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Counties → Michigan

Iosco County, Michigan

SDWIS compliance plate

Sheet MI069 · Iosco County 85 sys · 698 viol · #1603/3254

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

  • VIOL-SEVERE 72.9% flagged
  • HEALTH-MID 20.6% health
  • RANK-MID #1603/3254
  • PHOTO-FINISH ±0.5 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 92%
  • SYS-MID 85 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Bay County ( -0.5 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Iosco County ranks #1,603 of 3,254 counties by people served, and #57 of 83 counties in Michigan. See methodology · corpus placement.

Iosco County standing, lower-flagged corpus third

Flagged-system rate 72.9% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 20.6% is health-based share in the middle 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 #1,603 of 3,254 · #57 of 83 in Michigan.

Flagged-rate neighbourhood around Iosco County

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

0% 20% 40% 60% 80% 100% Oscoda · lowest Benzie · near Bay · near Menominee · highest 52.9% 71.6% 71.7% 72% 72.4% 72.9% 100%

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

Water Systems

System Name Population Violations PFAS
Oscoda Township 6,997 0 Clean
East Tawas, City Of 2,808 9 -
Au Sable Township 2,370 13 -
Old Orchard Park Campground 2,000 5 -
Tawas City, City Of 1,827 8 -
Whittemore/Prescott School Complex 860 37 -
Baldwin Township 650 2 -
Forward's of Hale 500 4 -
Hale Area Schools 450 32 -
St. Pius X Catholic Church 300 1 -
Usfs - Monument Cg - Hmnf 300 2 -
Hale Marathon #153 300 3 -
Crossroads Market of Whittemore 300 1 -
Dore Stores, Inc 300 4 -
D&r Bear Trail Ent./Nessy's Marathon 200 0 -
Dore Stores Tawas City 200 0 -
Iosco Resa 169 4 -
Whittemore/Prescott Schools Concession 154 0 -
Hale Methodist Church 120 7 -
Rhgc, LLC 120 8 -
Hale Dollar General 104 0 -
Sand Lake Micro Brewery 100 5 -
Tawas RV Park 100 3 -
Roger's Family Food of Hale 100 8 -
Main Street Pizzeria & BBQ Inc 100 1 -
Victorian Cafe 100 0 -
Alabaster Township 86 10 -
Big Bob's Restaurant & Pizza 80 3 -
Rainbow Gardens 75 2 -
Hale Baptist Church 75 12 -
Good News Ministries Luth.chur 75 4 -
Family Dollar #5456 - Hale 75 3 -
Dollar General #20085 - Whittemore 75 0 -
Hale Dollar General (North) 74 0 -
Kingdom Hall Jehovah's Witnesses 73 7 -
Hale Homestead Apartments 72 122 -
St. Paul's Lutheran Church - Hale 70 1 -
Cast Iron Grill 60 9 -
Galli's Family Restaurant 60 6 -
Eagle Point Plaza 50 28 -
Desi's Taco Lounge 50 0 -
Wicker Hills Country Club Inc 50 1 -
Sand Lake Tavern & Grill 50 4 -
The Huron Breeze Condominiums Assoc. 50 5 -
The Lodge 50 0 -
Bible Believers Baptist Church 50 7 -
Usfs - Hmnf Round Lk Cg-Round Loop 1 50 12 -
Foe - Hale #4217 50 4 -
Hale Area VFW 7435 50 0 -
Green Valley RV Campground 50 0 -

Compare beyond Michigan

Lower-flagged peers for Iosco County

Cross-state counties nearest Iosco County on flagged-system share (72.9%) and cumulative violation count (698). 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.