Find the last 4 digits (ZIP+4) for an address in 61439

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ZIP Code 61439 – Henderson, IL

Henderson, Illinois · Knox County · Central time

ZIP code61439
CityHenderson
StateIllinois
CountyKnox County
Population299
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area1.25 sq mi
Center (lat, long)41.0292, -90.3502

Area codes in this area

861

These are the area codes that most often serve ZIP 61439 (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

61488 Wataga · 1.5 mi61472 Rio · 5.4 mi61401 Galesburg · 6.1 mi61430 East Galesburg · 6.2 mi61467 Oneida · 6.3 mi61402 Galesburg · 6.8 mi61448 Knoxville · 8.6 mi61466 North Henderson · 8.9 mi

About ZIP 61439

ZIP code 61439 is assigned to Henderson, Illinois. It lies in Knox County. Its Census area covers about 1.25 square miles of land. The closest neighboring ZIP is 61488 (Wataga), about 1.5 miles away.

Every address in 61439 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