INDEPENDENT INFORMATION. INFORMED NEXT STEPS.Español
JAIL411Jail & prison information
for families.
PA / COUNTY GUIDEGuides for calls, visits, mail and money

Home / Pennsylvania / Mercer County

Mercer County jail information.
Pennsylvania. By facility.

One local jail holds people arrested in Mercer County: Mercer County Jail. Its guide has the address, phone, visiting, mail and money details families need.

All Pennsylvania counties Facility information, not live custody records.
Local adult custody

Mercer County Jail

55 Thompson Rd
Mercer, PA 16137
Call the jail
(724) 662-2700
Sheriff's office
724-662-6135
Location
Mercer, PA
Open the facility guide Directions

Housing and release status change. Confirm the person is still here before driving, mailing or depositing money.

The local jail

Open a facility for its address, phone and family rules.

Sheriff and police in Mercer County

18 listed agencies. The arresting agency is usually not the holding facility.

Mercer County Sheriffs Office

Sheriff's office
205 South Erie Street
Mercer, PA 16137
Directions
Non-emergency(724) 662-6135

Greenville / West Salem Police Department

City police
125 Main Street
Greenville, PA 16125
Directions
Public line(724) 588-4190

Hempfield Township Police Department

City police
278 South Mercer Street
Greenville, PA 16125
Directions
Public line(724) 588-7369

Hermitage City Police Department

City police
800 North Hermitage Road
Hermitage, PA 16148
Directions
Public line(724) 983-6780

Pymatuning Township Police Department

City police
256 Edgewood Drive Extension
Transfer, PA 16154
Directions
Public line(724) 646-1155
All 18 agencies

Practical information.
Before you visit, call or send.

Start with the general process. Then use the Mercer County Jail guide for the local details available there.

Visiting

Schedules, visitor approval, identification and arrival.

Read the guide

Phone calls

Calling accounts, approved providers and connection issues.

Read the guide

Mail & photos

Mailing addresses, permitted contents and delivery rules.

Read the guide

Money & commissary

Deposit methods, account types and fees to check.

Read the guide

Different custody systems.
Different places to start.

A Mercer County arrest usually means the county jail. A state sentence, a federal case or an immigration hold means a different system with its own locator and rules.

Understand jail and prison differences

Clear information.
Clear boundaries.

Jail411 is an independent information resource for families and friends. We are not a government agency, jail operator, law firm or live custody-records service.

Who holds someone arrested in Mercer County?

Usually Mercer County Jail, (724) 662-2700. The arresting agency books the person and the jail holds them; ask the jail what holds are on the booking before you act on anything.

Does posting bond mean the person comes home?

Not always. A probation or parole hold, another county\'s warrant, or an immigration detainer can keep someone in custody after bond is posted. Ask the jail what holds are on the booking, and ask the bondsman what happens if there are, before you pay.

What should I confirm before visiting?

Confirm the person\'s current facility, the visiting schedule, approval requirements, accepted identification and arrival instructions. Check the facility guide before you travel.

What if I find something that needs correcting?

Send us the page and the detail that needs attention. Do not send private booking documents or other sensitive personal information.

YOUR FAMILY REFERENCE

Plan the next step.

Practical guides for calls, visits, mail, money and release.

Open family guides
Jail411 source information preserved on 2026-09-25.Official sources appear alongside the relevant information.