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Los Alamos, Santa Barbara County, California Property Taxes

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Property Taxes in Los Alamos, California

  • Median Los Alamos, California effective property tax rate: 1.13%, significantly lower than the national median of 1.02%, and lower than the California state median of 1.21%.

  • Median Los Alamos, California home value: $493,093

  • Median annual Los Alamos, California tax bill: $5,569, higher by $3,169 than the national median property tax bill of $2,400.

How are property taxes in Santa Barbara calculated?

Property taxes in Los Alamos, California are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Los Alamos's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Los Alamos, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Los Alamos, Santa Barbara County, California Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.13%

Estimate Property Tax Bill

$5,572

$5,171

SAVE WITH OWNWELL

$774

Average Annual Tax Savings

How Does the Los Alamos Property Tax Calculator Work?

Use this Los Alamos property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Los Alamos's median effective tax rate of 1.13% — based on actual property records in Santa Barbara County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment system uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Los Alamos's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Los Alamos: rates range from 1.13% in 93440 to 1.13% in 93440, primarily due to differences in school district levies and local assessment districts.

If your estimate is higher than expected, Ownwell can appeal your Los Alamos assessment — you only pay if we save you money.

About Los Alamos Property Taxes

About Property Taxes in Los Alamos, Santa Barbara, CA

Los Alamos's median effective property tax rate of 1.13% is lower than the California state median of 1.21% and higher than the national median of 1.02%. This rate reflects the Santa Barbara County base levy combined with local school district levies and Mello-Roos Community Facility Districts that vary by subdivision throughout the city.

Property tax rates are not uniform across Los Alamos. Homeowners in the 93440 ZIP code carry a median effective rate of 1.13%, while those in the same ZIP code pay 1.13%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Santa Barbara County. Understanding which part of Los Alamos you live in can make a meaningful difference to your annual tax bill.

Los Alamos homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the December 1, 2026 deadline each year.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Los Alamos, Santa Barbara County, California

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Los Alamos's effective property tax rate to other cities in California and the median property tax rates in California and the U.S.

Property Tax Rates Across Los Alamos, Santa Barbara County, California

Source: Ownwell

1.06%

1.22%

1.38%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Los Alamos Tax Rate

1.13%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Santa Barbara County Tax Rate

1.13%

Median Effective California Tax Rate

1.21%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Los Alamos, Santa Barbara County, California

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
934401.10%1.11%1.13%1.13%1.14%

Source: Ownwell

Property Tax Assessment Values Across Los Alamos, Santa Barbara County, California

When examining property taxes in Los Alamos, California, understanding the distinction between "market value" and "assessed value" is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Santa Barbara County appraisal district estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In Santa Barbara County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of October.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. For example, the median home price in Los Alamos is $493,093, with tax bills ranging significantly across the county. 93440 has the highest median home price at $493,093.

Property Tax Assessment Values Across Los Alamos, Santa Barbara County, California

Source: Ownwell

$33,414

$1,096,558

$2,159,701

Median Los Alamos Market Value

$493,093

Median Santa Barbara County Market Value

$419,527

Median California Market Value

$427,605

Median United States Market Value

$235,294

Property Tax Assessment Values Across Los Alamos, Santa Barbara County, California

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
93440$103,300$296,000$493,093$662,964$794,643

Source: Ownwell

Property Tax Bills Across Los Alamos, Santa Barbara County, California

Property tax bills in Los Alamos are based on the assessed value of a home and the local tax rate set for Santa Barbara County. When a property’s assessed value rises, the tax bill can increase too, which means homeowners with higher-value homes often pay more. With a median home price of $493,093, property taxes can be a meaningful part of ownership costs, especially when bills range from $3,225 at the 25th percentile to $7,500 at the 75th percentile.

How does this affect homeowners? A higher assessed value can lead to a larger bill, even if the home’s market value does not fully reflect the assessment. That is why reviewing your property tax assessment matters.

Ownwell helps homeowners identify opportunities to save by appealing overassessments and finding exemptions that may lower their property tax bills. If your assessment is too high, Ownwell can help you challenge it and work toward a fairer tax bill.

Property Tax Bills Across Los Alamos, Santa Barbara County, California

Source: Ownwell

$318

$12,619

$24,919

Median Los Alamos Tax Bill

$5,569

Median Santa Barbara County Tax Bill

$5,164

Median California Tax Bill

$5,134

Median United States Tax Bill

$2,400

Property Tax Bills Across Los Alamos, Santa Barbara County, California

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
93440$1,115$3,225$5,569$7,500$9,403

Source: Ownwell

Don't miss the deadline to appeal!

Frequently Asked Property Tax Questions in Los Alamos, California

How are property taxes calculated in Los Alamos, California?
Property taxes in Los Alamos, California are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.
How do I appeal my property taxes in Los Alamos, California?
To appeal your property taxes in Los Alamos, California, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.
What property tax exemptions are available in Los Alamos, California?
Common property tax exemptions in Los Alamos, California include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.
When are property taxes due in Los Alamos, California?
Property tax deadlines in Los Alamos, California vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.
How can Ownwell help reduce my property taxes in Los Alamos, California?
Ownwell provides professional property tax appeal services in Los Alamos, California. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.