Menard County, Illinois — public water systems
At a glance
10 active public water systems are filed under Menard County, Illinois in EPA's SDWIS records, together reporting 12,218 people served. The largest is Petersburg, which reports serving 4,725 people. 7 are community water systems serving people where they live; the other 3 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
10
Population served
12.2K
Community systems
7
Groundwater share
90%
How does Menard County compare with other Illinois counties?
Menard County has the 77th-most active public water systems among the 149 counties listed for active Illinois systems in EPA records; among the 104 with 3 or more systems, the median has 18. Its systems report 12,218 people served in total, the 77th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 1,222 people, about 62% below the Illinois average of 3,204. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Menard County's drinking water come from?
By primary water source, Menard County's active systems draw on groundwater (6, 60%), purchased groundwater (3, 30%) and surface water (1, 10%). Overall, 90% rely mainly on groundwater (including purchased groundwater) and 10% on surface water, compared with 82% and 18% across Illinois. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Petersburg, draws primarily on groundwater.
What kinds of water systems operate in Menard County?
Menard County's active systems break down as 7 community systems (70%) and 3 transient non-community systems (30%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (50%) and local government (50%).
Water systems in Menard County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Petersburg | Menard | 4,725 | Community | Groundwater |
| 2 | Athens | Menard | 4,575 | Community | Groundwater |
| 3 | Tallula | Menard | 868 | Community | Groundwater |
| 4 | Greenview | Menard | 858 | Community | Groundwater |
| 5 | Menard Rural Water Coop | Menard | 753 | Community | Purchased groundwater |
| 6 | Oakford | Menard | 234 | Community | Purchased groundwater |
| 7 | Old Salem Chautauqua | Menard | 128 | Community | Purchased groundwater |
| 8 | West of Wise Winery | Menard | 27 | Transient non-community | Groundwater |
| 9 | Lincoln Trail Family Campground | Menard | 25 | Transient non-community | Surface water |
| 10 | Hill Prarie Winery | Menard | 25 | Transient non-community | Groundwater |
Menard County water systems: frequently asked questions
How many public water systems are in Menard County, Illinois?
EPA's SDWIS records file 10 active public water systems under Menard County, Illinois: 7 community systems (70%) and 3 transient non-community systems (30%).
Who supplies drinking water in Menard County, IL?
The largest community water systems filed under Menard County are Petersburg (4,725 people served), Athens (4,575 people served) and Tallula (868 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Menard County's drinking water come from groundwater or surface water?
Of the 10 active public water systems in Menard County, 90% draw mainly on groundwater and 10% on surface water, counting purchased supplies. The largest system, Petersburg, uses groundwater.
Where can I find a water quality report for Menard County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 7 community systems are filed under Menard County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Menard County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Illinois water systems
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Menard County, Illinois”, https://aquacensus.com/water-systems/illinois/menard (data as of October 1, 2026).