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Counties → Wyoming

Park County, Wyoming

SDWIS compliance plate

Sheet WY029 · Park County 49 sys · 951 viol · #1154/3254

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

  • VIOL-SEVERE 91.8% flagged
  • HEALTH-MID 21.1% health
  • RANK-UPPER #1154/3254
  • PHOTO-FINISH ±0.5 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 65%
  • SYS-MID 49 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Washakie County (+ 0.5 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Park County ranks #1,154 of 3,254 counties by people served, and #7 of 23 counties in Wyoming. See methodology · corpus placement.

Park County standing, lower-flagged corpus third

Flagged-system rate 91.8% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 21.1% 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 #1,154 of 3,254 · #7 of 23 in Wyoming.

Flagged-rate neighbourhood around Park County

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

0% 20% 40% 60% 80% 100% Teton · lowest Washakie · near Fremont · near Niobrara · highest 87.1% 91.8% 92.3% 92.9% 93.3% 94.1% 100%

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

Water Systems

System Name Population Violations PFAS
Cody, City Of 10,224 11 Clean
Northwest Rural Water District 7,330 4 Clean
Powell, City Of 6,310 4 Clean
Ynp-Canyon Village 4,300 9 Clean
Ynp-Mammoth Hot Springs 2,600 14 -
Ynp-Norris 1,515 8 -
K Bar Z Guest Ranch 847 16 -
Buffalo Bill Dam Visitor Center 500 13 -
Ynp-Tower Fall Cg 495 2 -
Green Acres Mobile Home Park 375 20 -
Meeteetse, Town Of 327 29 -
Jubys Mobile Home Park 300 20 -
Camp Buffalo Bill 250 24 -
Ynp-Indian Creek 240 1 -
Yellowstone Valley Inn 237 30 -
Pahaska Tepee Resort 205 36 -
Shoshone Nf-Wapiti Cg & Rs 157 11 -
Shoshone Nf-Three Mile Cg 150 15 -
Shoshone Nf-Fox Creek Cg 120 6 -
Sleeping Giant Ski Area 112 31 -
Big Horn Basin Boat Club 104 6 -
Rivers Bend Trailer Court 96 56 -
Ynp-Slough Creek Cg 94 9 -
Shoshone Nf-Beartooth Lake Cg 80 6 -
Buffalo Bill Sp-Lake Shore Campground 77 0 -
Shoshone Nf-Island Lake Cg 75 0 -
Absaroka Mountain Lodge 67 9 -
7D Ranch 61 14 -
Bill Cody Ranch 60 29 -
Shoshone Lodge 60 36 -
Contango Resources, LLC- Clark Fork 60 23 -
Buffalo Bill St Pk North Fork 50 2 -
Green Creek Inn & RV 50 9 -
Shoshone Nf-Eagle Creek Cg 50 6 -
Edelweiss 42 27 -
Copperleaf Water System 42 4 -
Elephant Head Lodge 41 25 -
Trail Shop 40 34 -
Rimrock Ranch 40 1 -
Shoshone Nf-Rex Hale Cg 40 25 -
Uxu Ranch LLC 35 52 -
Big Valley & Crossed Arrows Imp Dist 35 112 -
Creekside Lodge 32 35 -
Blackwater Creek Ranch 32 44 -
Homestead Campground Water System 28 0 -
Crossed Sabres Guest Ranch 25 45 -
Shoshone Municipal Pipeline 25 0 -
Shoshone Nf-Newton Creek #12 Cg 25 6 -
Painter Estates HOA 8 32 -

Compare beyond Wyoming

Lower-flagged peers for Park County

Cross-state counties nearest Park County on flagged-system share (91.8%) and cumulative violation count (951). 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.