PlainWater

Knox County, Nebraska

SDWIS compliance plate

Sheet NE107 · Knox County 18 sys · 664 viol · #2732/3254

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

  • VIOL-SEVERE 94.4% flagged
  • HEALTH-HIGH 51.1% health
  • RANK-BOTTOM #2732/3254
  • PHOTO-FINISH ±0.3 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 89%
  • SYS-SMALL 18 systems
  • BOOK-MOST 6/7 fields

Nearest flagged-rate peer: Dodge County ( -0.3 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Knox County ranks #2,732 of 3,254 counties by people served, and #40 of 93 counties in Nebraska. See methodology · corpus placement.

Knox County standing, mid-flagged corpus third

Flagged-system rate 94.4% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 51.1% is health-based share above the upper third (> 24.5%) . No UCMR5 tests in this extract for Knox County . Population served ranks #2,732 of 3,254 · #40 of 93 in Nebraska.

Flagged-rate neighbourhood around Knox County

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

0% 20% 40% 60% 80% 100% Kimball · lowest Dodge · near Knox · this county Blaine · highest 57.1% 93.8% 94.1% 94.1% 94.4% 94.9% 100%

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

Water Systems

Compare beyond Nebraska

Mid-flagged peers for Knox County

Cross-state counties nearest Knox County on flagged-system share (94.4%) and cumulative violation count (664). 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.