Stanislaus County, CA Property Tax: $3,025/yr (2026)
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The effective property tax rate in Stanislaus County is 0.71% of assessed home value. On a home at the county median value of $426,600, that works out to about $3,029 per year, or $252 per month. Stanislaus County is located in central California, with Modesto as its county seat, and is home to approximately 552,250 residents.
About Stanislaus County
Stanislaus County covers approximately 1,496.2 square miles in California. The county is home to about 552,250 residents living in roughly 184,240 housing units, of which 58.4% are owner-occupied. The median household income is $79,661, and the median home was built in 1981.
The county seat is Modesto. Stanislaus County borders Alameda County, Calaveras County, Mariposa County, Merced County, San Joaquin County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in California
Property taxes in California are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in California offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Stanislaus County Assessor's office to learn which exemptions apply to your property and when to file.
Stanislaus County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Stanislaus County, CA | 0.71% | $426,600 | $3,029 |
| California state average | 0.71% | — | $3,029* |
| Alameda County | 0.76% | $1,057,400 | $8,061 |
| Calaveras County | 0.71% | $441,800 | $3,154 |
| Mariposa County | 0.68% | $358,000 | $2,437 |
| Merced County | 0.68% | $368,400 | $2,487 |
| San Joaquin County | 0.76% | $494,500 | $3,782 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Stanislaus County's median home value of $426,600. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Stanislaus County's property tax rate compare to the rest of California?
At 0.71%, Stanislaus County is equal to the California state average of 0.71%. On a home at the county median of $426,600, that means about $3,029 per year — versus $3,029 at the state average rate, a difference of $0 per year. Compared to the national average of 1.10%, Stanislaus County is below average.
What's a typical annual property tax bill in Stanislaus County?
For a home at the county median value of $426,600, the annual property tax in Stanislaus County is approximately $3,029 — or about $252 per month. For a home worth $639,900, expect around $4,543 per year. For a $853,200 home, approximately $6,058 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Stanislaus County property tax assessment?
Property assessment appeals in Stanislaus County are handled by the Stanislaus County Assessor's office in Modesto. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Stanislaus County?
California counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 0.71% shown here. Contact the Stanislaus County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File