Outdoor Lighting in Chester County, PA (2026)

2 rules for unincorporated Chester County, Pennsylvania.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Chester County. If you live within an incorporated city, that city's own rules apply — see the city list below.

Dark Sky Rules

Chester County has no countywide dark-sky ordinance, but the county Planning Commission promotes model outdoor-lighting standards, and many Chester County townships have adopted dark-sky ordinances to limit skyglow and glare.

Dark-Sky Lighting Is Adopted Township by Township

Some Restrictions

Full ordinance details →Official source ↗

Light Trespass

Chester County does not regulate light spilling onto a neighbor's property. Light-trespass limits are set in municipal lighting ordinances, where many Chester County townships cap illumination at property lines using shielded, full-cutoff fixtures.

Light Trespass Complaints Go to Your Township

Some Restrictions

Full ordinance details →Official source ↗

All Chester County ordinances

See every category we cover for Chester County — parking, noise, fences, fires, animals, pools, and more.

Chester County Ordinance Hub →