Contra Costa County, CA Property Records
Property records in Contra Costa, California provide official information about real estate ownership, transfers, assessed values, parcel details, liens, deeds, maps, and other recorded documents. These records are useful for homeowners, buyers, real estate professionals, researchers, and attorneys who need to verify ownership history, review property boundaries, confirm tax assessment information, or research recorded interests affecting a parcel.
Official Contra Costa property records can be accessed through Contra Costa County offices, including the Clerk-Recorder for recorded documents and the Assessor for parcel and valuation information. Users can begin with the county’s online resources for official property records, where they can find information about searching recorded documents, requesting copies, and accessing related services. For the most accurate and current information, users should rely on Contra Costa County’s official government records and contact the appropriate county office when certified copies or detailed property data are needed.
Contra Costa County, CA Property Records & Statistics
Contra Costa County is a high-cost Bay Area market. The median rent is $2,335, far above the state median of $1,260 and the national $840.25. The median home value of $739,900 is likewise well above California's $403,775 and the national $173,750.
The median property tax rate of 0.76% is above the state's 0.69% and the national 0.74%, so owners face a slightly higher rate on already high values.
Incomes are strong, with a median household income of $121,368 compared with $78,109.75 in California and $65,108 nationally. The unemployment rate of 3.66% is a little lower than the state's 3.72% and higher than the national 2.87%.
Renters occupy 27.98% of homes, below the state share of 33.49% but above the national 21.81%. That makes Contra Costa more owner-oriented than California overall, even with elevated prices. The figures describe an affluent suburban county where housing is expensive, incomes are high, and employment is close to the state norm. For buyers, the numbers show that entering the market takes substantial income, even though the county's incomes are among the strongest in the state. Contra Costa sits between the highest-priced Bay Area counties and the more affordable Central Valley, which helps explain its mix of owners and renters.
Median Rent
Median Property Tax Rate
Median Home Value
Median Income
Unemployment Rate
Renter Occupied Housing
Property Records, Assessments, and Valuations in Contra Costa
Contra Costa County property records cover tax assessments, recorded deeds and mortgages, property valuations, and foreclosure filings. The county has 387,473 total parcels, including 361,881 residential and 10,128 commercial parcels, and tax records reach 95.05% of the population for the 2025 assessment year. Recorded documents include 1,987,395 deeds and 1,767,057 mortgages, and valuation data is available for 323,390 properties, with the latest update on August 19, 2025.
| Key Data | Details |
|---|---|
| Total Parcels | 387,473 |
| Residential Parcels | 361,881 |
| Commercial Parcels | 10,128 |
| Tax Record Coverage | 95.05% |
| Assessment Year | 2025 |
| Deed Records | 1,987,395 |
| Mortgage Records | 1,767,057 |
| Properties with Valuation Data | 323,390 |
| Latest Valuation Update | August 19, 2025 |
| Notice of Trustee Sale Records | 722,157 |
Assignment and Release Records
Assignment and release records document what happens to a mortgage after it is recorded. An assignment shows that a mortgage was transferred from one lender or loan holder to another, and a release shows that the loan was satisfied and the lien removed from the property.
Contra Costa County has 1,466,925 assignment and release records on file. They include 188,074 assignment documents and 1,277,115 release documents, along with 1,736 other documents. Assignments were recorded from April 19, 1994 through September 3, 2025, and releases from January 3, 2005 through September 3, 2025.
These records help property researchers see who holds a mortgage, trace a loan between lenders, and confirm that earlier loans were paid off. Buyers, owners, title researchers, and lenders can use them to spot open liens before a sale or refinance and to review the loan history of a specific property.
How to Search Contra Costa County, CA Property Records
Contra Costa County property records are maintained by the Contra Costa County Clerk Recorder, which records deeds, mortgages, and other real estate documents. Ownership, transfer history, and recorded liens can be found through the office. Together these records cover the county's 387,473 parcels and 1,987,395 recorded deeds.
