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County profile · EPA SDWIS + UCMR5

Kossuth County, Iowa

27 SDWIS-listed public water systems serve 10,881 people in Kossuth County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

27
SDWIS water systems Middle third of counties
1,408
Total violations Middle third of counties
96.3%
SDWIS systems w/ a violation Middle third of counties
0.0%
UCMR5 PFAS rate (2 tested) Lower third of counties with tests

SDWIS compliance plate

Sheet IA109 · Kossuth County 27 sys · 1,408 viol · #2288/3254

VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL

  • VIOL-SEVERE 96.3% flagged
  • HEALTH-LOW 19.2% health
  • RANK-LOWER #2288/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-SMALL 27 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Kossuth County ranks #2,288 of 3,254 counties by people served, and #59 of 99 counties in Iowa. See methodology · corpus placement.

Kossuth County standing, mid-flagged corpus third

Flagged-system rate 96.3% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 19.2% 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 #2,288 of 3,254 · #59 of 99 in Iowa.

Flagged-rate neighbourhood around Kossuth County

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

0% 20% 40% 60% 80% 100% Mahaska · lowest Dubuque · near Clinton · near Ringgold · highest 75% 96% 96% 96.3% 96.4% 97.1% 100%

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

Water Systems

Compare beyond Iowa

Mid-flagged peers for Kossuth County

Cross-state counties nearest Kossuth County on flagged-system share (96.3%) and cumulative violation count (1,408). 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
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. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.