Monmouth, IL · Knox County
Water quality in Monmouth, IL
4 community water systems are based in Monmouth, IL, collectively serving 12,734 people. See per-utility violations, contaminants, and lead service line status.
At a glance
- Community systems
- 4
- People served
- 13k
- Groundwater systems
- 100%
- 4 systems
- Surface water systems
- 0%
- 0 systems
Community water systems based in Monmouth
Systems whose EPA-filed administrative city is Monmouth, sorted by population served. Regional authorities that serve Monmouth but are based elsewhere are not listed here; check the ZIP lookup for a service-area-based answer.
- 1. MONMOUTH
Warren · PWSID IL1870150
8,902 served - 2. ABINGDON
Knox · PWSID IL0950050
3,275 served - 3. LITTLE SWAN LAKE SD
Warren · PWSID IL1875050
438 served - 4. ST AUGUSTINE
Knox · PWSID IL0950500
119 served