Macoupin County, Illinois — public water systems

34 active public water systems serve Macoupin County, reporting 45.2K people served.

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

Active systems

Population served

45.2K

Community systems

Groundwater share

5.9%

Water systems in Macoupin County

Active public water systems in Macoupin County, Illinois
#	Water system	County	Population served	Type	Source
1	Carlinville	Macoupin	6,598	Community	Surface water
2	Staunton	Macoupin	5,756	Community	Surface water
3	Brighton	Macoupin	5,041	Community	Purchased surface water
4	Gillespie	Macoupin	3,737	Community	Surface water
5	Virden	Macoupin	3,274	Community	Purchased surface water
6	Mount Olive	Macoupin	2,193	Community	Purchased surface water
7	Girard	Macoupin	1,885	Community	Purchased surface water
8	Central Macoupin County Rwd	Macoupin	1,883	Community	Purchased surface water
9	Bunker Hill	Macoupin	1,760	Community	Purchased surface water
10	Benld	Macoupin	1,612	Community	Purchased surface water
11	Nilwood	Macoupin	1,394	Community	Purchased surface water
12	Otter Lake Water Commission	Macoupin	1,318	Community	Surface water
13	Lake Williamson Christian Center	Macoupin	1,250	Community	Purchased surface water
14	South Palmyra Water Commission	Macoupin	838	Community	Purchased surface water
15	Kaho Public Water District	Macoupin	785	Community	Purchased surface water
16	Scottville Rural Water Company, Inc..	Macoupin	695	Community	Purchased surface water
17	Palmyra	Macoupin	605	Community	Purchased surface water
18	Sawyerville	Macoupin	578	Community	Purchased surface water
19	Dorchester	Macoupin	562	Community	Purchased surface water
20	Shipman	Macoupin	541	Community	Purchased surface water
21	Wilsonville	Macoupin	536	Community	Purchased surface water
22	Medora	Macoupin	484	Community	Purchased surface water
23	White City	Macoupin	433	Community	Purchased surface water
24	Mount Clare	Macoupin	311	Community	Purchased surface water
25	Royal Lakes	Macoupin	235	Community	Purchased surface water
26	Modesto	Macoupin	182	Community	Purchased surface water
27	Hettick	Macoupin	174	Community	Purchased surface water
28	Chesterfield	Macoupin	170	Community	Purchased surface water
29	Eagarville	Macoupin	127	Community	Purchased surface water
30	Palmyra-Modesto Water Commission	Macoupin	110	Community	Surface water
31	Twice the Ice Carlinville	Macoupin	25	Transient non-community	Purchased groundwater
32	Polar Ice and Water - Gillespie	Macoupin	25	Transient non-community	Purchased surface water
33	Twice the Ice Staunton	Macoupin	25	Transient non-community	Purchased groundwater
34	Magic Wand Car Wash Benld	Macoupin	25	Transient non-community	Purchased surface water