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Counties → Wisconsin

Door County, Wisconsin

SDWIS compliance plate

Sheet WI029 · Door County 454 sys · 19,310 viol · #1229/3254

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

  • VIOL-SEVERE 94.1% flagged
  • HEALTH-LOW 15.1% health
  • RANK-UPPER #1229/3254
  • PHOTO-FINISH ±0.3 pp
  • PFAS-HIGH 100.0% detect
  • SRC-GW GW lead 100%
  • SYS-LARGE 454 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Door County ranks #1,229 of 3,254 counties by people served, and #32 of 71 counties in Wisconsin. See methodology · corpus placement.

Door County standing, mid-flagged corpus third

Flagged-system rate 94.1% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 15.1% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,229 of 3,254 · #32 of 71 in Wisconsin.

Flagged-rate neighbourhood around Door County

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

0% 20% 40% 60% 80% 100% Bayfield · lowest Calumet · near Door · this county 52.1% 89.5% 91.8% 93.8% 94.1% 95.3%

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

Water Systems

System Name Population Violations PFAS
Sturgeon Bay Waterworks 9,700 12 Detected
Southern Door Sch Dist 1,350 8 -
Sister Bay Waterworks 1,000 9 -
Sevastopol High Sch 715 21 -
Gibraltar High School 628 101 -
Loft 308 3 -
Culvers Town & Country C Store 265 96 -
North Haven Pool Well 223 3 -
Wild Tomato 215 82 -
WI DNR Pen Concession 206 26 -
St Paul Cath Ch 206 6 -
Lautenbachs Orchard Country Winery & Market 204 36 -
Shepherd of the Bay Lutheran 203 33 -
WI DNR Pen Tennison Bay 202 1 -
WI DNR Pen 600 Site Well 202 27 -
WI DNR Pen 700 Site Well 202 17 -
Door Co Y M C a North 190 32 -
Doorway to Learning 170 17 -
Baileys Grove Cmpgd 152 39 -
Oaks The 135 283 -
Heritage Lake Resort 130 91 -
Peninsula Players 128 46 -
St Marys of the Lake Ch 127 25 -
WI DNR Pot Shower Bldg 125 19 -
Maplewood Sanitary Dist 1 122 45 -
Macready Artisan Bread Co 114 101 -
Anchorage Cove Condos East Parking 113 57 -
On Deck Clothing Co 110 12 -
Tranquil Timbers Camping Retreat/Store 110 78 -
P C Junction 110 184 -
WI DNR Pen Welckers Pt 107 15 -
Florian II Beachfront Inn 106 64 -
Blue Horse Beach Cafe 105 42 -
Julies Park Cafe 105 45 -
Summer Kitchen Restr 105 108 -
Waterbury Inn 105 37 -
Htr Door County 104 23 -
Zion Ev Lutheran Ch 104 66 -
Washington Island Red Barn Theater Park 102 8 -
St Paul Lutheran Ch Elca 102 13 -
Ephraim Yacht Harbor Dock 102 25 -
WI DNR Pen Weborg Pt 102 5 -
Ephraim Beach Park 102 13 -
Homestead Suites 102 9 -
Ephraim Yacht Harbor Condos 101 60 -
Rustic Timbers Office 100 95 -
Fresh Coast Motel-Deckhouse 100 0 -
Founders Square Pelletiers 100 64 -
WI DNR Pot Daisy Fld Winter Well 100 23 -
WI DNR Pot Boat Launch 100 12 -

Compare beyond Wisconsin

Mid-flagged peers for Door County

Cross-state counties nearest Door County on flagged-system share (94.1%) and cumulative violation count (19,310). 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.