Sales tax in Unincorporated San Diego County, CA
The combined sales tax rate in Unincorporated San Diego County, CA is 7.75%, effective 2026-07-01.
Last verified
- ZIP codes
- 83 on file · 24 wholly inside the city limits
- Levied by
- California and Unincorporated Imperial County
How the combined rate in Unincorporated San Diego County, CA is made up
Each government below levies its own share. A seller collects them together at the till and passes each share to the authority that levied it.
| Jurisdiction | Type | Rate | Effective | Source |
|---|---|---|---|---|
| California | state | 7.25% | Jan 1, 2017 | California sales and use tax rates by jurisdiction |
| Unincorporated Imperial County | city | 0.5% | Jul 1, 2026 | California sales and use tax rates by jurisdiction |
| Combined rate | 7.75% | |||
ZIP codes in Unincorporated San Diego County
83 on file — 24 wholly inside the city limits and 59 crossing them. Each has its own page.
24 ZIP codes wholly inside Unincorporated San Diego County
Every address in these is inside the city limits, so all of them pay Unincorporated San Diego County's rate.
| ZIP code | Combined rate | Also reaches |
|---|---|---|
| 91901 | 7.75% | no other city |
| 91905 | 7.75% | no other city |
| 91906 | 7.75% | no other city |
| 91916 | 7.75% | no other city |
| 91917 | ~7.75% | no other city |
| 91931 | ~7.75% | no other city |
| 91934 | 7.75% | no other city |
| 91935 | 7.75% | no other city |
| 91948 | ~7.75% | no other city |
| 91962 | 7.75% | no other city |
| 91963 | 7.75% | no other city |
| 91977 | 7.75% | no other city |
| 91978 | 7.75% | no other city |
| 91980 | ~7.75% | no other city |
| 92004 | 7.75% | Unincorporated Imperial County |
| 92036 | 7.75% | no other city |
| 92055 | 7.75% | no other city |
| 92059 | 7.75% | no other city |
| 92060 | ~7.75% | no other city |
| 92061 | ~7.75% | no other city |
| 92066 | ~7.75% | no other city |
| 92070 | ~7.75% | no other city |
| 92086 | ~7.75% | no other city |
| 92179 | ~7.75% | no other city |
59 ZIP codes crossing the city line
Part of each of these lies outside Unincorporated San Diego 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 |
|---|---|---|
| 91902 | 7.75% | Chula Vista, National City and San Diego |
| 91910 | 8.75% | Chula Vista and National City |
| 91911 | 8.75% | Chula Vista and San Diego |
| 91913 | 8.75% | Chula Vista |
| 91914 | 8.75% | Chula Vista |
| 91915 | 8.75% | Chula Vista and San Diego |
| 91932 | 8.75% | Coronado, Imperial Beach and San Diego |
| 91941 | 7.75% | El Cajon, La Mesa and Lemon Grove |
| 91942 | 8.5% | La Mesa and San Diego |
| 91945 | 8.75% | Lemon Grove and San Diego |
| 91950 | 8.75% | Chula Vista, National City and San Diego |
| 92003 | 7.75% | Oceanside |
| 92008 | 7.75% | Carlsbad and Oceanside |
| 92009 | 7.75% | Carlsbad, Encinitas and San Marcos |
| 92010 | 7.75% | Carlsbad, Oceanside and Vista |
| 92014 | 7.75% | Del Mar, San Diego and Solana Beach |
| 92019 | 7.75% | El Cajon |
| 92020 | 8.25% | El Cajon and Santee |
| 92021 | 7.75% | El Cajon and Santee |
| 92024 | 7.75% | Carlsbad, Encinitas and San Marcos |
| 92025 | 8.75% | Escondido, Poway and San Diego |
| 92026 | 8.75% | Escondido |
| 92027 | 8.75% | Escondido and San Diego |
| 92028 | 7.75% | Oceanside, Temecula and Unincorporated Riverside County |
| 92029 | 8.75% | Escondido, San Diego and San Marcos |
| 92037 | 7.75% | San Diego |
| 92040 | 7.75% | Santee |
| 92054 | 8.25% | Carlsbad and Oceanside |
| 92056 | 8.25% | Oceanside |
| 92057 | 8.25% | Oceanside |
| 92058 | 7.75% | Oceanside |
| 92064 | 7.75% | Poway, San Diego and Santee |
| 92065 | 7.75% | Poway and San Diego |
| 92067 | 7.75% | San Diego |
| 92069 | 8.75% | San Marcos |
| 92071 | 7.75% | El Cajon, San Diego and Santee |
| 92075 | 8.75% | Encinitas, San Diego and Solana Beach |
| 92078 | 8.75% | Carlsbad, San Marcos and Vista |
| 92081 | 8.25% | Carlsbad, Oceanside and Vista |
| 92082 | 7.75% | Escondido |
| 92083 | 8.25% | Oceanside and Vista |
| 92084 | 8.25% | San Marcos and Vista |
| 92091 | 7.75% | Encinitas |
| 92101 | 7.75% | Coronado and San Diego |
| 92107 | 7.75% | San Diego |
| 92109 | 7.75% | San Diego |
| 92115 | 7.75% | La Mesa, Lemon Grove and San Diego |
| 92118 | 7.75% | Coronado, Imperial Beach and San Diego |
| 92119 | 7.75% | El Cajon and San Diego |
| 92120 | 7.75% | La Mesa and San Diego |
| 92126 | 7.75% | San Diego |
| 92127 | 7.75% | San Diego |
| 92131 | 7.75% | Poway and San Diego |
| 92136 | 7.75% | National City and San Diego |
| 92139 | 7.75% | National City and San Diego |
| 92154 | 7.75% | Chula Vista, Imperial Beach and San Diego |
| 92155 | 7.75% | Coronado and San Diego |
| 92562 | 8.75% | Murrieta, Unincorporated Riverside County and Wildomar |
| 92672 | 7.75% | Dana Point, San Clemente and Unincorporated Orange County |
What can change the tax you pay in Unincorporated San Diego County, CA
- ZIP codes shared with a neighbour. 60 of Unincorporated San Diego County's 83 ZIP codes are also reached by San Diego, Oceanside, Chula Vista and Carlsbad and 22 other places, so an address in one of them can owe a neighbour's rate instead of Unincorporated San Diego 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 San Diego County compares with the rest of California
Unincorporated San Diego County's 7.75% is the most common combined rate in California. Of the state's 2,584 ZIP codes with a figure, 535 land on the same one, 293 carry a lower figure and 1,756 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 | Unincorporated San Diego County |
| ~8.75% | 373 | |
| ~9.75% | 346 | |
| ~7.25% | 282 | |
| ~8.25% | 189 |
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.
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- Where a rate is not verified we say so instead of showing a short total.