Median estimated market value for properties in this county.
AssessorSearch county dataContra Costa County, CA
Contra Costa County, CA assessor property search and records
Use this county guide to find official assessor property search resources, recorder and deed links, tax records, GIS parcel maps, permits, and property data insights for Contra Costa County, California. Search an address or APN, then jump to official county sources or property tax and value data.
Search a Contra Costa County address or APN
Official sources
Contra Costa County assessor, recorder, tax, and parcel map sources
Use this table to find the official county source for assessor property search, recorded documents, property tax, GIS parcel maps, permits, and zoning records.
| Record type | Official source | Notes |
|---|---|---|
| Assessed values | Contra Costa County Assessorwww.contracosta.ca.gov/191/Assessor |
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| Deeds and recorded documents | Contra Costa County Clerk-Recorder Property Document Searchwww.contracostavote.gov/recorder/ |
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| Property taxes | Contra Costa County Treasurer-Tax Collector Property Tax Lookuptaxcolp.cccttc.us |
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| GIS and parcel maps | Contra Costa County Maps & Property Information (CCMAP)www.contracosta.ca.gov/552/Maps-Property-Information |
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| Permits and building records | Contra Costa County ePermits Centeraca-prod.accela.com/ccc/Default.aspx |
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| Zoning and land use | Contra Costa County Property and Zoning Researchwww.contracosta.ca.gov/4843/Property-Zoning-Lookup |
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County data
Contra Costa County tax rates and property values
County and city-level rollups from AssessorSearch indexed property data. Use these values as directional context, then verify parcel-specific details with the official county sources above.
Median assessed value from county assessment records when available.
AssessorSearch county dataMedian annual property tax amount from indexed tax records when available.
AssessorSearch county dataMedian effective property tax rate calculated from annual tax and value fields.
AssessorSearch county dataCity property data
Top city rollups for estimated value, assessed value, property tax rate, and tax amount.
| City | Median estimated value | Median assessed value | Median effective property tax rate | Median tax amount |
|---|---|---|---|---|
| Concord | $760,429 | $429,844 | 0.81% | $5,710 |
| Antioch | $598,962 | $414,321 | 0.88% | $5,176 |
| Walnut Creek | $1,140,987 | $601,244 | 0.81% | $8,202 |
| San Ramon | $1,549,122 | $973,341 | 0.85% | $12,575 |
| Richmond | $598,355 | $343,406 | 1.02% | $6,482 |
| Brentwood | $787,860 | $612,360 | 1.06% | $8,317 |
| Danville | $1,895,201 | $1,107,533 | 0.76% | $13,273 |
| Pittsburg | $560,990 | $353,704 | 0.85% | $4,787 |
| Martinez | $783,147 | $479,208 | 0.86% | $6,561 |
| Oakley | $651,864 | $494,684 | 1.13% | $7,345 |
FAQ
Contra Costa County property records FAQ
Common questions about assessor, deed, tax, GIS, and permit records.
Where can I search Contra Costa County property records by address?
Use the official Contra Costa County Assessor to search Contra Costa County property records by address or parcel number. Use AssessorSearch property search as a free, easy-to-use option to search Contra Costa County by address or APN.
How do I find the owners of Contra Costa County properties?
Use the official Contra Costa County Assessor for county ownership and parcel records when owner names are available online. Use AssessorSearch property search as a free, easy-to-use option to look up Contra Costa County properties by address or APN.
Where can I verify assessed value in Contra Costa County?
Use the official Contra Costa County Assessor for assessed values, parcel details, exemptions, and property characteristics when those records are available online.
Where can I look up Contra Costa County property tax bills or payments?
Use the official Contra Costa County Treasurer-Tax Collector Property Tax Lookup for property tax bills, payment history, due dates, or tax collector records.
Where can I find deeds or recorded documents in Contra Costa County?
Use the official Contra Costa County Clerk-Recorder Property Document Search for deeds, mortgages, liens, plats, and other recorded documents. These records are usually separate from assessor property-value records.
Where can I view parcel maps or GIS data in Contra Costa County?
Use the official Contra Costa County Maps & Property Information (CCMAP) for parcel maps, map layers, boundaries, and GIS context. GIS maps should be treated as reference tools, not legal surveys.
Where can I search permits or zoning in Contra Costa County?
Use Contra Costa County ePermits Center for permits and Contra Costa County Property and Zoning Research for zoning or land-use records. City properties may require city-specific permit or planning portals.
Can I build a list of Contra Costa County property owners?
Use Affix by AssessorSearch for county property owner lists, filters, exports, skip tracing, and outreach workflows.
Related counties
More California property records
Use related county pages when researching nearby property records or comparing official source patterns.