Chester County (Pennsylvania Dutch: Tscheschter Kaundi), colloquially referred to as Chesco, is a county in the Commonwealth of Pennsylvania. It is located in the Delaware Valley region, located in the southeastern part of the state. As of the 2020 census, the population was 545,823. increasing by 7.1% from 498,886 in 2010. The county seat is West Chester. The most populous of the county's 73 municipalities, including cities, boroughs, and townships,) is Tredyffrin Township. The most populous boroughs are West Chester and Phoenixville. Coatesville is the only municipality in the county that is classified as a city. The county is part of the Southeast region of the commonwealth.

Chester County was one of the three original Pennsylvania counties created by William Penn in 1682. It was named for Chester, England. It is part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan statistical area. Along with northern Delaware County and southern Montgomery County, eastern Chester County is home to many communities that comprise part of the Philadelphia Main Line western suburbs of Philadelphia.

As of 2020, the county had the highest median household income level in Pennsylvania, and the 35th-highest in the nation.

Key Cities/Towns

City

Coatesville

Boroughs
Atglen Avondale Downingtown Elverson Honey Brook Kennett Square Malvern Modena	Oxford Parkesburg Phoenixville South Coatesville Spring City West Chester (county seat) West Grove

Townships
Birmingham Caln Charlestown East Bradford East Brandywine East Caln East Coventry East Fallowfield East Goshen East Marlborough East Nantmeal East Nottingham East Pikeland East Vincent East Whiteland	Easttown Elk Franklin Highland Honey Brook Kennett London Britain London Grove Londonderry Lower Oxford New Garden New London Newlin North Coventry Penn	Pennsbury Pocopson Sadsbury Schuylkill South Coventry Thornbury Tredyffrin Upper Oxford Upper Uwchlan Uwchlan Valley Wallace Warwick West Bradford West Brandywine	West Caln West Fallowfield West Goshen West Marlborough West Nantmeal West Nottingham West Pikeland West Sadsbury West Vincent West Whiteland Westtown Willistown

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
377	76	38	27	0	6	15	108	66	41

Last updated: 09/08/25

Registration Sites

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

State Police Avondale, 2 Moxley Lane, Avondale PA 19311, 610-268-2022
State Police Embreeville, 997 Lieds Rd, Coatesville PA 19320, 610-486-6280

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 .

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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