Chester County (PA)
From The RadioReference Wiki
POLICE DISTRICTS
East
02 - Malvern 42 - East Whiteland 43 - Tredyffrin 54 - Willistown 55 - Easttown
CENTRAL
01 - West Chester (self-dispatched) 14 - Spring City 15 - Phoenixville 17 - North Coventry (Dispatched by Pottstown, Montgomery County; operates on encrypted talkgroup on Montgomery County radio system) 18 - East Coventry 21 - East Vincent 25 - West Vincent 26 - East Pikeland 27 - Schuylkill 32 - Upper Uwchlan 33 - Uwchlan 34 - West Pikeland 41 - West Whiteland 52 - West Goshen 65 - Birmingham 67 - Westtown-East Goshen 75 - West Chester University (self-dispatched) 78 - West Chester Area School District security
WEST
03 - Kennett Square 05 - West Grove 06 - Oxford 08 - Parkesburg 09 - South Coatesville 11 - Downingtown (also patrols East Caln) 12 - Honey Brook Borough 16 - Coatesville 28 - West Caln 29 - West Brandywine 30 - East Brandywine 36 - West Sadsbury 37 - Sadsbury 38 - Valley 39 - Caln 44 - West Fallowfield 47 - East Fallwofield 60 - New Garden 61 - East Marlborough 62 - Kennett Twp 68 - West Nottingham 76 - Lincoln University (campus police; unknown frequency) 77 - Coatesville VA Medical Center Police (self-dispatched) 79 - Coatesville Area School District Police
COUNTY-WIDE
81 - Pennsylvania Fish and Boat Commission 82 - Marsh Creek State Park Rangers 83 - Warwick County Park 84 - Hibernia County Park 85 - Nottingham County Park 86 - Springton Manor County Park
91 - Chester County Detectives 92 - Chester County District Attorney's Office (never used) 93 - Chester County Sheriff's Office 94 - Chester County Prison