Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. Every office link was opened and checked against the office's own site between September 23, 2026 and October 2, 2026.
Napa County, California, has about 133,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Superior Court of California, County of Napa, and the file of each case, kept by the Superior Court clerk, is the public record of it. This guide says which court hears what, where to look a case up and who keeps the files.
This guide covers the courts, the records page, criminal cases, kinds of files, directory links, cities and common questions.
Related guides: Napa County public records, Napa County arrest records, Napa County warrants, Napa County inmate search, Napa County criminal records, California arrest records and California inmate search.
The Courts That Hear Cases from Napa County
In Napa County, the Superior Court of California, County of Napa hears every civil, criminal, family, probate, traffic and juvenile case.
Divorces go to the Superior Court's family law division, and the file stays with the Superior Court clerk.
The Superior Court clerk keeps the files, and a copy of anything in a file comes from that office, under the court's own rules rather than the California Public Records Act.
Looking Up a Case from Napa County
The court records page SearchSystems verified for the county is at napa.courts.ca.gov/research-records (page title: Research & Records | Superior Court of California | County of Napa), phone (707) 299-1140, which answered when SearchSystems opened it on September 23, 2026.
California has no single public index of every trial court case; each court's records are looked up through that court.
The California court page SearchSystems verified is at courts.ca.gov/policy-administration/public-records/who-where-how-vi....
What Reaches the Court from Napa County
Together, the six agencies in Napa County with all twelve months of 2025 on file reported 2,071 arrests to the FBI that year; the District Attorney decides which of those arrests become cases in the Superior Court of California, County of Napa.
The District Attorney's page SearchSystems verified is at napacounty.gov/2086/District-Attorney (page title: District Attorney | Napa County, CA), a site that blocks automated checks (HTTP 429), so open it in a browser.
The Kinds of Court Files
The court file is one record with several readers: a criminal case from the arrest to the sentence, a divorce from the petition to the judgment, a traffic ticket from the citation to the conviction the court reports to the California Department of Motor Vehicles, and an eviction or a lien on land.
The other Napa County guides take the kinds of file one at a time: Napa County criminal records, Napa County divorce records, Napa County traffic tickets, Napa County DUI and Napa County property records.
More Official Court Pages for Napa County
The SearchSystems directory, online since 1997, lists the official pages for Napa County and California. These court pages from its Napa County listing were opened again on October 2, 2026 and each one still answers:
- Case Lookup and Self Service (napa.courts.ca.gov)
- Public Records (courts.ca.gov)
Cities in Napa County
Wherever in the county a case arises, it is filed in the Superior Court of California, County of Napa.
SearchSystems has a guide to the offices of these cities in Napa County, with the 2024 Census Bureau population; a city with its own court records guide opens there:
- American Canyon (21,742)
- St. Helena (5,257)
Frequently Asked Questions
How do I look up a court case in Napa County?
The court records page SearchSystems verified for the county is at napa.courts.ca.gov/research-records, phone (707) 299-1140.
Which court hears felonies in Napa County?
The Superior Court of California, County of Napa, which hears every civil, criminal, family, probate, traffic and juvenile case.
Who keeps the court records in Napa County?
The Superior Court clerk. Copies come from that office under the court's own rules.
Is there a statewide court case search in California?
No. Each court's records are looked up through that court.
Is this the official Napa County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.