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Oakland, CA vs San Diego, CA: sales tax compared

Quick answer

Oakland, CA is the higher-tax metro at 10.25%, versus 7.75% in San Diego, CA. The 2.5% gap works out to $2.50 on a $100 purchase, $25.00 on $1,000 and $625.00 on a $25,000 purchase.

Rate gap
2.5%Percentage points, combined rate
Extra tax on $1,000
$25.00Paid in Oakland
Extra tax on $25,000
$625.00Vehicle-sized purchase

Oakland, CA

Alameda County

Components estimated

10.25%

Combined rate · ranked #3 of 94 covered metros

Sales tax rate composition for Oakland, CA: 7.25% California state (incl. mandatory local), 2.5% Alameda County transportation and health districts, 0.5% City of Oakland vacancy and general taxes, totalling 10.25%.
Jurisdiction breakdown for Oakland
LevelJurisdictionRate
stateCalifornia state (incl. mandatory local)7.25%
special districtAlameda County transportation and health districts2.5%
cityCity of Oakland vacancy and general taxes0.5%
Population
436,504
Median household income
$97,008

Alameda County carries one of the deepest district stacks in the country; the county and city split shown reconstructs the CDTFA published total.

Source: California Department of Tax and Fee Administration · rates as published for 2026-01-01

Full Oakland sales tax page

San Diego, CA

San Diego County

Verified against state table

7.75%

Combined rate · ranked #51 of 94 covered metros

Sales tax rate composition for San Diego, CA: 7.25% California state (incl. mandatory local), 0.5% San Diego County TransNet and countywide districts, totalling 7.75%.
Jurisdiction breakdown for San Diego
LevelJurisdictionRate
stateCalifornia state (incl. mandatory local)7.25%
special districtSan Diego County TransNet and countywide districts0.5%
Population
1,381,162
Median household income
$98,657

California's 7.25% base already bundles a 1.25% mandatory local share; only the district add-ons vary, and San Diego city carries fewer of them than most large California cities.

Source: California Department of Tax and Fee Administration · rates as published for 2026-01-01

Full San Diego sales tax page

How the difference is calculated

Same arithmetic the calculator on every page runs.

Each combined rate is the sum of its listed state, county, city and special-district components — no rounding is applied before the total. The dollar gap is the rate difference (2.5%) applied to the pre-tax amount: 2.5% of $1,000 is $25.00. Neither figure includes product-specific exemptions; groceries, clothing and digital goods can be taxed at a different rate or not at all, which is covered on each state's rules page.

Questions people ask

Direct answers to the questions this comparison raises.

Which has a higher sales tax rate, Oakland or San Diego?

Oakland, CA at 10.25%, versus 7.75% in San Diego, CA.

How much more sales tax would I pay in Oakland on a $1,000 purchase?

About $25.00 more, and roughly $625.00 more on a $25,000 vehicle-sized purchase.

Why do Oakland and San Diego have different rates?

The state share is 7.25% in CA and 7.25% in CA. The rest comes from county, city and special-district increments stacked on top, which are set locally and listed in full on this page.

Other comparisons involving Oakland.