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Counties → Ohio

Darke County, Ohio

SDWIS compliance plate

Sheet OH037 · Darke County 73 sys · 4,784 viol · #1124/3254

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

  • VIOL-SEVERE 86.3% flagged
  • HEALTH-LOW 13.6% health
  • RANK-UPPER #1124/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 50.0% detect
  • SRC-GW GW lead 99%
  • SYS-MID 73 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Stark County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Darke County ranks #1,124 of 3,254 counties by people served, and #51 of 88 counties in Ohio. See methodology · corpus placement.

Darke County standing, lower-flagged corpus third

Flagged-system rate 86.3% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 13.6% 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 #1,124 of 3,254 · #51 of 88 in Ohio.

Flagged-rate neighbourhood around Darke County

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

0% 20% 40% 60% 80% 100% Fayette · lowest Ashtabula · near Stark · near Vinton · highest 78.6% 85.7% 86% 86.3% 86.3% 86.4% 100%

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

Water Systems

System Name Population Violations PFAS
Greenville City PWS 13,227 31 Detected
Eldora Speedway Main Concessions PWS 3,007 8 -
Versailles Village PWS 2,687 76 -
Arcanum Village PWS 2,100 52 -
Bradford Village PWS 2,000 130 Clean
Union City Village PWS 1,650 13 -
Ansonia Village PWS 1,174 29 -
Eldora Speedway Infield Well PWS 1,000 0 -
Eldora Speedway North Well PWS 1,000 0 -
New Madison Village PWS 892 61 -
Franklin Monroe School New PWS 792 257 -
Mississinawa Valley High 781 15 -
Pak-A-Sak 38 PWS 604 56 -
Sherwood Forest MHP PWS 578 128 -
Gettysburg Village PWS 513 74 -
Marshalls Service 404 75 -
Kingdom Hall of Greenville 400 65 -
Pak-A-Sak 37 PWS 350 32 -
Castine Church PWS 300 39 -
Erwin Brothers Truck Stop PWS 300 0 -
St Louis Catholic Church 250 24 -
St. Nicholas Catholic Church 230 17 -
Pleasant View Missionary Church 220 28 -
Tin Roof Tavern 217 19 -
Solid Rock Apostolic Church-Bradford PWS 215 13 -
Stillwater Valley Golf Club 200 31 -
Darke County Nature Education Center 200 7 -
Greenville Church of God PWS 200 7 -
Greenville Grace Brethren PWS 200 18 -
Bible Fellowship Church 175 10 -
Dollar General 25852 Greenville Wayne Lk 175 68 -
Lighthouse Christian Center 170 42 -
St John Lutheran Church 160 29 -
Brumbaugh Fruit Farm PWS 154 9 -
Arrowhead Campground 150 25 -
Rossburg Acres Campground PWS 150 38 -
Anthony Wayne School 135 219 -
Beechwood Golf Course-Clubhouse 125 11 -
Cedar Grove Church 125 18 -
Eagles Landing Farm and Venue 125 0 -
Stillwater RV Park and Campground 107 37 -
Northtowne Communities LLC 100 192 -
Do Good Ministry Restaurant PWS 100 72 -
White Springs Golf Club 100 8 -
Trinity Lutheran Church 100 20 -
Beamsville Christian Church PWS 100 3 -
Oakland Church of the Brethren 94 52 -
Golden Heritage Egg Farm 90 0 -
A and R Union City Park MHP PWS 85 71 -
Palestine Church of Christ PWS 80 23 -

Compare beyond Ohio

Lower-flagged peers for Darke County

Cross-state counties nearest Darke County on flagged-system share (86.3%) and cumulative violation count (4,784). 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.