Property tax in Marin County, California
The median property tax bill in Marin County, California is $10,000+ a year, which is at least 0.66% of the county's median home value of $1,507,300. The Census stops counting at $10,000: it reports only that the median bill here is $10,000 or more, so the true bill and rate are higher than shown. Because the figure is capped, it cannot be placed above or below the typical California county (0.7%) or the national median (0.81%). These are American Community Survey 5-year estimates (2024); your own bill depends on your home's assessed value and any exemptions.
Estimate the property tax on a home in Marin County
Enter a home's market value for a ballpark at Marin County's average effective rate of 0.66% (Census). The real bill depends on the home's assessed value, the millage where it sits and any exemptions.
Estimated property tax: $9,948 / year
Property tax in Marin County at a glance
| Measure | Value |
|---|---|
| Median annual property tax | $10,000+ |
| Median home value | $1,507,300 |
| Effective tax rate | at least 0.66% |
| Typical California county rate | 0.7% |
| National median county rate | 0.81% |
Effective rate = median real estate taxes paid divided by median home value. Source: U.S. Census Bureau, American Community Survey 5-year estimates.
How does Marin County compare in California?
Among California's 58 counties, Marin County has the 43rd highest effective property-tax rate: 42 rank higher and 15 rank lower. Nationally, it ranks 2021st of 3135 US counties by effective rate. Both ranks use the capped $10,000 bill, so the county's true rate, and its true rank, may be higher still. See every California county ranked.
How much do homeowners in Marin County actually pay?
The median is only the middle bill. Across Marin County's 66,616 owner-occupied homes, 91.6% pay $3,000 or more a year in property tax, 95.1% pay at least $2,000, and 1.2% pay under $800. Another 2% report paying no property tax at all, which usually means an exemption covers the whole bill.
| Annual bill | Homes | Share |
|---|---|---|
| Under $800 | 782 | 1.2% |
| $800 to $1,499 | 664 | 1% |
| $1,500 to $1,999 | 536 | 0.8% |
| $2,000 to $2,999 | 2,304 | 3.5% |
| $3,000 or more | 61,013 | 91.6% |
| No property tax paid | 1,317 | 2% |
Owners with a mortgage pay a median of $10,000+ and owners without one pay $7,650. At least one of those medians hits the Census cap, so the gap between them cannot be measured here. Census table B25103.
Property tax in counties next to Marin County
Marin County borders 4 counties.
| County | Effective rate | Median bill | Median home value |
|---|---|---|---|
| Contra Costa County, CA | 0.83% | $7,156 | $866,800 |
| Solano County, CA | 0.75% | $4,621 | $617,700 |
| San Francisco County, CA | 0.71% | $9,862 | $1,394,500 |
| Sonoma County, CA | 0.7% | $5,695 | $815,500 |
| Marin County, CA (this county) | at least 0.66% | $10,000+ | $1,507,300 |
How is a home assessed in Marin County?
California sets the assessment rules and Marin County applies them. How California assesses and reappraises homes.
Is there a homestead exemption in Marin County?
Yes. California's Homeowners' Exemption takes $7,000 off the assessed value of an owner-occupied home. File form BOE-266 with the county assessor by February 15 for the full exemption. That is the California rule, and it applies in Marin County. California's exemptions and relief programs in full.
When are property taxes due in Marin County?
Secured property tax is billed in two installments: the first is due November 1 (delinquent after December 10) and the second is due February 1 (delinquent after April 10), with a 10% penalty after each. Billed and collected by the county tax collector.
California splits the bill into 2 installments. That is the California rule. Marin County issues and collects the bill, so the dates printed on your statement are the ones that bind you.
How to appeal your Marin County property assessment
You contest the assessed value with the County Assessment Appeals Board. The filing deadline is typically July 2 to September 15 (or November 30 in some counties). That is the California rule; Marin County sets the exact dates and forms. The California appeal process step by step.
California rules from primary state sources, reviewed September 7, 2026; sources on the California page.
Work out your own numbers
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How much house can I afford?
Your income, debts and down payment against the 28/36 rule lenders actually use, with Marin County's tax rate to hand.
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Mortgage calculator
Monthly payment with principal, interest, tax and insurance, plus what an extra payment saves you.
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California income tax
Brackets, standard deduction and what California actually taxes.
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Sales tax in Marin County
The other local tax: combined state and local rate for this county.
Sources
- Median real estate taxes paid and median home value for Marin County, California: U.S. Census Bureau, American Community Survey 5-year estimates (2020-2024), tables B25103, B25077, B25102, B25119 and B25003; the five-year comparison uses the 2015-2019 estimates. Neighboring counties: Census county adjacency file.