Find the last 4 digits (ZIP+4) for an address in 61233

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ZIP Code 61233 – Andover, IL

Andover, Illinois · Henry County · Central time

ZIP code61233
CityAndover
StateIllinois
CountyHenry County
Population281
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area0.72 sq mi
Center (lat, long)41.2947, -90.2913

Area codes in this area

861

These are the area codes that most often serve ZIP 61233 (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

61262 Lynn Center · 3.2 mi61274 Osco · 5.3 mi61468 Ophiem · 5.6 mi61238 Cambridge · 6.2 mi61273 Orion · 7.4 mi61490 Woodhull · 7.7 mi61413 Alpha · 8.5 mi61419 Bishop Hill · 11.1 mi

About ZIP 61233

ZIP code 61233 is assigned to Andover, Illinois. It lies in Henry County. Its Census area covers about 0.72 square miles of land. The closest neighboring ZIP is 61262 (Lynn Center), about 3.2 miles away.

Every address in 61233 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