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Counties → Ohio

Mahoning County, Ohio

SDWIS compliance plate

Sheet OH099 · Mahoning County 75 sys · 4,611 viol · #298/3254

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

  • VIOL-SEVERE 94.7% flagged
  • HEALTH-LOW 19.1% health
  • RANK-TOP #298/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-HIGH 66.7% detect
  • SRC-GW GW lead 93%
  • SYS-MID 75 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Union County ( -0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Mahoning County ranks #298 of 3,254 counties by people served, and #12 of 88 counties in Ohio. See methodology · corpus placement.

Mahoning County standing, mid-flagged corpus third

Flagged-system rate 94.7% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 19.1% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 66.7% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #298 of 3,254 · #12 of 88 in Ohio.

Flagged-rate neighbourhood around Mahoning County

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

0% 20% 40% 60% 80% 100% Fayette · lowest Union · near Madison · near Vinton · highest 78.6% 94.1% 94.6% 94.7% 94.9% 95.2% 100%

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

Water Systems

System Name Population Violations PFAS
Youngstown City PWS 130,530 12 Detected
Aqua Ohio - Struthers 58,551 123 Detected
Canfield City PWS 7,767 33 Detected
Hollywood Gaming @ Mvrc 7,625 2 Clean
Sebring Village PWS 6,058 331 Clean
Jackson/Milton Metro Water District PWS 3,728 38 Detected
Greenford Christian Life Center (C, D,E) 1,623 23 -
South Range Local Schools K-12 PWS 1,524 13 -
Quaker City Motorsports Park PWS 1,000 15 -
Western Reserve Schools (K-12 Campus) 855 16 -
Boardman Park-Main Well PWS 601 45 -
Usace-Berlin Lake/ Mill Creek Rec. Area 527 4 -
Colonial Villa Mhc, LLC 450 19 -
Damascus Elementary PWS 326 68 -
Chaparral Family Campground PWS 300 63 -
Country Pantry Inc / Marathon PWS 300 50 -
South Range Local Schools Ath Complex 250 0 -
Deer Meadows MHP 242 105 -
Peaberry Plaza 241 135 -
Whitehouse Fruit Farm 226 24 -
Lakeside Campground 225 3 -
Western Reserve Park - Bathhouse PWS 225 76 -
Western Reserve Park - Campground PWS 225 58 -
Tic Toc Food Mart #203 220 57 -
Lake Milton - Berlin KOA North Well PWS 220 29 -
Dollar General #17813 - Ellsworth 220 0 -
Bedford Trails Golf Course 214 19 -
Greenford Christian Church (Bldgs a & B) 202 41 -
Bens Restaurant and Bar Inc PWS 200 144 -
Western Reserve Motorcycle Club PWS 185 12 -
Berlin Center United Methodist Church 160 18 -
Family Dollar - Beloit #29180 PWS 158 3 -
Society of St Paul 150 45 -
Mastropietro Winery PWS 150 11 -
G's Pizza World - Berlin Center PWS 150 6 -
Salem Hills Golf and Cc 140 3 -
Lake Milton - Berlin KOA South Well PWS 130 41 -
Lake Milton Baptist Temple 130 11 -
Real Life Church 120 107 -
Community Bible Church - Beloit 120 28 -
Lake Milton RV Resort & MHP 108 33 -
Lakeside Golf Course 108 93 -
Baird Brothers Sawmill, Inc. 105 28 -
Greenford Evan Lutheran Church PWS 100 6 -
Flying B Golf Course 100 23 -
Mahoning Valley Market &Marathon Gas PWS 100 0 -
Bulldog's Bar and Grill 96 62 -
Paradise United Church of Christ 75 101 -
Connecting Point Chapel PWS 75 16 -
Christian Life Center PWS 65 31 -

Compare beyond Ohio

Mid-flagged peers for Mahoning County

Cross-state counties nearest Mahoning County on flagged-system share (94.7%) and cumulative violation count (4,611). 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.