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San Mateo County, California

Seat: Redwood City · Major metro

Essentials
15
Total sources
37

San Mateo Superior Court runs two systems: MIDX (legacy, free name search no login) and Odyssey Public Portal (newer cases, also free, no login). Family law documents excluded from Odyssey online display. Main courthouse: 400 County Center, Redwood City. Records office by appointment only 8:30 AM–1:00 PM.

Court-clerk note
California
  • There is NO single statewide California court case search. Each Superior Court runs its own — you must search county by county. The "Find My Court" portal links to each county but does not search across them.
  • California has some of the strictest privacy laws in the country. Many police departments refuse name-based report searches, accepting only report-number requests. Always call the records division first and ask: do you release name-based searches to the public, or only report-number requests?
  • SB 1421 (2019) and SB 16 (2022) made certain police misconduct records public for the first time: sustained findings of dishonesty, sexual assault by an officer, and serious use-of-force incidents. Worth requesting if relevant.
  • Megan's Law site requires acknowledging a usage agreement before each search and prohibits copy/print. You can search by name, address, or zip but the data is harder to capture for your records.
  • In LA County, jurisdiction is split: LAPD covers only the City of LA. LA Sheriff (LASD) covers unincorporated areas plus 40+ contract cities like Compton, Lancaster, and Lakewood. Where the conduct happened determines which agency holds the report.
  • Marriage and divorce records are filed at the county Recorder/Clerk level, not at a state registry. CDPH only holds informational copies for marriages since 1949.
  • ASSESSORS — NO ONLINE OWNER NAME SEARCH: CA Gov Code 6254.21 prohibits county assessors from posting owner names online. AB 1785 (Dec 2024) further removed online APN search in many counties. All CA assessor sources are address/APN search only. For name-based ownership research, use the county RECORDER (deeds, liens, mortgages) — not the assessor.
  • LA COUNTY RECORDER — NO ONLINE ACCESS: Unlike most CA counties, LA County Registrar-Recorder provides NO online access to recorded documents (Gov Code 6254.21). All deed and lien research for LA County requires in-person visit to LAX, Van Nuys, Lancaster, or Norwalk offices, or phone request at (800) 201-8999. Call before visiting.
  • COURT NAME SEARCH FEES: Riverside Superior Court (epublic-access.riverside.courts.ca.gov) and San Bernardino Superior Court (cap.sb-court.org) charge search credits for online name lookups — not free. Case number searches remain free on both. Sacramento Superior Court criminal name search is free (no credits required).
Guided record check

Run this in order.

Start with the systems most likely to change your read of a person. Then cross-check custody, registries, and paper-trail sources before you go wider.

Case file · 06081
0 of 15 essentials reviewed
0% open
Deeper directory: 0/22 reviewed
01 · The docket layer

Start with courts

3 sources

Run county and statewide court portals first. Civil, criminal, family, and lower-court systems are often separate, so this is where most missed records happen.

Start with courts
3 entries
STATECourt
California Courts — Find My Court (county portal directory)
Portal that links to each of the 58 county Superior Court case-search sites. NOT a unified search.
Free
Open ↗
The closest thing California has to a statewide court lookup. Use it to find the right county portal, then search there. Frustrating but unavoidable: there is no statewide case index in California.
COUNTYCourt
San Mateo Superior Court — MIDX Case Index
San Mateo Superior Court MIDX case index. Civil, family, probate, small claims — name-based party search.
Free; no account required
Open ↗
San Mateo has one of the cleaner CA court portals — MIDX does true name search across all civil case types.
COUNTYCourt
San Mateo Superior Court — MIDX Records Index
Civil, criminal, family law, probate, and small claims case records for San Mateo County. Searchable by name, case number, or filing date. Index back to 1993; pre-1993 criminal cases require phone request.
Free search
Open ↗
San Mateo runs two portals — start with MIDX because it has the broadest historical index, then check Odyssey for newer cases with documents. Wildcard search uses asterisk (Generic Co* matches Generic Company, Inc.). Confidential, juvenile, adoption, and mental-health cases are excluded by court rule. Family-law documents are also excluded from remote display — index entries appear, but you must visit the Hall of Justice in Redwood City to view files.
02 · Current risk signals

Check custody and registries

4 sources

Use jail, corrections, and registry systems to catch records that do not show up in a normal court search.

Check custody and registries
4 entries
COUNTYSheriff / Jail
San Mateo County Sheriff — Inmate Locator
San Mateo County Sheriff inmate information. Old /inmate-information path dead. Corrections Division page links to inmate info. TLS issues noted on smcsheriff.com. Alternate official tool: smc-inmatelocator.org (also had TLS issues). Needs browser verification.
Free
Open ↗
Search by full or partial name, booking number, or date of birth. Returns booking date, charges (felony or misdemeanor), bail amount, court date, and housing facility. The peninsula sees a relatively low arrest rate compared to other Bay Area counties, so a hit here is more meaningful than in higher-volume jurisdictions. Note: ICE custody is NOT shown here — call the jail directly if you need that info.
COUNTYSheriff / Jail
San Mateo County Sheriff — Inmate Search
Current inmates at San Mateo County Jail (Maguire Correctional Facility, Redwood City). Name search for anyone currently in custody across the Peninsula.
Free
Open ↗
Current custody check for anywhere in San Mateo County. The jail is in Redwood City.
STATECorrections
California Department of Corrections — Inmate Locator (CDCR)
California Incarcerated Records & Information Search (CIRIS). CDCR migrated from apps.cdcr.ca.gov/ciris/ to ciris.mt.cdcr.ca.gov/ (Microsoft Azure hosting). Confirmed live 2026-05-03.
Free
Open ↗
CDCR runs CIRIS for current inmates only. If your subject was released or paroled, they will not appear here — try the relevant county jail or court records instead.
STATERegistry
California Megan's Law — Sex Offender Registry
Statewide registry. Search by name, address, zip, or map.
Free
Open ↗
Requires accepting a use agreement before each search. Cannot save, copy, or print results — California enforces this. Take screenshots if you need a record. Cross-check against the federal NSOPW for cross-state coverage.
03 · Context and corroboration

