Henderson, Illinois
Henderson, Illinois, in Knox County, has ZIP code 61439 and area code 309, with 861 as an overlay.
- ZIP code
- 61439
- Area codes
- 309, 861
- County
- Knox County
- State
- Illinois
- Time zone
- Central Time
- Coordinates
- 41.0276, -90.3575
ZIP codes in Henderson
Area codes for Henderson
- Area code 309
In service since 1957. Shares its area with 861. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
- Area code 861
In service since February 24, 2023. Shares its area with 309. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.
Time zone
Henderson is in the Central Time zone.
Towns near Henderson
- Wataga7.2 km (4.5 mi)
- Galesburg8.7 km (5.4 mi)
- Rio9.6 km (6.0 mi)
- East Galesburg10.5 km (6.5 mi)
- Oneida11.7 km (7.3 mi)
- North Henderson12.7 km (7.9 mi)
- Knoxville14.3 km (8.9 mi)
- Alexis15.8 km (9.8 mi)
Local numbers in area code 309
Looking for a phone number with a Henderson area code? These 309 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (309) 848-8008Port Byron, IL$69View & buy
- (309) 848-8777Port Byron, ILAlso spells USPS$69View & buy
- (309) 850-2777Edgington, ILAlso spells APPS$69View & buy
- (309) 850-5777Edgington, IL$69View & buy
- (309) 858-8008Biggsville, IL$69View & buy
- (309) 858-8777Biggsville, ILAlso spells USPS$69View & buy
- (309) 864-0777Macomb, IL$69View & buy
- (309) 864-8008Macomb, IL$69View & buy
- (309) 866-8008Morton, IL$69View & buy
- (309) 878-8777Cooksville, ILAlso spells USPS$69View & buy
- (309) 951-0777Danvers, IL$69View & buy
- (309) 951-0888Danvers, IL$69View & buy
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