area codes in this area

779815

These are the area codes that most often serve ZIP 61011 (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

61065 Poplar Grove · 3.1 mi61073 Roscoe · 5.4 mi61111 Loves Park · 6.7 mi61012 Capron · 6.8 mi61115 Machesney Park · 6.8 mi61080 South Beloit · 7.5 mi61114 Rockford · 7.6 mi61107 Rockford · 9.1 mi

About ZIP 61011

ZIP code 61011 is assigned to Caledonia, Illinois. It crosses 2 counties; most of its land is in Boone County. Its Census area covers about 38.53 square miles of land. The closest neighboring ZIP is 61065 (Poplar Grove), about 3.1 miles away.

Every address in 61011 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