Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/CA/COUNTY/SONOMA

Sonoma County, CA ZIP codes

There are 50 ZIP codes in Sonoma County, CA, in 36 towns, from 94515 to 95497. The largest are 94928 (Rohnert Park), 95403 (Santa Rosa) and 95407 (Santa Rosa). 1 more crosses into it from a neighbouring county: 94952.

The county seat is Santa Rosa.

ZIP codes
50
Partly in it
1 more
Towns
36
County seat
Santa Rosa
County FIPS
06097
Population
485,040
Median household income
$104,674
Land area
1,575 sq mi
Area codes
369, 707

Sonoma County ZIP codes by town

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Sonoma County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Sonoma County.

Map of Sonoma County ZIP codes

9451594922949239492694927949289493194951949539495494955949729497594999954019540295403954049540595406954079540995412954169541995421954259543095431954339543695439954419544295444954469544895450954529546295465954719547295473954769548095486954879549295497

The ZIP codes of Sonoma County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Sonoma County in numbers

About 485,040 people live in Sonoma County, in 190,998 households, the 17th most populous of California's 58 counties. The median household income is $104,674 a year, 6% above the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $815,500 (11% above the California median), and median gross rent is $2,158 a month. The median age is 42.9; 38.5% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 25 minutes.

Population485,040Sonoma485,040
Households190,998Sonoma190,998
Median age42.9Sonoma42.9California37.9US 38.9
Median household income$104,674Sonoma$104,674California$99,122US $80,734
Median home value$815,500Sonoma$815,500California$734,700US $332,700
Median gross rent$2,158Sonoma$2,158California$2,036US $1,413
Bachelor's degree or higher38.5%Sonoma38.5%California37.1%US 35.7%
Mean commute25.1 minSonoma25.1 minCalifornia28.7 minUS 26.4 min
Population density308 / sq miSonoma308 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Sonoma County

Largest towns in Sonoma County
TownZIP codesPopulation
Santa Rosa 8 177,090
Petaluma 5 59,247
Rohnert Park 3 44,575
Windsor 1 26,081
Healdsburg 1 11,243
Sonoma 1 10,670
Cloverdale 1 8,886
Cotati 1 7,489
Sebastopol 2 7,445
Boyes Hot Springs 1 7,247
Calistoga 1 5,111
Guerneville 1 4,100
Forestville 1 3,717
El Verano 1 3,443
Penngrove 1 2,119

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Sonoma County.

Not sure you are in Sonoma County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Sonoma County, with figures

ZIP codes in Sonoma County
ZIP City Type Population Median income Median home
94515 Calistoga , CA Standard 6,946 $94,464 $824,900
94922 Bodega , CA Standard 6 — —
94923 Bodega Bay , CA Standard 1,483 $147,546 $1,186,500
94926 Rohnert Park , CA No street area — — —
94927 Rohnert Park , CA No street area — — —
94928 Rohnert Park , CA Standard 46,829 $99,280 $666,000
94931 Cotati , CA Standard 9,487 $101,994 $820,000
94951 Penngrove , CA Standard 3,294 $106,332 $1,207,000
94953 Petaluma , CA No street area — — —
94954 Petaluma , CA Standard 37,574 $113,527 $840,500
94955 Petaluma , CA No street area — — —
94972 Valley Ford , CA Standard 0 — —
94975 Petaluma , CA No street area — — —
94999 Petaluma , CA No street area — — —
95401 Santa Rosa , CA Standard 36,861 $93,615 $630,900
95402 Santa Rosa , CA No street area — — —
95403 Santa Rosa , CA Standard 45,806 $98,191 $693,000
95404 Santa Rosa , CA Standard 37,011 $105,437 $903,900
95405 Santa Rosa , CA Standard 22,744 $118,299 $788,000
95406 Santa Rosa , CA No street area — — —
95407 Santa Rosa , CA Standard 42,036 $82,863 $627,100
95409 Santa Rosa , CA Standard 25,616 $107,867 $802,000
95412 Annapolis , CA Standard 331 — $716,900
95416 Boyes Hot Springs , CA No street area — — —
95419 Camp Meeker , CA Standard 152 — $669,300
95421 Cazadero , CA Standard 1,570 $78,906 $633,400
95425 Cloverdale , CA Standard 10,978 $119,092 $653,200
95430 Duncans Mills , CA Standard 0 — —
95431 Eldridge , CA Standard 43 — —
95433 El Verano , CA No street area — — —
95436 Forestville , CA Standard 5,821 $109,531 $739,600
95439 Fulton , CA Standard 486 — $721,700
95441 Geyserville , CA Standard 1,648 $126,806 $1,282,300
95442 Glen Ellen , CA Standard 3,449 $164,750 $1,328,100
95444 Graton , CA Standard 625 $105,179 $801,000
95446 Guerneville , CA Standard 4,607 $85,833 $610,600
95448 Healdsburg , CA Standard 16,077 $105,120 $1,048,300
95450 Jenner , CA Standard 224 $123,125 $871,100
95452 Kenwood , CA Standard 1,762 $118,986 $948,400
95462 Monte Rio , CA Standard 1,058 $85,536 $680,900
95465 Occidental , CA Standard 1,203 $120,781 $1,079,500
95471 Rio Nido , CA Standard 394 — $603,400
95472 Sebastopol , CA Standard 28,747 $108,925 $1,020,100
95473 Sebastopol , CA No street area — — —
95476 Sonoma , CA Standard 35,196 $105,374 $896,900
95480 Stewarts Point , CA Standard 8 — —
95486 Villa Grande , CA Standard 17 — —
95487 Vineburg , CA No street area — — —
95492 Windsor , CA Standard 27,429 $134,211 $810,200
95497 The Sea Ranch , CA Standard 1,275 $138,125 $1,381,800

Cite this page

zipcodes.pro. “Sonoma County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ca/county/sonoma

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