PlainWater

Wilson County, Kansas

SDWIS compliance plate

Sheet KS205 · Wilson County 16 sys · 2,265 viol · #2455/3254

VIOL-SEVERE · HEALTH-HIGH · RANK-LOWER · PHOTO-FINISH · PFAS-NONE · SRC-SW · SYS-SMALL · BOOK-MOST

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-HIGH 50.6% health
  • RANK-LOWER #2455/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-SW SW lead 100%
  • SYS-SMALL 16 systems
  • BOOK-MOST 6/7 fields

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

According to EPA SDWIS county population served used on /counties, Wilson County ranks #2,455 of 3,254 counties by people served, and #41 of 105 counties in Kansas. See methodology · corpus placement.

Wilson County standing, mid-flagged corpus third

Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 50.6% is health-based share above the upper third (> 24.5%) . No UCMR5 tests in this extract for Wilson County . Population served ranks #2,455 of 3,254 · #41 of 105 in Kansas.

Flagged-rate neighbourhood around Wilson County

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

0% 20% 40% 60% 80% 100% Chase · lowest Greeley · highest Wyandotte · near Leavenworth · near 85.7% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Neodesha, City Of 2,246 152 -
Fredonia, City Of 2,111 300 -
Wilson Co RWD 11 836 37 -
Wilson Co RWD 10 808 294 -
Wilson Co RWD 7 585 87 -
Wilson Co RWD 9 447 41 -
Altoona, City Of 349 380 -
Wilson Co RWD 1 307 98 -
Wilson Co RWD 4 293 170 -
Wilson Co RWD 13 223 46 -
Buffalo, City Of 218 181 -
Wilson Co RWD 2 194 269 -
Wilson Co RWD 12 123 84 -
Wilson Co RWD 8 32 57 -
Wilson Co RWD 6 30 42 -
Public Wholesale WSD 23 1 27 -

Compare beyond Kansas

Mid-flagged peers for Wilson County

Cross-state counties nearest Wilson County on flagged-system share (100.0%) and cumulative violation count (2,265). 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. 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.