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Counties → Wisconsin

Lafayette County, Wisconsin

SDWIS compliance plate

Sheet WI065 · Lafayette County 40 sys · 1,291 viol · #2267/3254

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

  • VIOL-SEVERE 82.5% flagged
  • HEALTH-MID 27.0% health
  • RANK-LOWER #2267/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-MID 40 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Racine County (+ 0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Lafayette County ranks #2,267 of 3,254 counties by people served, and #60 of 71 counties in Wisconsin. See methodology · corpus placement.

Lafayette County standing, lower-flagged corpus third

Flagged-system rate 82.5% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 27.0% 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 #2,267 of 3,254 · #60 of 71 in Wisconsin.

Flagged-rate neighbourhood around Lafayette County

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

0% 20% 40% 60% 80% 100% Bayfield · lowest Lafayette · this county Oconto · near Milwaukee · highest 52.1% 81.8% 82.5% 82.6% 82.8% 83.1% 95.3%

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

Water Systems

System Name Population Violations PFAS
Darlington Waterworks 2,235 45 -
Shullsburg Waterworks 1,222 7 Clean
Belmont Waterworks 991 37 -
Benton Waterworks 976 73 -
Argyle Waterworks 823 16 -
Blanchardville Waterworks 810 82 -
Lake Joy Showers and Laundry 500 8 -
South Wayne Waterworks 478 278 -
WI DNR Yellowstone New Shower Building 285 9 -
WI DNR Yellowstone Campground 285 33 -
Gratiot Waterworks 224 305 -
Cole Acres Country Club 210 0 -
WI DNR Yellowstone East Fts Well 162 4 -
Backyard Campground 159 28 -
Cornerstone Lutheran Church 150 0 -
V & V Supremo - Chula Vista Cheese 130 0 -
Yellowstone Golf Course 110 0 -
WI DNR Yellowstone Dairy Restaurant 104 11 -
Yellowstone Lake Chalet 104 13 -
Roelli Cheese Company 102 16 -
Belmont Sales Barn Rls LLC 101 66 -
Reds Supper Club 100 10 -
Wiota Sanitary District 98 37 -
Cork Down Saloon and Campground 82 9 -
Pleasant View Primitive Methodist Church 60 0 -
Yellowstone Lutheran Church 60 4 -
Darlington Golf and Country Club 58 13 -
WI DNR Yellowstone Main Use Area 56 23 -
Community Evangelical Free Church 52 8 -
Bank of New Glarus - Gratiot 47 0 -
Lake Joy House and Campground 47 21 -
Rut-Rohs Fayette Saloon 46 3 -
Blackhawk Memorial Park 45 25 -
WI DNR Yellowstone Office 33 17 -
Darlington Ridge Farms 32 22 -
Lead Mine Tavern 32 10 -
WI DNR Yellowstone Below Dam 30 37 -
New Diggings General Store & Inn 27 3 -
Dollar General Argyle #20120 27 0 -
Lamont United Methodist Ch 25 18 -

Compare beyond Wisconsin

Lower-flagged peers for Lafayette County

Cross-state counties nearest Lafayette County on flagged-system share (82.5%) and cumulative violation count (1,291). 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.