Chester County, Pennsylvania — public water systems

253 active public water systems serve Chester County, reporting 296.3K people served.

Dataset updated July 2026 . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

253

Population served

296.3K

Community systems

Groundwater share

93.7%

Water systems in Chester County

Active public water systems in Chester County, Pennsylvania
#	Water system	County	Population served	Type	Source
1	Pa American Royersford	Chester	49,508	Community	Surface water
2	Aqua Pa West Chester	Chester	48,600	Community	Surface water
3	Pa American Coatesville	Chester	36,960	Community	Surface water
4	Aqua Pa Uwchlan	Chester	35,518	Community	Purchased surface water
5	Phoenixville Water Dept	Chester	16,599	Community	Surface water
6	Downingtown Water Authority	Chester	9,900	Community	Surface water
7	Aqua Pa Friendship	Chester	8,800	Community	Groundwater
8	Aqua Pa Spring Run	Chester	8,151	Community	Purchased surface water
9	Kennett Square Mun Water Works	Chester	6,328	Community	Purchased surface water
10	Oxford Borough	Chester	5,280	Community	Purchased surface water
11	London Grove Twp Mun Auth	Chester	4,770	Community	Purchased surface water
12	Octorara Area School District	Chester	3,100	Non-transient non-community	Groundwater
13	Wawa Food Market 289	Chester	2,925	Transient non-community	Groundwater
14	North Coventry Water System	Chester	2,907	Community	Purchased surface water
15	Honey Brook Boro Water	Chester	2,892	Community	Groundwater
16	West Grove Borough	Chester	2,873	Community	Groundwater
17	Coatesville Veterans Adm Hosp	Chester	2,000	Community	Purchased surface water
18	Ojrsd Owen J Roberts Ms and Hs	Chester	1,750	Non-transient non-community	Groundwater
19	Elverson Water Company	Chester	1,641	Community	Groundwater
20	Marsh Creek State Park	Chester	1,630	Transient non-community	Groundwater
21	Aqua Pa Honeybrook	Chester	1,600	Community	Groundwater
22	Wawa Food Store #88	Chester	1,425	Transient non-community	Groundwater
23	Borough of Atglen	Chester	1,406	Community	Groundwater
24	Borough of Avondale	Chester	1,108	Community	Groundwater
25	Loch Nairn Farm	Chester	1,000	Transient non-community	Groundwater
26	Tel Hai Retirement Community	Chester	930	Community	Groundwater
27	Turkey Hill #168	Chester	900	Transient non-community	Groundwater
28	Westtown School	Chester	900	Community	Groundwater
29	Ridglea	Chester	900	Community	Groundwater
30	Ojrsd French Creek Elem Sch	Chester	700	Non-transient non-community	Groundwater
31	Aqua Pa East Pikeland	Chester	675	Community	Purchased surface water
32	Brandywine Wallace Elem	Chester	600	Non-transient non-community	Groundwater
33	Springton Manor Elementary	Chester	600	Non-transient non-community	Groundwater
34	Indian Run Village MHP	Chester	550	Community	Groundwater
35	Avon Grove Charter School	Chester	549	Non-transient non-community	Groundwater
36	Ojrsd E Vincent Elem School	Chester	538	Non-transient non-community	Groundwater
37	Ojrsd N Coventry Elem School	Chester	530	Non-transient non-community	Groundwater
38	Casd Kings Highway Elem Sch	Chester	521	Non-transient non-community	Groundwater
39	Willowdale Town Center	Chester	500	Non-transient non-community	Groundwater
40	Aqua Pa Superior Suburbia Ctr	Chester	500	Non-transient non-community	Groundwater
41	Chadds Ford Elementary School	Chester	500	Non-transient non-community	Groundwater
42	Chaddsford Winery	Chester	500	Transient non-community	Groundwater
43	Nottingham Manor M H Court	Chester	473	Community	Groundwater
44	Appleville Mobile Home Park	Chester	461	Community	Purchased surface water
45	Spring Run Estates WTP	Chester	450	Community	Groundwater
46	Longwood Gardens	Chester	440	Community	Purchased surface water
47	Camp Horseshoe	Chester	400	Transient non-community	Groundwater
48	Modern Mushroom Farms	Chester	400	Non-transient non-community	Groundwater
49	Coatesville Country Club	Chester	400	Transient non-community	Groundwater
50	Herr Foods	Chester	400	Non-transient non-community	Groundwater