Rock City, Illinois
Rock City, Illinois, in Stephenson County, has ZIP code 61070 and area code 815, with 779 as an overlay.
- ZIP code
- 61070
- Area codes
- 815, 779
- County
- Stephenson County
- State
- Illinois
- Time zone
- Central Time
- Coordinates
- 42.4103, -89.4759
ZIP codes in Rock City
Area codes for Rock City
- Area code 815
In service since 1947. Shares its area with 779. Local calls are dialed with 1 plus ten digits.
- Area code 779
In service since March 17, 2007. Shares its area with 815. Local calls are dialed with 1 plus ten digits.
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
Rock City is in the Central Time zone.
Towns near Rock City
- Rock0.5 km (0.3 mi)
- Dakota5.9 km (3.7 mi)
- Davis6.7 km (4.2 mi)
- Lake Summerset8.6 km (5.3 mi)
- Ridott12.4 km (7.7 mi)
- Cedarville13.7 km (8.5 mi)
- Durand13.9 km (8.6 mi)
- Orangeville15.5 km (9.6 mi)
Local numbers in area code 815
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- (815) 390-7772Braidwood, IL$89View & buy
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- (815) 620-7775Minooka, IL$89View & buy
- (815) 620-7778Minooka, IL$89View & buy
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- (815) 640-7779Ottawa, IL$89View & buy
- (815) 769-1717Seneca, IL$89View & buy
- (815) 770-5557Harvard, IL$89View & buy
- (815) 770-7773Harvard, IL$89View & buy
- (815) 770-7774Harvard, IL$89View & buy
- (815) 770-7878Harvard, ILAlso spells RUST$89View & buy
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