County · Missouri
Knox County, Missouri: drinking water records
This overview covers 7 ZIP codes and 30 community water systems in Knox County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Magnolia-Eden Isles LA1103013 | 10,155 | 60 | 0 | 0 | 1 ppb |
| Magnolia-Greenleaves LA1103118 | 8,031 | 120 | 0 | 0 | 0.3 ppb |
| Magnolia-Resolve Whisperwood LA1103046 | 6,867 | 120 | 0 | 0 | 1 ppb |
| Magnolia-The Meadows LA1103106 | 4,701 | 90 | 0 | 0 | 0.9 ppb |
| Magnolia-Lakeshore Estates LA1103171 | 4,146 | 0 | 0 | 2 | 1 ppb |
| Knox County Public Water & Sewer Dist 1 MO2024313 | 3,947 | 359 | 1 | 0 | 1.3 ppb |
| Parks Utilities MS0520023 | 898 | 0 | 0 | 1 | 1.6 ppb |
| Magnolia Water Utilites - Cherrywood LA1103129 | 306 | 0 | 0 | 1 | 0 ppb |
| Magnolia-Rigolets Estates LA1103122 | 273 | 0 | 0 | 11 | 3 ppb |
| Magnolia-I59 MHP LA1103179 | 255 | 0 | 0 | 1 | 0 ppb |
| Magnolia-Homeland Height LA1103072 | 234 | 0 | 0 | 2 | 0.3 ppb |
| Magnolia-Port Louis Townhomes LA1103153 | 200 | 0 | 0 | 1 | 5 ppb |
| Magnolia-Pilot Street LA1103193 | 174 | 0 | 0 | 3 | 0 ppb |
| Magnolia-Beverly Heights LA1103178 | 100 | 0 | 0 | 3 | 0 ppb |
| Magnolia-Guste Island LA1103189 | 2,847 | 0 | 0 | 0 | 0 ppb |
| Magnolia-Monterey Subdivision LA1103148 | 1,356 | 0 | 0 | 0 | 1 ppb |
| Magnolia-Penn Mill Lakes LA1103185 | 1,152 | 0 | 0 | 0 | 0 ppb |
| Edina PWS MO2010238 | 1,014 | 0 | 0 | 0 | 6.9 ppb |
| Magnolia-Money Hills Estates LA1103164 | 825 | 0 | 0 | 0 | 0 ppb |
| Magnolia-River Park LA1103198 | 822 | 0 | 0 | 0 | 0 ppb |
| Magnolia-Brier Lake Utilities INC LA1103141 | 630 | 0 | 0 | 0 | 0 ppb |
| Magnolia-Grande Palms LA1103142 | 579 | 0 | 0 | 0 | 1 ppb |
| Magnolia-Oaklawn Trace LA1103201 | 480 | 0 | 0 | 0 | 0 ppb |
| Magnolia-Bleu Lake Hills LA1103132 | 420 | 0 | 0 | 0 | 1 ppb |
| Magnolia-Pruden Creek LA1103197 | 324 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Knox County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.