Blair County, Pennsylvania — public water systems

50 active public water systems serve Blair County, reporting 101.6K people served.

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

Active systems

Population served

101.6K

Community systems

Groundwater share

86%

Water systems in Blair County

Active public water systems in Blair County, Pennsylvania
#	Water system	County	Population served	Type	Source
1	Altoona Water Authority	Blair	62,500	Community	Surface water
2	Hollidaysburg Muni Auth	Blair	8,523	Community	Purchased surface water
3	Tyrone Boro Water Auth	Blair	6,500	Community	Surface water
4	Roaring Spring Muni Water Auth	Blair	3,182	Community	Groundwater
5	Bellwood Boro Auth	Blair	3,162	Community	Purchased surface water
6	Martinsburg Muni Auth	Blair	3,160	Community	Groundwater
7	Blair Twp Water & Sewer Auth	Blair	2,550	Community	Purchased surface water
8	Greenfield Twp Muni Auth	Blair	2,500	Community	Groundwater
9	Duncansville Muni Water Auth	Blair	2,350	Community	Groundwater
10	Williamsburg Munic Auth	Blair	1,800	Community	Groundwater
11	Freedom Twp Water & Sewer	Blair	1,400	Community	Purchased surface water
12	Juniata Gap Elem Sch	Blair	620	Non-transient non-community	Groundwater
13	Hillcrest Communities Lp	Blair	350	Community	Groundwater
14	Southern Blair Senior Center	Blair	350	Transient non-community	Groundwater
15	Geeseytown Vol Fire Co	Blair	304	Transient non-community	Groundwater
16	Fredericksburg Water Assn	Blair	300	Community	Groundwater
17	Blair MHP	Blair	185	Community	Groundwater
18	Sproul Water Assn	Blair	180	Community	Groundwater
19	Henrietta Mutual Water Assn	Blair	165	Community	Groundwater
20	Fort Roberdeau	Blair	100	Transient non-community	Groundwater
21	Vfw Post No 8724	Blair	100	Transient non-community	Groundwater
22	Canoe Creek St Park	Blair	100	Transient non-community	Groundwater
23	Vail Water Assn	Blair	98	Community	Groundwater
24	Westwood Park Water Co	Blair	95	Community	Groundwater
25	East Sharpsburg Water Assn	Blair	95	Community	Groundwater
26	Curryville Water Auth	Blair	85	Community	Purchased groundwater
27	Ore Hill Water Assn	Blair	80	Community	Groundwater
28	Camp Anderson Boy Scouts	Blair	75	Transient non-community	Groundwater
29	Smith Corner Mennonite Ch	Blair	60	Transient non-community	Groundwater
30	Heidelberg Cc	Blair	60	Transient non-community	Groundwater
31	Mckee Tavern	Blair	50	Transient non-community	Groundwater
32	Bel Air Park Apts	Blair	44	Community	Groundwater
33	Leightys Mkt	Blair	40	Transient non-community	Groundwater
34	Ridge View Personal Care Home	Blair	35	Community	Groundwater
35	Apple Blossom Lane MHP	Blair	31	Community	Groundwater
36	Gearharts Meats	Blair	25	Transient non-community	Groundwater
37	Marzoni S Greenwood	Blair	25	Transient non-community	Groundwater
38	Wrights Orchard Sta Cpgrd	Blair	25	Transient non-community	Groundwater
39	Greenwood Steak House	Blair	25	Transient non-community	Groundwater
40	H2o To Go Save A Lot	Blair	25	Transient non-community	Purchased surface water
41	Conys Kitchen	Blair	25	Transient non-community	Groundwater
42	Sheetz Store 169 Mckee	Blair	25	Transient non-community	Groundwater
43	Sinking Valley Cc	Blair	25	Transient non-community	Groundwater
44	Scotch Valley Cc	Blair	25	Transient non-community	Groundwater
45	Sandys Cs LLC	Blair	25	Transient non-community	Groundwater
46	Relax Inn	Blair	25	Transient non-community	Groundwater
47	Best Way Pizza	Blair	25	Transient non-community	Groundwater
48	Milky Way Drive in	Blair	25	Transient non-community	Groundwater
49	Williamsburg C&Ma Church	Blair	25	Transient non-community	Groundwater
50	Getgo #3701	Blair	25	Transient non-community	Groundwater