SearchSystems Editorial

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 on September 23, 2026.

About this guide

Mercer County, Pennsylvania, has about 108,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Mercer County Court of Common Pleas and the Magisterial District Courts, and the file of each case, kept by the Prothonotary for civil cases and divorces and the Clerk of Courts for criminal cases, 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, cities and common questions.

Related guides: Mercer County public records, Mercer County arrest records, Mercer County warrants, Mercer County inmate search, Mercer County criminal records, Pennsylvania arrest records and Pennsylvania inmate search.

The Courts That Hear Cases from Mercer County

In Mercer County, the Mercer County Court of Common Pleas hears felonies, civil cases, divorces, estates and juvenile matters.

Below it, the Magisterial District Courts take traffic tickets, summary offenses, small claims and preliminary hearings; Philadelphia has the Municipal Court instead.

Divorces go to the Court of Common Pleas, and the file stays with the Prothonotary.

The Prothonotary for civil cases and divorces and the Clerk of Courts for criminal cases keep the files, and a copy of anything in a file comes from that office, under the court's own rules rather than the Right-to-Know Law.

Looking Up a Case from Mercer County

For Mercer County, SearchSystems opened and checked the court records page for the county at mercercountypa.gov/ClerkOfCourts/default.htm (page title: Mercer County Clerk of Courts), phone 724-662-3800, 125 S. Diamond St, Ste 112 Mercer, PA 16137, Monday - Friday 8:30 am - 4:30 pm, which answered when SearchSystems opened it on September 23, 2026.

Statewide, UJS Web Portal is the Pennsylvania courts' free statewide docket search.

The Pennsylvania court page SearchSystems verified is at ujsportal.pacourts.us/casesearch.

What Reaches the Court from Mercer County

Together, the 14 agencies in Mercer County with all twelve months of 2024 on file reported 2,206 arrests to the FBI that year; the District Attorney decides which of those arrests become cases in the Mercer County Court of Common Pleas or the Magisterial District Courts.

The District Attorney's page SearchSystems verified is at mercercountypa.gov/districtattorney (page title: Mercer County District Attorney), phone 724 662 3800, 125 South Diamond St. Suite 209 Mercer, PA 16137-1295, Monday - Friday 8:30 am - 4:30 pm, which answered when SearchSystems opened it on September 23, 2026.

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 Pennsylvania Department of Transportation, and an eviction or a lien on land.

The other Mercer County guides take the kinds of file one at a time: Mercer County criminal records, Mercer County divorce records, Mercer County traffic tickets, Mercer County DUI and Mercer County property records.

Cities in Mercer County

Wherever in the county a case arises, it is filed in the Mercer County Court of Common Pleas or the Magisterial District Courts.

SearchSystems has a guide to the offices of these cities in Mercer County, with the 2024 Census Bureau population; a city with its own court records guide opens there:

Frequently Asked Questions

How do I look up a court case in Mercer County?

The court records page SearchSystems verified for the county is at mercercountypa.gov/ClerkOfCourts/default.htm, phone 724-662-3800. Statewide, UJS Web Portal is the Pennsylvania courts' free statewide docket search.

Which court hears felonies in Mercer County?

The Mercer County Court of Common Pleas, which hears felonies, civil cases, divorces, estates and juvenile matters. The Magisterial District Courts take traffic tickets, summary offenses, small claims and preliminary hearings; Philadelphia has the Municipal Court instead.

Who keeps the court records in Mercer County?

The Prothonotary for civil cases and divorces and the Clerk of Courts for criminal cases. Copies come from that office under the court's own rules.

Is there a statewide court case search in Pennsylvania?

Yes: UJS Web Portal, the Pennsylvania courts' free statewide docket search.

Is this the official Mercer 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.