Sales tax in Unincorporated Solano County, CA
The combined sales tax rate in Unincorporated Solano County, CA is about 9.25%, and ranges from 7.25% to 9.625% depending on the exact address.
Estimated from 21 ZIP codes covering Unincorporated Solano County. Enter your ZIP code in the calculator for a closer figure.
- ZIP codes
- 21 on file · 4 wholly inside the city limits
ZIP codes in Unincorporated Solano County
21 on file — 4 wholly inside the city limits and 17 crossing them. Each has its own page.
4 ZIP codes wholly inside Unincorporated Solano County
Every address in these is inside the city limits, so all of them pay Unincorporated Solano County's rate.
17 ZIP codes crossing the city line
Part of each of these lies outside Unincorporated Solano County. An address in one may be taxed at a neighbour's rate instead, and the figure shown is the most likely one across the whole ZIP code.
| ZIP code | Combined rate | Also reaches |
|---|---|---|
| 94503 | 7.75% | American Canyon, Napa, Unincorporated Napa County and Vallejo |
| 94510 | 9.625% | Benicia and Fairfield |
| 94533 | 8.375% | Fairfield, Suisun City and Vacaville |
| 94534 | 8.375% | Fairfield, Vacaville and Vallejo |
| 94535 | 8.375% | Fairfield |
| 94571 | 9.125% | Rio Vista and Unincorporated Sacramento County |
| 94585 | 9.125% | Fairfield and Suisun City |
| 94589 | 9.25% | Vallejo |
| 94590 | 9.25% | Vallejo |
| 94591 | 9.25% | Benicia, Fairfield, Unincorporated Napa County and Vallejo |
| 94592 | 9.25% | Vallejo |
| 95616 | 9.25% | Davis and Unincorporated Yolo County |
| 95618 | 9.25% | Davis and Unincorporated Yolo County |
| 95620 | 8.375% | Dixon, Unincorporated Yolo County, Vacaville and West Sacramento |
| 95687 | 8.125% | Fairfield and Vacaville |
| 95688 | 8.125% | Vacaville |
| 95694 | 8.25% | Unincorporated Yolo County and Winters |
Who levies sales tax across Unincorporated Solano County's ZIP codes
Each government below levies its own share, but not all of them reach every address: the ZIP codes covering Unincorporated Solano County reach into more than one city, and an address pays only the shares whose boundary it falls inside.
| Jurisdiction | Type | Rate | Applies to | Effective | Source |
|---|---|---|---|---|---|
| California | state | 7.25% | all 21 ZIP codes | Jan 1, 2017 | California sales and use tax rates by jurisdiction |
| Unincorporated Solano County | city | 0.125% | all 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Fairfield | city | 1.125% | 7 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Vallejo | city | 2% | 6 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Unincorporated Yolo County | city | 0% | 5 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Vacaville | city | 0.875% | 5 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Benicia | city | 2.375% | 2 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Davis | city | 2% | 2 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Suisun City | city | 1.875% | 2 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Unincorporated Napa County | city | 0.5% | 2 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Unincorporated Sacramento County | city | 0.5% | 2 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| American Canyon | city | 0.5% | 1 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Dixon | city | 1.125% | 1 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Napa | city | 1.5% | 1 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Rio Vista | city | 1.875% | 1 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| West Sacramento | city | 2% | 1 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Winters | city | 1% | 1 of 21 ZIP codes | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
No total is shown because more than one city is listed. An address falls inside only one of each, so these shares are alternatives rather than a stack, and adding them all up would give a figure nobody pays.
What can change the tax you pay in Unincorporated Solano County, CA
- ZIP codes shared with a neighbour. 19 of Unincorporated Solano County's 21 ZIP codes are also reached by Fairfield, Vallejo, Unincorporated Yolo County and Vacaville and 11 other places, so an address in one of them can owe a neighbour's rate instead of Unincorporated Solano County's.
- What you are buying. Categories are not taxed alike. The calculator switches between general merchandise, prepared food and lodging, which are the categories we hold rates for here.
How Unincorporated Solano County compares with the rest of California
Unincorporated Solano County's ~9.25% is above what most ZIP codes carry in California. Of the state's 2,584 ZIP codes with a figure, 134 land on the same one, 1,648 carry a lower figure and 802 a higher one. Across California the combined rate runs from 7.25% to 11.25%. See every city in California.
| Combined rate | ZIP codes | Which is this city |
|---|---|---|
| ~7.75% | 535 | |
| ~8.75% | 373 | |
| ~9.75% | 346 | |
| ~7.25% | 282 | |
| ~8.25% | 189 | |
| ~9.25% | 134 | Unincorporated Solano County |
Counted from ZIP-code figures. A tilde marks a band where some ZIP codes cross a tax boundary and are counted at their most likely rate.
How sales tax is collected
The seller generally collects the tax from the buyer at the point of sale and passes it to the authorities that levied it. In most states it is added at the till rather than included in the advertised price. Read how sales tax works, including sourcing rules, online purchases and who is required to collect.
Rates last verified: Sep 4, 2026. This is when the source was last read, not when this page was last edited.
TaxAndTips provides informational estimates from published tax-rate data. Actual tax treatment can depend on the product or service, the exact address, the transaction, exemption status and applicable law. For official obligations, consult the taxing authority or a qualified tax professional.
Why you can rely on these figures
- Published rates
- State and local rates compiled from the tax authorities that levy them.
- Every figure sourced
- See the jurisdiction breakdown and the document each rate came from.
- No signup
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- Missing means missing
- Where a rate is not verified we say so instead of showing a short total.