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Counties → Minnesota

Cass County, Minnesota

SDWIS compliance plate

Sheet MN021 · Cass County 256 sys · 990 viol · #1576/3254

VIOL-HIGH · HEALTH-HIGH · RANK-MID · BELOW-PEER · PFAS-NONE · SRC-GW · SYS-LARGE · BOOK-MOST

  • VIOL-HIGH 37.5% flagged
  • HEALTH-HIGH 88.8% health
  • RANK-MID #1576/3254
  • BELOW-PEER 1.0 pp cleaner
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 100%
  • SYS-LARGE 256 systems
  • BOOK-MOST 6/7 fields

Nearest flagged-rate peer: Becker County (+ 1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Cass County ranks #1,576 of 3,254 counties by people served, and #36 of 87 counties in Minnesota. See methodology · corpus placement.

Cass County standing, lower-flagged corpus third

Flagged-system rate 37.5% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 88.8% is health-based share above the upper third (> 24.5%) . No UCMR5 tests in this extract for Cass County . Population served ranks #1,576 of 3,254 · #36 of 87 in Minnesota.

Flagged-rate neighbourhood around Cass County

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

0% 20% 40% 60% 80% 100% Mahnomen · lowest Kanabec · near Cass · this county Watonwan · highest 22.2% 35.1% 36.1% 36.4% 37.5% 38.5% 100%

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

Water Systems

System Name Population Violations PFAS
Walker 990 20 -
Pine River 939 27 -
Cass Lake Wayside Rest MNDOT 873 7 -
Cass Lake 691 6 -
Pillager 523 2 -
The One Stop 500 0 -
Y Mart 500 0 -
Stony Point Resort 400 0 -
Remer 369 19 -
Madden's Resort on Gull Lake 350 7 -
Cragun's On Pine Beach/Lodge 350 0 -
Hackensack 306 7 -
Anderson's South Shore Resort 300 32 -
St. Edward's Catholic Church 300 0 -
Nodak Lodge 300 7 -
Zorbaz 300 7 -
Quarterdeck Resort 300 0 -
Backus 267 0 -
Remer Junction 250 0 -
Cragun's on Pine Beach 250 20 -
Cass Lake Lodge 250 7 -
Causeway on Gull 250 21 -
Shores of Leech Lake 250 6 -
Anchorage Inn 250 0 -
64 Stop 250 7 -
Salem Lutheran Church 220 0 -
Corner Store 200 0 -
Godfrey's 200 7 -
Camp Birchwood 200 10 -
Palace Junction 200 0 -
Patrick's 180 0 -
The Docksider 180 0 -
Emmanuel Lutheran Church 170 7 -
Highland Resort 160 0 -
Tianna Country Club Inc. 150 14 -
Lost Lake Lodge 150 0 -
Big Rock Resort 150 7 -
Charlie's Up North 150 0 -
Stony Point Campground USFS 150 3 -
Horseshoe Bay Lodge Inc./C Merch LLC 150 7 -
Rager's Acres RV Park 150 0 -
Mc Ardles Resort 150 0 -
Sandy Beach Resort 150 0 -
The Village Inn 150 0 -
YMCA Camp Olson 150 28 -
Casino Assembly of God Church 140 7 -
Historic Camp Holiday 140 14 -
Mildred Bible Chapel 125 0 -
Evergreen Lodge 120 7 -
North Star Resort 120 0 -

Compare beyond Minnesota

Lower-flagged peers for Cass County

Cross-state counties nearest Cass County on flagged-system share (37.5%) and cumulative violation count (990). 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.