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Learn more about the county-wide Reassessment and the current status of the project.
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Learn more about the Board of Commissioners and how they serve the citizens of Mercer County.
America250PA
2026 Kick-Off Events
Posted February 9, 2026
2026 IS HERE! Beginning January 16 in Philadelphia, America250PA will kick off the Semiquincentennial year with a two-week tour of all 67 counties—celebrating at courthouses and historic sites across Pennsylvania.
Mercer County's Kick-off Event is February 24 at 9:30 AM in the Courthouse Rotunda.
Will you be joining us in YOUR county? See more details and RSVP by clicking the link below!
Learn More & RSVP
View Flyer
Mercer County Reassessment Update
Posted March 27, 2026
Click Here For the Latest Reassessment Updates.
Call the Mercer County Tax Assessment Office at +1 724 662 7551 with questions.
Request for Proposals
4H Restroom Upgrades and Renovations
Posted April 6, 2026
The County of Mercer is requesting sealed written bids for the following projects:
- 4H Grounds Maintenance Building Restroom upgrades.
- Renovations to the restrooms at the 4H Grounds Show Arena building.
Bids will be opened at the public Commissioner’s meeting at 3:00 p.m., on April 30, 2026, in the Mercer County Courthouse, 125 S. Diamond Street, Mercer, PA 16137. It is anticipated that the bid will be awarded at the public Commissioner’s meeting scheduled for 3:00 p.m., on May 21, 2026, in the Mercer County Courthouse.
Deadline to apply is April 30, 2026 1:00 PM EST
Hard-to-recycle
April 14, 2026
The Lawrence-Mercer Recycling/Solid Waste Department offers a program for the collection of select hard-to-recycle items. Collection days are held the 2nd Tuesday of each month from 9 AM to 1 PM, and transition between locations in Mercer and Lawrence counties. This makes the program accessible to as many people as possible.
Click Here For More Details
Commissioners Meeting
April 16, 2026
3:00 pm in the Courthouse Assembly Room
Commissioners Meeting
April 30, 2026
3:00 pm in the Courthouse Assembly Room
April 2, 2026 Commissioners Meeting
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