Brown County, South Dakota — public water systems

21 active public water systems serve Brown County, reporting 38.1K people served.

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

Active systems

Population served

38.1K

Community systems

Groundwater share

23.8%

Water systems in Brown County

Active public water systems in Brown County, South Dakota
#	Water system	County	Population served	Type	Source
1	Aberdeen	Brown	27,989	Community	Surface water
2	Brown-Day-Marshall Rws	Brown	5,673	Community	Groundwater
3	Groton	Brown	1,380	Community	Purchased surface water
4	Warner	Brown	485	Community	Purchased surface water
5	Lakeside Estates	Brown	460	Community	Purchased surface water
6	Country Village Park	Brown	340	Community	Purchased surface water
7	Prairiewood Property Owners	Brown	300	Community	Purchased surface water
8	Frederick	Brown	215	Community	Purchased surface water
9	Hecla	Brown	200	Community	Purchased groundwater
10	Jobee Acres	Brown	108	Community	Purchased surface water
11	Claremont	Brown	108	Community	Purchased groundwater
12	Pleasant Valley Estates	Brown	105	Community	Purchased surface water
13	Long Lake Colony	Brown	100	Community	Groundwater
14	Hutterville Colony South Dakota Inc.	Brown	90	Community	Groundwater
15	Northwood First Subdivision	Brown	90	Community	Purchased surface water
16	Westport Sanitary District	Brown	88	Community	Purchased surface water
17	Rolling Meadows	Brown	83	Community	Purchased surface water
18	The Meadows	Brown	80	Community	Purchased surface water
19	Richmond Heights Homeowners Associat	Brown	67	Community	Purchased surface water
20	Stratford	Brown	57	Community	Purchased surface water
21	Green Acres Association	Brown	55	Community	Purchased surface water