Sonoma property tax: where it goes
A Sonoma house at the typical market value ($970,500) pays about $12,060 a year on the property tax bill, including flat charges on the same bill. Estimated from public rates, not anyone's actual bill.
A Sonoma house pays 1.114% of its taxable value in property tax, plus flat charges on the same bill. For a house at $970,500 of market value with the homeowners' exemption, that's about $11,007 a year.
Tax is levied on net taxable value times the tax rate per $100, plus the voter-approved taxes and direct charges listed on the bill.
Pay or manage it
Who taxes this house
| Taxing agency | Rate | On $970,500 |
|---|---|---|
| Countywide 1% tax (Prop 13) | 1% | $9,635 |
| Sonoma Water Warm Springs Dam / Russian River Project | 0.007% | $67 |
| Sonoma Valley Healthcare District 2008 bond | 0.014% | $135 |
| Sonoma Valley Unified School District 2010 bond (schools) | 0.034% | $328 |
| Sonoma Valley Unified School District 2016 bond (schools) | 0.032% | $308 |
| Sonoma County Junior College District 2002 bond (schools) | 0.009% | $87 |
| Sonoma County Junior College District 2014 bond (schools) | 0.018% | $173 |
| Sonoma Valley Health Care District parcel tax | flat | $250 |
| Marin/Sonoma mosquito & vector control (MS-SONOMA MOSQUITO #1) | flat | $12 |
| SF Bay Restoration Authority parcel tax (Measure AA) | flat | $12 |
| Total | 1.114% | $11,007 |
2026-27 tax year, Sonoma County (Sonoma tax rate area 006-000). Exemptions applied: Homeowners' exemption ($7,000).
How Sonoma compares with nearby cities
Property tax rate
- Novato · 15 mi1.09%
- Sonoma1.11%
- Vallejo · 17 mi1.12%
- Napa · 9 mi1.13%
- Petaluma · 10 mi1.13%
- Rohnert Park · 14 mi1.14%
The combined rate of every agency on the bill, before exemptions.
Dates
| When | What |
|---|---|
| Nov 30, 2026 (in 26 days) | Last day of Sonoma County's 2026 assessment appeal filing period (opened July 2). |
| Feb 15 | Last day for a first-time homeowners' exemption claim to get the full exemption for that year. |
| Nov 1 | First property tax installment due; it becomes delinquent after Dec 10, 2026, with a 10% penalty. |
Sources
Checked October 29, 2026. Every number here comes from the public sources listed, matched by our checker.
Rates change every year; this page shows when it was last checked. Nothing here is legal, tax or insurance advice.
Property tax in other California cities
Selma property taxShafter property taxShasta Lake property taxSimi Valley property taxSolana Beach property taxSoledad property taxSouth El Monte property taxSouth Gate property taxSouth Lake Tahoe property taxSouth Pasadena property taxSouth San Francisco property taxStanton property taxAll California cities →