279 Area Code: Sacramento, California

California's 279 area code is a comparatively recent overlay covering the Sacramento region, sharing geography with the long-established 916 code. Sacramento itself, the state capital, anchors the directory's records for 279. The city sits at the confluence of the Sacramento and American rivers, on the eastern edge of the Central Valley where the floor of the valley begins to lift toward the Sierra foothills. State government, several university campuses, and a long-running role as the commercial center of the northern Central Valley shape the city's working profile.

Names of other California cities — Anaheim, Bakersfield, Chico, Concord, and others — frequently appear in the directory's records linked to 279 numbers. They are not part of 279's footprint. Their appearance is driven by California's high inter-city mobility, by porting, and by the way address linkages and other public-record dynamics route across area-code boundaries. The 279 code is still in the process of being filled with allocations, and the directory's current holdings — 12 distinct prefixes documented in detail — should be read as an early-stage subset of the prefix population that will eventually populate this code.

Sacramento's median household income runs noticeably above the US figure, supported by state-government employment, a growing tech corridor, and a healthcare sector centered on multiple major hospital systems. Home values come in well above the national median, the median age sits in the mid-thirties, and population places the city among the larger California metros — substantial but well behind the Bay Area and Southern California giants.