Westmoreland County
349,324 people, served by 59 police agencies that report to the FBI. Below: how a case moves here, from arrest to court.
How a case moves here
Westmoreland County follows Pennsylvania law on arrests, release, and courts. These rules are the same in every county in the state; the full set covers prosecutors, defense, and jails too.
- Who decides release first
Outside Philadelphia, a magisterial district judge sets bail at the preliminary arraignment. In Philadelphia, an arraignment court magistrate appointed by the Municipal Court sets it; magistrates need not be lawyers if they complete a training program. Neither may set bail for murder or voluntary manslaughter; a Common Pleas judge does.
Pa.R.Crim.P. 51942 Pa.C.S. 1515(a)(4)42 Pa.C.S. 1123(a)(5)- Time to see a judge
A person arrested without a warrant must have a preliminary arraignment without unnecessary delay. The rule sets no hour limit. The U.S. Supreme Court's 48-hour rule for a probable cause finding applies as the federal floor.
Pa.R.Crim.P. 516(A)- Money bail
Money bail is allowed. The rules list five kinds of release, from release on recognizance to a money condition no larger than needed to ensure the person appears.
Pa.R.Crim.P. 524(C)- Courts
The Court of Common Pleas, organized in 60 judicial districts, tries felonies and misdemeanors. Magisterial district judges hear summary offenses, the lowest grade, and hold first arraignments and preliminary hearings. In Philadelphia, the Municipal Court tries crimes punishable by up to five years without a jury.
Unified Judicial System of Pennsylvania, Courts of Common Pleas42 Pa.C.S. 151542 Pa.C.S. 1123- Judges and magistrates
Common Pleas judges win a contested election for a 10-year term, then run in yes-or-no retention elections without party labels. Magisterial district judges are elected in contested elections to six-year terms and need not be lawyers. All other judges must be members of the bar.
Unified Judicial System of Pennsylvania, How Judges Are Elected
Read from the statutes and court rules cited, 2026-09-30. The prison board statute covers counties of the third to fifth class and those that opt in; Philadelphia and Allegheny run jails under other arrangements not read here.
What this county does differently
Nothing county-specific yet
Police agencies
- State Police: Westmoreland CountyState Police130,342 served
- PA0654300City41,600 served
- North Huntingdon Township Police DepartmentCity31,796 served
- Penn Township Police Department, Westmoreland CountyCity20,847 served
- Murrysville Police DepartmentMurrysville municipality20,672 served
- Greensburg Police DepartmentCity14,503 served
- New Kensington Police DepartmentNew Kensington city11,810 served
- Lower Burrell Police DepartmentLower Burrell city11,492 served
- Rostraver Township Police DepartmentRostraver township11,461 served
- Allegheny Township Police Department, Westmoreland CountyAllegheny township9,402 served
- Jeannette Police DepartmentJeannette city8,517 served
- Latrobe Police DepartmentLatrobe borough7,868 served
- Ligonier Valley Regional Police DepartmentCity7,558 served
- Washington Township Police Department, Westmoreland CountyWashington township6,794 served
- Monessen Police DepartmentMonessen city6,665 served
- PA0652000City5,955 served
- PA0651700City5,947 served
- Vandergrift Police DepartmentVandergrift borough5,504 served
- PA0652200City5,294 served
- Arnold Police DepartmentArnold city4,631 served
- Irwin Police DepartmentIrwin borough4,589 served
- Scottdale Police DepartmentScottdale borough4,306 served
- Mount Pleasant Police DepartmentCity4,127 served
- Manor Police DepartmentCity3,494 served
- Trafford Police DepartmentCity3,217 served
- PA0652600City2,891 served
- Delmont Police DepartmentDelmont borough2,623 served
- West Newton Police DepartmentWest Newton borough2,582 served
- Derry Police DepartmentDerry borough2,569 served
- Southwest Greensburg Police DepartmentSouthwest Greensburg borough2,153 served
- Upper Burrell Township Police DepartmentCity2,124 served
- South Greensburg Police DepartmentSouth Greensburg borough2,097 served
- PA0655500City2,082 served
- PA0651800City2,047 served
- St. Clair Township Police DepartmentCity1,953 served
- North Belle Vernon Police DepartmentNorth Belle Vernon borough1,818 served
- PA0652700City1,469 served
- PA0654200City1,238 served
- Avonmore Borough Police DepartmentCity879 served
- PA0653400City811 served
- Penn Police DepartmentCity683 served
- PA0653300City651 served
- PA0653900City577 served
- PA0655800City548 served
- PA0655100City495 served
- PA0653000City423 served
- PA0653600City397 served
- PA0656300City334 served
- Bureau of Forestry: Westmoreland CountyOther State Agency
- County Detective: Westmoreland CountyOther
- Forest Rangers: Forbes State Forest District 4Other State Agency
- Office of Attorney General Region 3: Westmoreland CountyOther State Agency
- PAUNI650XUniversity or college
- Pennsylvania State University: New KensingtonUniversity or College
- State Park Rangers: KeystoneOther State Agency
- State Park Rangers: Linn RunOther State Agency
- University of Pittsburgh: GreensburgUniversity or College
- Westmoreland County ParkOther
- Westmoreland County Sheriff's OfficeCounty
Agencies: FBI NIBRS master file 2025 batch headers; names from the FBI agency list, pulled 2026-09-29. An agency that serves several counties appears on each. Population served is the FBI's figure.
Crime and arrests
No figures yet