Sonoma County, California ZIP Codes

38 ZIP Codes

Zip Code
City
Population
94928Rohnert Park46,829
95403Santa Rosa45,806
95407Santa Rosa42,036
94954Petaluma37,574
95404Santa Rosa37,011
95401Santa Rosa36,861
95476Sonoma35,196
95472Sebastopol28,747
95492Windsor27,429
95409Santa Rosa25,616
95405Santa Rosa22,744
95448Healdsburg16,077
95425Cloverdale10,978
94931Cotati9,487
94515Calistoga6,946
95436Forestville5,821
95446Guerneville4,607
95442Glen Ellen3,449
94951Penngrove3,294
95452Kenwood1,762
95441Geyserville1,648
95421Cazadero1,570
94923Bodega Bay1,483
95497The Sea Ranch1,275
95465Occidental1,203
95462Monte Rio1,058
95444Graton625
95439Fulton486
95471Rio Nido394
95412Annapolis331
95450Jenner224
95419Camp Meeker152
95431Eldridge43
95486Villa Grande17
95480Stewarts Point8
94922Bodega6
95430Duncans Mills0
94972Valley Ford0

Overview of ZIP Codes in Sonoma County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
38
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 38 ZCTAs in Sonoma County, California (US Census).