Fair Oaks is a census-designated place (CDP) in Sacramento County, California, United States. It is part of the Sacramento–Arden-Arcade–Roseville Metropolitan Statistical Area. The population was 30,912 at the 2010 census, up from 28,008 at the 2000 census. The Fair Oaks zip code is 95628 and its area codes are 916 and 279.
Fair Oaks is a natural, lush foliage town with rolling streets, canopies of trees, located at 38°39′5″N 121°15′33″W (38.651254, -121.259279), between Sacramento and Folsom.
Fair Oaks is bounded on the south side by the American River, and Gold River, on the north side by the city of Citrus Heights, on the west side by Carmichael, and the east side by Orangevale and Folsom. Fair Oaks has a mix of upscale, custom home pocket areas, few apartments, and is a semi-rural neighborhood with easy access to Highway 50.
According to the United States Census Bureau, the CDP has a total area of 11.2 square miles (29 km2), of which, 10.8 square miles (28 km2) of it is land and 0.5 square miles (1.3 km2) of it (4.02%) is water.
Fair Oaks has a hot-summer Mediterranean climate (Köppen Csa), characterized by damp to wet, mild winters and hot, dry summers. The wet season is generally October through April, though there may be a day or two of light rainfall in June or September.