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Counties → Wisconsin

Vernon County, Wisconsin

SDWIS compliance plate

Sheet WI123 · Vernon County 66 sys · 2,410 viol · #1917/3254

VIOL-SEVERE · HEALTH-MID · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 84.8% flagged
  • HEALTH-MID 20.0% health
  • RANK-MID #1917/3254
  • PHOTO-FINISH ±0.3 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-MID 66 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Vernon County ranks #1,917 of 3,254 counties by people served, and #51 of 71 counties in Wisconsin. See methodology · corpus placement.

Vernon County standing, lower-flagged corpus third

Flagged-system rate 84.8% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 20.0% is health-based share in the middle 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 #1,917 of 3,254 · #51 of 71 in Wisconsin.

Flagged-rate neighbourhood around Vernon County

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

0% 20% 40% 60% 80% 100% Bayfield · lowest Florence · near Kenosha · near Milwaukee · highest 52.1% 83.1% 84.1% 84.2% 84.6% 84.8% 95.3%

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

Water Systems

System Name Population Violations PFAS
Viroqua Waterworks 4,362 31 Clean
Westby Waterworks 2,400 13 -
Hillsboro Waterworks 1,325 93 -
Stoddard Waterworks 793 148 -
Coon Valley Waterworks 765 17 -
La Farge Waterworks 712 28 -
Viola Waterworks 667 74 -
Ontario Waterworks 554 77 -
DE Soto High-Middle School 403 185 -
Kickapoo Corners Family Restaurant 400 23 -
Readstown Waterworks 395 163 -
Chaseburg Waterworks Village Of 306 24 -
End of Trail Horse Camp 300 0 -
Genoa Waterworks 264 138 -
Edgewood Mobile Home Park 180 130 -
Trail Ridge Ranch - Cafeteria 175 9 -
Prairie View Elementary School 150 144 -
Kickapoo Kwik Stop 150 9 -
Treetop View LLC 121 0 -
Pikes Den 100 21 -
Mt Pisgah Wesleyan Church 100 54 -
WI DNR Wildcat Mt New Main Well 100 30 -
WI DNR Wildcat Mt Horse Camp 100 44 -
Southwest Prairie Lutheran 100 11 -
DE Soto Lutheran Church 100 10 -
Black Hawk Park-1989 Well 100 1 -
Bright Spot 100 0 -
Kickapoo Creekside 100 4 -
Bad Axe Lutheran Church 90 23 -
Kids at Play Child Care Center 85 173 -
Living Waters Bible Cp Dining Hall 75 0 -
Middle Coon Valley Lutheran Church 75 15 -
Mississippi Sports & Recreation 75 253 -
Black Hawk Park-1961 Well 75 9 -
North Coon Prairie Luth Church 70 5 -
Liberty Pole Methodist 65 51 -
Marell Courts and Rentals LLC 60 41 -
Lower Coon Valley Lutheran Church 50 33 -
New Hope United Methodist Church 50 0 -
Pine Crest Resort 1 41 5 -
Ohenrys Cmpgd Upper Well 40 24 -
Great River Road House 40 24 -
Rockton Bar 40 20 -
Township Bowl 30 5 -
Hickory Hill Motel 30 21 -
Vang Lutheran Church 30 20 -
Vernon Co 5 Rentz Memorial Pk - Esofea 30 23 -
Redmound Country Store 30 0 -
Genoa National Fish Hatchery Interpretive Center 30 4 -
Old Country Cheese 27 0 -

Compare beyond Wisconsin

Lower-flagged peers for Vernon County

Cross-state counties nearest Vernon County on flagged-system share (84.8%) and cumulative violation count (2,410). 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.