St. Johns County, Florida — public water systems

57 active public water systems serve St. Johns County, reporting 222K people served.

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

Active systems

Population served

222K

Community systems

Groundwater share

100%

Water systems in St. Johns County

Active public water systems in St. Johns County, Florida
#	Water system	County	Population served	Type	Source
1	Sjcu-Cr214 Mainland WTP	St. Johns	66,953	Community	Groundwater
2	Sjcu-Northwest Utilities WTP	St. Johns	48,040	Community	Groundwater
3	St. Augustine Ws	St. Johns	43,069	Community	Groundwater
4	Sjcu-Ponte Vedra Ws	St. Johns	15,565	Community	Groundwater
5	Sjcu-Northeast Utilities Ws	St. Johns	14,790	Community	Purchased groundwater
6	Sjcu-Sawgrass Grid	St. Johns	13,023	Community	Groundwater
7	Jea: Ponte Vedra Grid	St. Johns	5,395	Community	Groundwater
8	Sjcu-North Beach Utilities	St. Johns	4,200	Community	Groundwater
9	Jea: Ponce De Leon Grid	St. Johns	2,303	Community	Groundwater
10	Sjcu-Hastings WTP	St. Johns	1,095	Community	Groundwater
11	Jea: Palm Valley Ws	St. Johns	965	Community	Purchased groundwater
12	Wildwood Water Company	St. Johns	858	Community	Groundwater
13	Church of Jc Lds - St. Johns Bldg	St. Johns	783	Transient non-community	Groundwater
14	Southwoods Elementary (Aka J-School)	St. Johns	660	Non-transient non-community	Groundwater
15	Sjcu-Eagle Creek Ws	St. Johns	655	Community	Groundwater
16	Sjcu-Fruit Cove Oaks Ws	St. Johns	485	Community	Groundwater
17	Homeowners Utilities Inc..	St. Johns	345	Community	Groundwater
18	Camachee Cove Yacht Harbor WTP	St. Johns	312	Community	Groundwater
19	Mill Creek Baptist Church	St. Johns	250	Transient non-community	Groundwater
20	Geneva Presbyterian Church	St. Johns	214	Transient non-community	Groundwater
21	Bayside Estates WTP	St. Johns	180	Community	Groundwater
22	Marywood Retreat ; Conf Center	St. Johns	150	Transient non-community	Groundwater
23	Florida Citrus Center #10	St. Johns	150	Transient non-community	Groundwater
24	Sjcu-Bartram Oaks WTP	St. Johns	150	Community	Groundwater
25	Buddy Boys Country Store	St. Johns	100	Transient non-community	Groundwater
26	4 Lakes Campground	St. Johns	100	Transient non-community	Groundwater
27	Hastings Labor Camp / Spuds	St. Johns	96	Transient non-community	Groundwater
28	St. Augustine Rv Park (Fka Shamrock)	St. Johns	96	Community	Groundwater
29	Victory Tabernacle	St. Johns	75	Transient non-community	Groundwater
30	Marywood Retreat - Camp St. John	St. Johns	75	Transient non-community	Groundwater
31	Faver-Dykes State Park	St. Johns	75	Transient non-community	Groundwater
32	Our Lady of Good Counsel	St. Johns	70	Transient non-community	Groundwater
33	Yu An Farms	St. Johns	41	Transient non-community	Groundwater
34	Elkton Academy	St. Johns	40	Non-transient non-community	Groundwater
35	Oak Haven Retirement Village	St. Johns	40	Community	Groundwater
36	Cypress Landing WTP	St. Johns	38	Community	Groundwater
37	Trinity Freedom Farm	St. Johns	30	Transient non-community	Groundwater
38	Freeman-Mcdonald Migrant Camp	St. Johns	29	Transient non-community	Groundwater
39	Pecan Kitchen WTP	St. Johns	25	Transient non-community	Groundwater
40	Buzzmart	St. Johns	25	Transient non-community	Groundwater
41	Vilano Beach Boat Ramp	St. Johns	25	Transient non-community	Groundwater
42	Molasses Junction	St. Johns	25	Transient non-community	Groundwater
43	South Logan Workers Housing	St. Johns	25	Transient non-community	Groundwater
44	Woodpecker'S Backyard Bbq	St. Johns	25	Transient non-community	Groundwater
45	Jim'S Place	St. Johns	25	Transient non-community	Groundwater
46	Weedman'S Grocery	St. Johns	25	Transient non-community	Groundwater
47	Mobile Stn/Sunshine Food Mart#1 (Fka Dq)	St. Johns	25	Transient non-community	Groundwater
48	Outback Crab Shack	St. Johns	25	Transient non-community	Groundwater
49	Weedman'S Express	St. Johns	25	Transient non-community	Groundwater
50	Fountain of Youth	St. Johns	25	Transient non-community	Groundwater