PlainWater

Comanche County, Oklahoma

SDWIS compliance plate

Sheet OK031 · Comanche County 25 sys · 5,160 viol · #451/3254

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

  • VIOL-SEVERE 96.0% flagged
  • HEALTH-LOW 13.0% health
  • RANK-TOP #451/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-SW SW lead 68%
  • SYS-SMALL 25 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Comanche County ranks #451 of 3,254 counties by people served, and #4 of 77 counties in Oklahoma. See methodology · corpus placement.

Comanche County standing, mid-flagged corpus third

Flagged-system rate 96.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 13.0% 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 #451 of 3,254 · #4 of 77 in Oklahoma.

Flagged-rate neighbourhood around Comanche County

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

0% 20% 40% 60% 80% 100% Murray · lowest Cleveland · near Pottawatomie · near Cimarron · highest 88.9% 95.5% 95.9% 96% 96.3% 96.7% 100%

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

Water Systems

System Name Population Violations PFAS
Lawton 92,757 171 Clean
Fort Sill Hqusafacfs 23,000 40 Clean
Elgin PWA 3,300 331 -
Comanche Co RWD #4 3,000 348 -
Comanche Co RWD #1 2,800 23 -
Cache 2,371 113 -
Comanche Co RWD #3 2,325 160 -
Comanche Co RWD #2 1,840 120 -
Geronimo 1,200 60 -
Fletcher 1,022 870 -
Pecan Valley RWD 1,000 124 -
Sterling PWA 762 102 -
Chattanooga PWS 627 313 -
Medicine Park 382 190 -
Indiahoma Public Works Authority 350 329 -
Faxon 134 193 -
Mountain Village Development 77 209 -
Southeast Water Association 51 52 -
Fort Sill Camp Eagle 50 0 -
Sunnyside Water Assoc 50 395 -
Hwy 7 East Water Assn 50 730 -
Clemmer Water Association 47 63 -
Valley View Estates Homeowners Assoc 42 6 -
Letra Beach 26 27 -
Valley View Water Association 25 191 -

Compare beyond Oklahoma

Mid-flagged peers for Comanche County

Cross-state counties nearest Comanche County on flagged-system share (96.0%) and cumulative violation count (5,160). 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.