Union County
Union County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 42,681. Its county seat is Lewisburg. The county was created on March 22, 1813, from part of Northumberland County. Its name is an allusion to the federal Union. Mifflinburg was established by legislation as the first county seat until it was moved to New Berlin in 1815. Lewisburg became county seat in 1855 and has remained so since. Union County comprises the Lewisburg, PA Micropolitan Statistical Area, which is also included in the Bloomsburg-Berwick-Sunbury, PA Combined Statistical Area. The county is part of the Central Pennsylvania region of the state.
Key Cities/Towns
Boroughs
- Hartleton
- Lewisburg (county seat)
- Mifflinburg
- New Berlin
Townships
- Buffalo
- East Buffalo
- Gregg
- Hartley
- Kelly
- Lewis
- Limestone
- Union
- West Buffalo
- White Deer
Megan's Law Statistics
(Copy from PA Megan's Law Database, click on Community Tools at top then the 3rd "Count of..." link and tally residents only)
| County Total | Lifetime | Out of State | Pre-SORNA SVP | SVDC | SVP | Ten-Year | T1 | T2 | T3 |
| 56 | 9 | 7 | 4 | 0 | 1 | 3 | 15 | 7 | 10 |
Last updated: 11/05/25
Registration Sites
(copy from https://www.meganslaw.psp.pa.gov/VerificationSites/VerificationSiteSearch)
- Union Co Courthouse / Jail,103 South Second Street, LEWISBURG PA 17837, 570-524-8711
County Parole/Probation Office Contact Information
Replace with relevant links:
Local Reentry Resources
If you know of any local reentry organizations in the county, please contact us at contact@parsol.org
- a
- b
SOAB Approved Treatment Providers
Reference SOAB website - Remove ones that don't apply
According to the SOAB website, there are no approved treatment providers in Union County. Please check the surrounding counties for a provider.
Other PFR-Specific Resources
State Representatives and Senators
Find your state representatives and senators here: palegis.us.
PARSOL Information
Region & Contact
- Region: Central
- Contact:
County Contact
- First Name Last Initial