To search recorded documents online, use the Contra Costa County official records search, which lets you look up deeds and other filings. For office information, services, and instructions, visit the Contra Costa County Clerk Recorder website. Recording and request forms are available on the Contra Costa County Recorder forms page. The Contra Costa County eRecording information page explains electronic recording.
Assessment and map information is in the Contra Costa County Parcel Viewer, and tax bills and payments are handled through the Contra Costa County tax portal.
The office is located at 555 Escobar Street, Martinez, CA 94553 and can be reached at 925-335-7900 and is open Monday-Friday 8:00 AM to 5:00 PM for in-person requests. Staff can help if you cannot find a document online.
Online searches generally let you filter by name, document type, and recording date, and results typically show the recording date, document type, and the parties named in each filing. Opening a record lets you review the document details and request copies when needed.
Before you search, have the owner name, property address, or document type ready. Start with the most complete details you have, review the results, and open the document that matches your property. If a record does not appear, try variations of the name or a wider date range, or contact the office directly.
Contra Costa Registrar of Deeds
The Contra Costa County Probate Office is located at 555 Escobar Street, Martinez, CA, 94553 and can be reached at 925-335-7900. Office hours are Monday-Friday 8:00 AM – 5:00 PM. Records can be accessed through crsecurepayment.com or the official website contracostavote.gov.
Contra Costa County Clerk Recorder
Contra Costa County Property Records FAQ
How can I search Contra Costa County property records by address?
Start with the Contra Costa County official records search, where recorded documents can be searched by name, date, or document type, then match results to the property address. For help locating a specific parcel, call the Contra Costa County Clerk Recorder at 925-335-7900. Hours are Monday-Friday 8:00 AM to 5:00 PM. Having the street address and owner name ready makes searching faster.
How can I find property owners in Contra Costa County?
Owner names appear on recorded deeds, which you can search through the Contra Costa County official records search. Look up the property's most recent deed to see the current owner. The Contra Costa County Clerk Recorder at 555 Escobar Street, Martinez, CA 94553 can also help with in-person requests at 925-335-7900. Searching by owner name, date range, or document type often gives the best results.
How can I check a property's assessed value in Contra Costa County?
The Contra Costa County Parcel Viewer looks up an address or APN and shows property information drawn from Assessor data. Ownership details are not posted online, but the assessment roll is a public document available through the office. The Maps and Property Information page has more.
Where can I find Contra Costa County property tax bills and payment records?
The Treasurer-Tax Collector's Taxes in Contra Costa portal lets owners look up tax details, pay online, and review history. See the ways to pay secured property taxes for options, or call 925-608-9500 to pay current secured taxes by phone.
How can I find deeds and other recorded documents in Contra Costa County?
Deeds, mortgages, and other recorded documents are held by the Contra Costa County Clerk Recorder. Search online with the Contra Costa County official records search, or visit 555 Escobar Street, Martinez, CA 94553. Hours are Monday-Friday 8:00 AM to 5:00 PM. Call 925-335-7900 for questions about copies. Copies of recorded documents may be available for a fee; staff can explain how to request them.
Where can I access Contra Costa County parcel maps and GIS information?
Use the Contra Costa County Parcel Viewer to view parcels by address or APN. The county's Maps and Property Information page and its Property and Zoning Research page explain what else is available. Maps are for reference and do not replace a professional land survey.
How can I check permits and zoning information in Contra Costa County?
Zoning and permit questions in unincorporated areas can go to the county's Application and Permit Center at 925-655-2700; have the APN or address ready. The Property and Zoning Research page explains how to research zoning. Properties inside a city follow that city's rules.
How can I create a list of property owners in Contra Costa County?
There is no single downloadable owner list in the recorder's online tools; searches work property by property. For larger requests, call the Contra Costa County Clerk Recorder at 925-335-7900 to ask what record requests are possible, and review the Contra Costa County Clerk Recorder website for forms. Larger or recurring requests may require a written request, so ask staff how to proceed.