Rio Oso, California
Rio Oso, California, in Sutter County, has ZIP code 95674 and area code 530, with 837 as an overlay.
- ZIP code
- 95674
- Area codes
- 530, 837
- County
- Sutter County
- State
- California
- Time zone
- Pacific Time
- Coordinates
- 38.9670, -121.4773
ZIP codes in Rio Oso
Area codes for Rio Oso
- Area code 530
In service since November 1, 1997. Shares its area with 837. Local calls are dialed with 1 plus ten digits.
- Area code 837
In service since January 31, 2025. Shares its area with 530. 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
Rio Oso is in the Pacific Time zone.
Towns near Rio Oso
- Trowbridge5.6 km (3.5 mi)
- Plumas Lake7.1 km (4.4 mi)
- East Nicolaus8.6 km (5.3 mi)
- Wheatland8.8 km (5.5 mi)
- Sheridan10 km (6.2 mi)
- Nicolaus13.2 km (8.2 mi)
- Olivehurst14.6 km (9.1 mi)
- Pleasant Grove17.4 km (11 mi)
Local numbers in area code 530
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- (530) 886-7890Auburn, CA$59View & buy
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- (530) 920-8880Grass Valley, CA$59View & buy
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- (530) 456-4777Gridley, CA$69View & buy
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