Pull the paper trail

5 sources

Recorder, assessor, prosecutor, records-request, and licensing sources help verify addresses, liens, ownership, agency records, and local context.

Pull the paper trail
5 entries
COUNTYRecorder
San Mateo County ACRE — Official Records Index
San Mateo County ACRE official records index. Deeds, liens, mortgages. Name-based search.
Free index; copies $5 first page + $1 each additional
Open ↗
Deed and lien history for San Mateo County — includes mortgage records useful for assessing financial status.
COUNTYAssessor
San Mateo County Assessor
California county assessor. Search by address or assessor parcel number (APN) only. CA Gov Code 6254.21 prohibits online owner name display by assessors statewide. AB 1785 (eff. Dec 2024) further restricts APN search in some counties. For name-based property research in California, use the county recorder instead.
Free
Open ↗
California assessors cannot show owner names online by law — so this isn't the right tool if you're trying to look someone up by name. Instead, go straight to the county recorder for California property research. The recorder indexes deeds and mortgages by name and is the primary tool for the GR audience in CA.
COUNTYAssessor
San Mateo County Assessor (ACRE)
Property assessment data, parcel maps, and assessed values for San Mateo County. Search by APN or address only — owner names not available online (CA Gov Code 6254.21).
Free
Open ↗
CA law prohibits the assessor from posting owner names online. For name-based property research in San Mateo County, use the ACRE grantor/grantee search instead — it is the same office (Mark Church serves as both Assessor and Clerk-Recorder). The advantage: one trip, one office, two records sets. Use this lookup once you already have an APN or address to confirm assessed value and ownership history.
COUNTYRecorder
San Mateo County Clerk-Recorder — Grantor/Grantee Search (ACRE)
Recorded documents — deeds, deeds of trust, liens, marriage licenses, fictitious business names, and other property records — for San Mateo County. Index searchable by name from 1985 to present. Document images NOT in database (CA law).
Free index; copies $5 first page, $1 each additional
Open ↗
This is the primary name-research tool for property and marriage records in San Mateo County — use it instead of the assessor for any name-based query. The 1985-onward depth catches the entire Bay Area tech-boom property cycle, which is exactly when the high-income peninsula real estate transactions you care about happened. Document images cannot be displayed online under CA law, so you will see the index entry but must order a copy or visit the office in Redwood City to see the actual deed.
STATEBusiness
California Secretary of State — Business Search (bizfile)
LLC, corporation, LP, LLP registrations: officers, agents, status, history
Free
Open ↗
Critical for finding businesses someone owns or operates. Search by entity or by individual name. CA business filings are particularly rich — show ownership chain, registered agents, statement-of-information history.
04 · Outside the county

Run the federal backstop

3 sources

Federal court and incarceration systems sit outside local portals. Run them before you decide the search is clean.

Run the federal backstop
3 entries
FEDERALCourt
PACER (Public Access to Court Electronic Records)
Federal District, Appeals, and Bankruptcy courts. Over 1 billion documents filed. $0.10/page (capped at $3.00/document); free if quarterly charges under $30. Account required for search. Confirmed live 2026-05-03.
Per-page fee, often waived under $30/quarter
Open ↗
PACER catches federal cases the state DOC and state courts will not. Account required, small per-search fees. Worth using for white-collar, federal drug, immigration, and bankruptcy.
FEDERALCorrections
Federal Bureau of Prisons Inmate Locator
All federal prison inmates, current and historical from 1982. Search by name (with race/sex/age filters) or inmate number. Note: search backend showed intermittent error during 2026-05-03 verification — likely temporary. If main tool is down, try https://www.bop.gov/mobile/find_inmate/byname.jsp as fallback.
Free
Open ↗
Free, fast, includes alias search. Use whenever the state DOC comes up empty and you suspect federal involvement.
FEDERALRegistry
National Sex Offender Public Website (NSOPW)
All 50 states aggregated, plus DC, US territories, and tribal nations. Search by name or location. DOJ-operated. Named after Dru Sjodin. Also links to abuse reporting resources. Confirmed live 2026-05-03.
Free
Open ↗
Cross-state coverage in one search. Run after the state-level registry to catch out-of-state moves.
Statute · California public records law

California's Public Records Act (Gov. Code § 7920 et seq., formerly § 6250) is broad on paper but slower in practice — many agencies take 30 to 60 days, some longer. The biggest structural limit: California has NO unified statewide court case search. Each county's Superior Court runs its own portal, with wildly different interfaces and access rules. SB 1421 (2019) and SB 16 (2022) opened up some previously-sealed police misconduct and use-of-force records, which is meaningful for vetting work in safety contexts.

Typical response · 14 to 60 days for most records-request agencies; instant for online court and registry lookups (where available)