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Counties → Illinois

Lee County, Illinois

SDWIS compliance plate

Sheet IL103 · Lee County 67 sys · 2,736 viol · #1212/3254

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

  • VIOL-SEVERE 82.1% flagged
  • HEALTH-MID 29.1% health
  • RANK-UPPER #1212/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-MID 67 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Lee County ranks #1,212 of 3,254 counties by people served, and #36 of 102 counties in Illinois. See methodology · corpus placement.

Lee County standing, lower-flagged corpus third

Flagged-system rate 82.1% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 29.1% 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 #1,212 of 3,254 · #36 of 102 in Illinois.

Flagged-rate neighbourhood around Lee County

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

0% 20% 40% 60% 80% 100% Sangamon · lowest Randolph · near Lee · this county Pulaski · highest 58.8% 81.8% 81.8% 81.8% 82.1% 82.1% 100%

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

Water Systems

System Name Population Violations PFAS
Dixon 15,096 280 Clean
Woodhaven 4,100 76 Clean
Amboy 2,500 13 -
Dixon Correctional Center 2,400 67 -
IL Hwy 39 Willowcreek Sb Rest 1,000 0 -
Ashton 967 56 -
IL Hwy 39 Willowcreek Nb Rest 900 0 -
Franklin Grove 896 38 -
Paw Paw 870 73 -
Sauk Valley College 500 54 -
Sublette 426 30 -
White Oaks Estates Water Assoc., Inc. 410 26 -
Rock River Estates MHP 400 26 -
Allied Locke Industries 350 0 -
Lee 313 80 -
Compton 279 100 -
Parties on Pope 250 7 -
The Meadows 238 0 -
Steward 238 159 -
Mendota Hills Campground 200 10 -
Plum Hollow Family Center 200 4 -
Lowell Park Comfort Station 200 2 -
Oconnells Yogi Bear - Beach/Office 175 23 -
Green Acres MHP 170 76 -
West Brooklyn 150 149 -
Pine View Campground 150 4 -
Oconnells Yogi Bear - Cindy #1 150 11 -
Rock River Bible Camp 125 16 -
Crest Foods Production Area 120 156 -
Harmon 111 275 -
Reynoldswood Christian Camp 100 2 -
Green River Oaks Camping - Campground SE 100 13 -
Emerald Hills Country Club 75 3 -
Green River Saddle Club 75 20 -
Green River Oaks Camping - Pavillion NW 75 10 -
Dixon V.F.W. 75 0 -
Pub-N-Patio 75 1 -
Porkys 70 3 -
Crest Foods Mixing Dept 60 89 -
Tom Dempsey Therapeutic Day School 55 651 -
Plum Creek Club 50 4 -
Slots R US 50 0 -
Franklin Creek State Park-Bankers Picnic 40 9 -
Sheridans Walton Tap 35 2 -
Palmyra Pub & Eatery 35 3 -
Green River Wildlife Area 35 9 -
Franklin Creek State Park - Bartlett Hp 35 4 -
Moonlight Bay Campground 30 15 -
County Market 223 30 4 -
Sunset Inn 25 0 -

Compare beyond Illinois

Lower-flagged peers for Lee County

Cross-state counties nearest Lee County on flagged-system share (82.1%) and cumulative violation count (2,736). 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.