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Counties → Minnesota

Otter Tail County, Minnesota

SDWIS compliance plate

Sheet MN111 · Otter Tail County 282 sys · 1,791 viol · #1028/3254

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

  • VIOL-HIGH 45.0% flagged
  • HEALTH-HIGH 81.9% health
  • RANK-UPPER #1028/3254
  • PHOTO-FINISH ±0.3 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-LARGE 282 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Benton County ( -0.3 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Otter Tail County ranks #1,028 of 3,254 counties by people served, and #18 of 87 counties in Minnesota. See methodology · corpus placement.

Otter Tail County standing, lower-flagged corpus third

Flagged-system rate 45.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 81.9% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,028 of 3,254 · #18 of 87 in Minnesota.

Flagged-rate neighbourhood around Otter Tail County

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

0% 20% 40% 60% 80% 100% Mahnomen · lowest Brown · near Benton · near Watonwan · highest 22.2% 42.9% 43.8% 44.7% 44.8% 45% 100%

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

Water Systems

System Name Population Violations PFAS
Fergus Falls 14,194 1 Clean
Perham 3,421 18 Clean
Pelican Rapids 2,577 18 -
New York Mills 1,287 15 -
Parkers Prairie 1,023 12 -
Battle Lake 918 15 -
Henning 851 9 -
Ottertail 694 0 -
Young Life Castaway Club 450 27 -
Lakeland General Store 400 0 -
Underwood 380 0 -
Vergas 358 4 -
Deer Creek 329 20 -
St. John's Catholic Church 300 0 -
Zion Lutheran Church 300 0 -
Fair Hills Resort 250 10 -
Silver Moon Lounge 250 0 -
Legacy Lakeside Resort 225 14 -
Otter Tail Lake Campground 215 23 -
Dalton 209 36 -
Delagoon Park & Recreation Area 200 11 -
Golden Eagle Vacationland 200 14 -
North Central Camp Cherith, Inc. 200 11 -
St. Lawrence Catholic Church 180 7 -
Spanky's Stone Hearth 175 14 -
Pelican Hills RV Park 170 8 -
Elizabeth 168 96 -
St. John's Lutheran Church 150 7 -
Ten Mile Lake Resort, Inc. 150 7 -
Wee Villa Resort 150 7 -
St. John's Lutheran Church 150 0 -
Lake Lizzie Shores Resort 150 14 -
Zion Lutheran Church North Effington 150 0 -
Hansel Lake Rest Area MNDOT 150 0 -
Zion Lutheran Church 150 0 -
Immanual Lutheran Church 150 7 -
Zorbaz of Pelican Lake, Inc. 150 7 -
Swan Lake Resort 150 15 -
Lakes Inn at Dunvilla 150 0 -
St. James Catholic Church 140 0 -
North Immanuel Lutheran Church 130 0 -
Esther Lutheran Church 130 0 -
Sacred Heart Catholic Church 130 7 -
Grue Lutheran Church 125 0 -
Spirit of Hope Lutheran Church 125 0 -
Stavanger Lutheran Church 125 7 -
Central Lutheran Church 125 7 -
Glendalough State Park 125 0 -
Grace Lutheran Church 120 7 -
Camp Joy Bible Camp 120 0 -

Compare beyond Minnesota

Lower-flagged peers for Otter Tail County

Cross-state counties nearest Otter Tail County on flagged-system share (45.0%) and cumulative violation count (1,791). 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.