Delaware County, colloquially referred to as Delco, is a county in the Commonwealth of Pennsylvania. With a population of 576,830 as of the 2020 census, it is the fifth-most populous county in Pennsylvania and the third-smallest in area. The county was created on September 26, 1789, from part of Chester County and named for the Delaware River. The county is part of the Southeast region of the commonwealth.

Delaware County borders Philadelphia, the nation's sixth-most populous city, to its northeast. It also is adjacent to the city-county of Philadelphia County and is included in the Philadelphia–Camden–Wilmington, PA–NJ–DE–MD metropolitan statistical area. Its county seat is Media.

Key Cities/Towns

City

Chester

Boroughs
	Folcroft Glenolden Lansdowne Marcus Hook Media (county seat) Millbourne Morton Norwood Parkside	Prospect Park Ridley Park Rose Valley Rutledge Sharon Hill Swarthmore Trainer Upland Yeadon

Townships
Aston Bethel Chadds Ford Chester Concord Darby Edgmont	Haverford Lower Chichester Marple Middletown Nether Providence Newtown Radnor	Ridley Springfield Thornbury Tinicum Upper Chichester Upper Darby Upper Providence

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
686	179	73	43	0	16	35	146	80	114

Last updated: 10/23/25

Registration Sites

(copy from https://www.meganslaw.psp.pa.gov/VerificationSites/VerificationSiteSearch)

Delaware Co Probation, 201 West Front Street, MEDIA PA 19063, Phone: 610-891-4591
State Police Media, 1342 West Baltimore Pike, Media PA 19063, Phone: 484-840-1000

County parole/probation office contact information

Replace with relevant links:

Delaware County Adult Probation, 201 W Front St, Media, PA 19063, Phone: 610-891-4591
State Parole Offices

Local Reentry Resources

If you know of any local reentry organizations in the county, please contact us at contact@parsol.org. Replace with relevant links:

a
b

SOAB Approved Treatment Providers

Reference SOAB website - Remove ones that don't apply

Other PFR-specific resources

State Representatives and Senators

Find your state representatives and senators here: palegis.us.

PARSOL Information

Region & Contact

Region: Southeast
Contact:

County Contact

First Name Last Initial