Mariposa County property tax
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Last verified: not yet verified. Due dates: not yet announced here.
We’ll publish dates, payment instructions and appeal information only after checking official sources. Until then, confirm the dates on your tax bill with your local tax office.
Browse California property tax information
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Official sources, verification dates and corrections
Property tax in Mariposa County: county, state and US
Compare Census estimates and read the sampling notes
Sources. Checked .
Census ACS 2020–2024 estimates for owner-occupied homes. The median annual tax paid is a historical survey estimate, not a quote for this year’s bill.
| Area | Median annual tax paid | Median home value | Effective rate estimate |
|---|---|---|---|
| Mariposa County | $2,377 | $387,900 | 0.61% |
| California | $5,124 | $734,700 | 0.70% |
| United States | $3,119 | $332,700 | 0.94% |
Mariposa County’s effective-rate point estimate is 0.08 percentage points below California’s and 0.32 percentage points below the US estimate.
Effective rate = median annual real estate taxes paid (B25103) ÷ median owner-occupied home value (B25077). State and US figures use their own Census medians, not averages of counties. These ratios are not rates set by law or medians of individual tax rates. Differences are not tests of statistical significance. Bounded or missing estimates stay unavailable.
Census sources, quotations and sampling uncertainty
Mariposa County
Annual taxes: $2,377 (90% margin of error: ±$161). Census table B25103_001E.
0500000US06043|2377|161|2752|257|1807|434
Home value: $387,900 (90% margin of error: ±$21,367). Census table B25077_001E.
0500000US06043|387900|21367
Estimated effective rate: 0.61%. Census source.
0500000US06043|2377|161|2752|257|1807|434
California
Annual taxes: $5,124 (90% margin of error: ±$17). Census table B25103_001E.
0400000US06|5124|17|5839|17|3825|19
Home value: $734,700 (90% margin of error: ±$1,307). Census table B25077_001E.
0400000US06|734700|1307
Estimated effective rate: 0.70%. Census source.
0400000US06|5124|17|5839|17|3825|19
United States
Annual taxes: $3,119 (90% margin of error: ±$4). Census table B25103_001E.
0100000US|3119|4|3489|4|2576|4
Home value: $332,700 (90% margin of error: ±$236). Census table B25077_001E.
0100000US|332700|236
Estimated effective rate: 0.94%. Census source.
0100000US|3119|4|3489|4|2576|4
Guides and related dates
Mariposa County property tax calculator
Estimate your bill, check exemptions and compare counties
Tools: Mariposa County, CA
Property tax calculator
$387,900 home value × 0.61% Census effective rate ≈ $2,377 per year. Uses the unrounded ratio; your actual bill may differ.
Estimate only. Not tax, legal or financial advice; confirm with your county.
Starts at the Census median for Mariposa County, CA.
Math and official Census sources
$2,377 median annual tax ÷ $387,900 median home value = 0.61%. Census ACS 2020–2024; a historical survey ratio, not a parcel tax rate.
0500000US06043|387900|21367
Census source. Last verified 2026-10-24.
0500000US06043|2377|161|2752|257|1807|434
Census source. Last verified 2026-10-24.
Full Mariposa County, CA calculator: exemptions, rates, dates and reminders
Prorated property tax calculator
Nearby counties and other due dates
Nearby counties
We haven’t verified a shared Census area for nearby county links.
Other counties in California due soon
Published payment dates in the next 60 days.
- Alameda County Due date:
- Amador County Due date:
- Butte County Due date:
- Calaveras County Due date:
Date sources and verification
Alameda County
Set by law. Verified October 24, 2026. Official date source
§ 2605 Rev. & Tax. Code … November 1 … Property owners … First installment of real property taxes and all taxes on personal property on the secured roll are due and payable.
Amador County
Set by law. Verified October 25, 2026. Official date source
§ 2605 Rev. & Tax. Code | November 1 | Property owners | First installment of real property taxes and all taxes on personal property on the secured roll are due and payable.
Butte County
Set by law. Verified October 24, 2026. Official date source
§ 2605 Rev. & Tax. Code November 1 Property owners First installment of real property taxes and all taxes on personal property on the secured roll are due and payable.
Calaveras County
Set by law. Verified October 25, 2026. Official date source
§ 2605 Rev. & Tax. Code | November 1 | Property owners | First installment of real property taxes and all taxes on personal property on the secured roll are due and payable.
Updated , from cited verification dates. Individual sources may have earlier checks.