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Counties → Minnesota

Clay County, Minnesota

SDWIS compliance plate

Sheet MN027 · Clay County 51 sys · 534 viol · #835/3254

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

  • VIOL-HIGH 52.9% flagged
  • HEALTH-MID 44.8% health
  • RANK-UPPER #835/3254
  • PHOTO-FINISH ±0.6 pp
  • PFAS-HIGH 100.0% detect
  • SRC-GW GW lead 96%
  • SYS-MID 51 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Dodge County (+ 0.6 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Clay County ranks #835 of 3,254 counties by people served, and #14 of 87 counties in Minnesota. See methodology · corpus placement.

Clay County standing, lower-flagged corpus third

Flagged-system rate 52.9% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 44.8% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #835 of 3,254 · #14 of 87 in Minnesota.

Flagged-rate neighbourhood around Clay County

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

0% 20% 40% 60% 80% 100% Mahnomen · lowest Pine · near Clay · this county Watonwan · highest 22.2% 51.7% 51.8% 52.1% 52.9% 53.6% 100%

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

Water Systems

System Name Population Violations PFAS
Moorhead 44,583 2 Detected
Dilworth 4,918 62 Detected
Barnesville 2,784 29 -
Hawley 2,267 24 -
Glyndon 1,386 9 -
Sabin 629 33 -
Ulen 500 2 -
The Pitchfork 250 0 -
Hitterdal 208 18 -
Spring Prairie Colony 200 6 -
Felton 178 49 -
Tom Brantner Memorial Camp BSA 150 0 -
Lysne Lutheran Church 135 30 -
John Bouton Housing Development 125 51 -
North Buffalo Lutheran Church 125 0 -
Buffalo River State Park 120 0 -
Hoff Lutheran Church 100 0 -
Rollag Lutheran Church 100 7 -
Lee Lake Campgrounds 100 0 -
Regional Science Center 100 7 -
Mainline Bar and Grill 100 7 -
Lee Veterinary Clinic 100 0 -
Vintage Gardens 100 6 -
Comstock 95 64 -
Georgetown 76 26 -
Dee's Drive Inn 75 0 -
Hegland Lutheran Church 75 6 -
Solem Lutheran Church 75 7 -
Park Lutheran Church 60 0 -
Romantic Moon Event Center 50 0 -
West Central Ag 42 7 -
Willow Creek Golf Course 40 0 -
Concordia Lutheran Church 40 7 -
Westminster Presbyterian Church 35 0 -
Gran Lutheran Church 35 6 -
Titan Machinery 34 40 -
Mac's, Inc. 30 0 -
Alderon Industries 30 6 -
Wagner Park 28 0 -
Maple River Grain and Agronomy LLC 25 7 -
Maple River Grain & Agronomy LLC-Kragnes 25 16 -
Buffalo River Speedway 25 0 -
Sandbeck Race Development 25 0 -
Agassiz Valley Grain LLC 25 0 -
Hawley Municipal Airport 25 0 -
Western Minnesota Steam 25 0 -
Moorhead Municipal Airport 25 0 -
Red River Weigh Station MNDOT 25 0 -
Casey Jo's Catering 25 0 -
Rustic Oaks 25 0 -

Compare beyond Minnesota

Lower-flagged peers for Clay County

Cross-state counties nearest Clay County on flagged-system share (52.9%) and cumulative violation count (534). 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.