Assessor
Find property assessments, parcel information and property tax exemptions.
Source checked October 12, 2026[1]www.contracosta.ca.gov
Opens this office’s own website. CountyWiki does not process applications, take payments or provide personal records.
Contact details & office locations ↓Online services & information
These links were found on official source pages. Each service is handled by the office.
County instructions for parcel data, Assessor maps and two query options. The county does not display property-owner names online. Counter copies and other services can have separate fees.
County-linked map with parcel details, Assessor map pages, aerial imagery and radius-search resources.
Fees
Fees are quoted only when a source document supports the amount and conditions.
| Service | Amount | Conditions & source |
|---|---|---|
| Assessor counter — map page | $3.00per map page | Counter service fee; mailing is an additional listed item. Online data is a separate access option.[8] |
| Assessor map mailing — additional charge | $2.50additional mailing charge | Listed as $2.50 additional for mailing. The page does not specify whether this is per map or per order; confirm the applicable total with the Assessor.[9] |
| Assessor counter — radius search | $50.00per search | Published public-counter radius-search fee; confirm the scope of your request.[10] |
| Assessor counter — property-information printout | $1.00per page | Published public-counter printout fee, separate from online data.[11] |
| Assessor counter — property characteristics | $7.50per parcel | Published public-counter property-characteristic fee.[12] |
These are individual fee items, not a quote for your total. Other charges or exemptions may apply; confirm the total with the office.
Forms & documents
Official forms and document pages for this office’s services.
Sources & last checked4 source pages · 12 citations
Sources were checked by an AI-assisted research process. A checked website does not mean every service or fee on it has been reviewed.
- [1] Contra Costa County — departments directory (opens in a new tab)
Contra Costa County · Department directory: Assessor
Source reviewed October 12, 2026View supporting excerpt
Assessor
- [2] Contra Costa County — assessor (opens in a new tab)
Contra Costa County · Forms/document link: Forms
Source reviewed October 12, 2026View supporting excerpt
Forms
- [3] County property-tax officials directory (opens in a new tab)
California State Board of Equalization · Contra Costa row — assessor telephone column
Source reviewed October 14, 2026View supporting excerpt
7. Contra Costa Gus S. Kramer 925-313-7400 Joanne Bohren 925-608-9300 Jami Morritt 925-655-2000 Dan M. Mierzwa 925-608-9500 Lieber
- [4] Contra Costa — property query (opens in a new tab)
Contra Costa County official service / referred provider · County property lookup — Maps and property information — CCMAP and ParcelQuest
Source reviewed October 15, 2026View supporting excerpt
The County’s portal for on-line property information is CCMAP.
- [5] Contra Costa — property query (opens in a new tab)
Contra Costa County official service / referred provider · County property lookup — Open CCMAP parcel map
Source reviewed October 15, 2026View supporting excerpt
The County’s portal for on-line property information is CCMAP.
- [6] Contra Costa — property query (opens in a new tab)
Contra Costa County official service / referred provider · County property lookup — Online ownership information
Source reviewed October 15, 2026View supporting excerpt
we do not display the names of any property owner on our website.
- [7] Contra Costa — property query (opens in a new tab)
Contra Costa County official service / referred provider · County property lookup — ParcelQuest searches
Source reviewed October 15, 2026View supporting excerpt
Some parcels, such as vacant land, do not have street addresses and an APN will be necessary to perform a search.
- [8] Contra Costa — property query (opens in a new tab)
Contra Costa County official service / referred provider · Property-information page — public service counter fee schedule; effective date not stated
Source reviewed October 15, 2026View supporting excerpt
Assessor Map Pages $3 each, $2.50 additional for mailing
- [9] Contra Costa — property query (opens in a new tab)
Contra Costa County official service / referred provider · Property-information page — public service counter fee schedule; effective date not stated
Source reviewed October 15, 2026View supporting excerpt
Assessor Map Pages $3 each, $2.50 additional for mailing
- [10] Contra Costa — property query (opens in a new tab)
Contra Costa County official service / referred provider · Property-information page — public service counter fee schedule; effective date not stated
Source reviewed October 15, 2026View supporting excerpt
Radius search $50
- [11] Contra Costa — property query (opens in a new tab)
Contra Costa County official service / referred provider · Property-information page — public service counter fee schedule; effective date not stated
Source reviewed October 15, 2026View supporting excerpt
Property information printouts $1 per page
- [12] Contra Costa — property query (opens in a new tab)
Contra Costa County official service / referred provider · Property-information page — public service counter fee schedule; effective date not stated
Source reviewed October 15, 2026View supporting excerpt
Property characteristics $7.50 per parcel