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Counties → Wisconsin

Wood County, Wisconsin

SDWIS compliance plate

Sheet WI141 · Wood County 148 sys · 2,172 viol · #855/3254

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

  • VIOL-SEVERE 77.7% flagged
  • HEALTH-MID 24.0% health
  • RANK-UPPER #855/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-HIGH 50.0% detect
  • SRC-GW GW lead 100%
  • SYS-LARGE 148 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Wood County ranks #855 of 3,254 counties by people served, and #23 of 71 counties in Wisconsin. See methodology · corpus placement.

Wood County standing, lower-flagged corpus third

Flagged-system rate 77.7% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 24.0% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #855 of 3,254 · #23 of 71 in Wisconsin.

Flagged-rate neighbourhood around Wood County

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

0% 20% 40% 60% 80% 100% Bayfield · lowest Wood · this county Dodge · near Milwaukee · highest 52.1% 77.5% 77.7% 77.8% 77.8% 78.2% 95.3%

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

Water Systems

System Name Population Violations PFAS
Wis Rapids Water Works & Lighting Comm 20,000 29 Clean
Marshfield Utilities 18,815 18 Detected
Nekoosa Waterworks 2,394 25 -
Port Edwards Water Utility 1,866 130 -
Biron Water Utility 879 38 -
Pittsville Waterworks 800 147 -
Jammers 725 0 -
Holy Rosary Catholic Church 700 24 -
St Marys Catholic Church 600 0 -
Bulls Eye Golf Club 500 5 -
St Michaels Catholic Parish 500 4 -
Auburndale High School 498 96 -
Vesper Waterworks 491 19 -
Auburndale Elementary School 485 94 -
Trinity Ev Lutheran Church & School 430 142 -
St Kilian Catholic Church 350 14 -
Nasonville Elementary School 350 27 -
Grace Lutheran Church 300 2 -
Immanuel Lutheran Church 300 0 -
Milladore Waterworks 280 18 -
Dairy State Cheese 235 32 -
WI DOT Wayside 4 Richfield 232 0 -
Tri City Golf Course LLC 200 1 -
Riveredge 200 8 -
Savory 200 5 -
Rudolph Elementary School 186 21 -
Avacados LLC 150 6 -
Marshfield Country Club 150 2 -
St Johns Lutheran Church 150 0 -
Nasonville Dairy 145 12 -
YMCA Camp Alexander 3 Lester 100 0 -
YMCA Camp Alexander 1 Shower Bldg 100 1 -
Wiskerchen Cheese LLC 100 65 -
Lake Aire Supper Club 100 1 -
Marshfield Speedway 100 8 -
Bethany Lutheran Church 100 0 -
Express Lane 100 1 -
Dexter Co Park 7 Ep 3rd Loop Cmpgd 100 1 -
Dexter Co Park 6 Hp 2nd Loop Cmpgd 100 1 -
Dexter Co Park 10 & 12 Shower Bldg 100 2 -
Dexter Co Park 4 Beach House 100 1 -
Dexter Co Park 3 Hp 2nd Overflow 100 2 -
Dexter Co Park 2 1st Overflow 100 11 -
Dexter Co Park 1 Shelter Ep 100 0 -
First Presbyterian Church 100 20 -
Bucks N Berries Cafe 100 1 -
St Philips Catholic Church 100 0 -
Outpost Ranch Ranch 100 1 -
Rstore #4500 100 2 -
Dexter Co Park 13 Shower Bldg 100 0 -

Compare beyond Wisconsin

Lower-flagged peers for Wood County

Cross-state counties nearest Wood County on flagged-system share (77.7%) and cumulative violation count (2,172). 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.