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Counties → Missouri

St. Francois County, Missouri

SDWIS compliance plate

Sheet MO187 · St. Francois County 43 sys · 5,269 viol · #901/3254

VIOL-SEVERE · HEALTH-HIGH · RANK-UPPER · PHOTO-FINISH · PFAS-LOW · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 97.7% flagged
  • HEALTH-HIGH 54.7% health
  • RANK-UPPER #901/3254
  • PHOTO-FINISH ±0.2 pp
  • PFAS-LOW 16.7% detect
  • SRC-GW GW lead 98%
  • SYS-MID 43 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Lincoln County (+ 0.2 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, St. Francois County ranks #901 of 3,254 counties by people served, and #20 of 115 counties in Missouri. See methodology · corpus placement.

St. Francois County standing, mid-flagged corpus third

Flagged-system rate 97.7% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 54.7% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 16.7% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #901 of 3,254 · #20 of 115 in Missouri.

Flagged-rate neighbourhood around St. Francois County

Lowest/highest poles plus in-state counties nearest St. Francois County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Shannon · lowest Lawrence · near St. Francois · this county Mercer · highest 69.6% 96.7% 97.2% 97.4% 97.7% 97.9% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Farmington PWS 18,217 551 Detected
Park Hills PWS 8,587 121 Clean
Desloge PWS 5,034 8 Clean
Bonne Terre PWS 3,537 521 Clean
Bonne Terre Prison 3,500 32 Clean
Farmington Correctional Center 3,500 390 Clean
Terre Du Lac 3,200 456 -
Bismarck PWS 1,470 63 -
Leadwood PWS 1,192 269 -
Roseners Motel 956 129 -
St Francois County PWSD 2 850 97 -
S F Scout Ranch 800 81 -
St Francois State Park 550 83 -
Pilot Knob Rural WD 1 Doe Run Area 507 144 -
Harvest Christian Center 500 23 -
Hunters Ridge Subd 441 184 -
Vca Properties LLC 400 165 -
Eagle Estates 366 39 -
Sherrys 212 157 -
Walnut Grove MHP 210 241 -
St Francois County PWSD 1 140 31 -
Clubb Villa Senior Living 110 142 -
Stepping Stones Preschool & Daycare 94 72 -
Connections Church 90 43 -
Stone Park Resort 80 20 -
Farmington Assisted Living Center LLC 75 96 -
Terrace of French Village 75 69 -
Farmington Amvets Post 113 50 294 -
Dollar General #18611 French Village 50 1 -
Roys #7 50 148 -
Big River Hills LLC 48 32 -
Dog House Saloon 35 95 -
Sunshine Apartments 30 50 -
Mrs Thrashers Advanced Learning Center 26 22 -
New Hope Residential Care Inc 25 27 -
St Joe State Park 25 7 -
Kidz World Daycare & Preschool 25 127 -
St Francois Country Club Inc 25 235 -
Cornerstone Event Center LLC 25 0 -
Farmington Mennonite Church 25 1 -
Dollar General #21961 Farmington 25 1 -
Dollar General #22043 Bonne Terre 25 1 -
Dollar General #23111 Farmington 25 1 -

Compare beyond Missouri

Mid-flagged peers for St. Francois County

Cross-state counties nearest St. Francois County on flagged-system share (97.7%) and cumulative violation count (5,269). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.