Assessor
Find property assessments, parcel information and property tax exemptions.
Source checked October 14, 2026[1]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 public-inquiry access page. Read the disclaimer before choosing whether to continue; the search requires a dashed parcel number, and roll values omit later corrections to the original assessment roll.
Before you start
- Information & documents · Parcel-number format
- Use the parcel number from your tax bill in 000-000-000 format, including dashes. [6]
- Availability · Assessment-roll corrections
- The displayed roll values exclude corrections to the original assessment roll; verify updated values before relying on them. [7]
- Eligibility & access · Public-inquiry disclaimer
- Read the disclaimer before choosing whether to agree and make an inquiry. The county also prohibits resale of this information. [8]
County-linked interactive Assessor map-book resource.
Fees
Fees are quoted only when a source document supports the amount and conditions.
Check the official website for its current fee schedule. No fee should be assumed to be free.
Forms & documents
Official forms and document pages for this office’s services.
Sources & last checked3 source pages · 8 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] County property-tax officials directory (opens in a new tab)
California State Board of Equalization · Stanislaus County — assessor; official directory or office heading
Source reviewed October 14, 2026View supporting excerpt
50. Stanislaus Don H. Gaekle 209-525-6461 Mandip Dhillon 209-525-6398 Mary Hartsfield 209-525-4494 Donna Riley 209-525-6388 Gaines
- [2] County property-tax officials directory (opens in a new tab)
California State Board of Equalization · Stanislaus row — assessor telephone column
Source reviewed October 14, 2026View supporting excerpt
50. Stanislaus Don H. Gaekle 209-525-6461 Mandip Dhillon 209-525-6398 Mary Hartsfield 209-525-4494 Donna Riley 209-525-6388 Gaines
- [3] Stanislaus assessor — property records and provider resources (opens in a new tab)
Stanislaus County · Official department homepage — Assessor's Office - Stanislaus County
Source reviewed October 15, 2026View supporting excerpt
Assessor Value Notice Inquiry
- [4] Stanislaus — property query (opens in a new tab)
Stanislaus County official service / referred provider · County property lookup — Assessor public inquiry — disclaimer and APN requirements
Source reviewed October 15, 2026View supporting excerpt
Please read the disclaimer below. You must agree before making an inquiry.
- [5] Stanislaus — property query (opens in a new tab)
Stanislaus County official service / referred provider · County property lookup — Assessor map books
Source reviewed October 15, 2026View supporting excerpt
5. Assessor Mapbooks
- [6] Stanislaus — property query (opens in a new tab)
Stanislaus County official service / referred provider · County property lookup — Parcel-number format
Source reviewed October 15, 2026View supporting excerpt
You will be required to provide your parcel number, located on your tax bill, in the following format: 000-000-000 (Dashes must be included)
- [7] Stanislaus — property query (opens in a new tab)
Stanislaus County official service / referred provider · County property lookup — Assessment-roll corrections
Source reviewed October 15, 2026View supporting excerpt
The roll values provided do not include any corrected values from the original assessment roll.
- [8] Stanislaus — property query (opens in a new tab)
Stanislaus County official service / referred provider · County property lookup — Public-inquiry disclaimer
Source reviewed October 15, 2026View supporting excerpt
Please read the disclaimer below. You must agree before making an inquiry.