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Counties → Idaho

Fremont County, Idaho

SDWIS compliance plate

Sheet ID043 · Fremont County 91 sys · 6,494 viol · #2029/3254

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

  • VIOL-SEVERE 96.7% flagged
  • HEALTH-LOW 16.8% health
  • RANK-LOWER #2029/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-MID 91 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Fremont County ranks #2,029 of 3,254 counties by people served, and #20 of 44 counties in Idaho. See methodology · corpus placement.

Fremont County standing, mid-flagged corpus third

Flagged-system rate 96.7% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 16.8% 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 #2,029 of 3,254 · #20 of 44 in Idaho.

Flagged-rate neighbourhood around Fremont County

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

0% 20% 40% 60% 80% 100% Valley · lowest Idaho · near Bonner · near Camas · highest 89.5% 96.3% 96.6% 96.7% 96.7% 96.8% 100%

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

Water Systems

System Name Population Violations PFAS
St Anthony 3,606 32 Clean
Ashton City Of 1,129 188 -
Teton City Of 735 92 -
Ashton Lds Church 642 13 -
Island Park Lds Church 450 14 -
Usfs Warm River Campground 400 4 -
Blm Egin Lakes Access Rec Site 400 4 -
Newdale City Of 340 199 -
Wilford Lds Church 326 5 -
Parker City Of 322 133 -
Island Park Village 305 315 -
Shotgun North 285 394 -
Idjc Juvenile Corrections Center 280 116 -
Idpr Henrys Lake Sp 275 11 -
Shotgun Cherokee Subd 5 245 465 -
Aspen Ridge Subd 204 868 -
Goose Bay Estates 184 153 -
North Henrys Lake Homeowners Assn 150 21 -
Macks Inn Resort/Springhill Suites 150 94 -
Ponds Lodge 150 46 -
Rancho McCrea Water and Sewer Corp 150 17 -
Egin Lds Church 148 11 -
Lakeside Lodge 128 27 -
Idpr Harriman Sp 125 59 -
Rock Creek Girls Camp-5362245 125 12 -
Sawtell Estates Subd 105 76 -
Usfs Riverside Campground 105 18 -
Valley View RV Park 100 17 -
Wild Rose Ranch 100 34 -
Welling Subd 100 20 -
Sand Hills Resort 100 20 -
Trouthunter Resort, LLC 100 36 -
Shotgun South Stevens Lane 96 22 -
Valley View Subdivision 90 1,278 -
Usfs Buttermilk Campground 89 6 -
Buffalo River Estates 1 and 2 85 38 -
Stonegate 2 Subdivision 81 0 -
Elk Creek Estates 78 11 -
Fremont County Golf Course 75 23 -
Buffalo Run LLC 75 16 -
Yellowstone RV Park at Macks Inn 75 59 -
Red Rock RV and Camping Park 75 10 -
Usfs Last Chance 75 8 -
Shadow Ridge at Stephens Ranch 73 2 -
Bighorn Hills Estates Property Owners 70 14 -
Sam Patch Co. Groceries and Sundries 70 29 -
Shotgun Kickapoo Subd 6 65 78 -
North Fork Water Works 64 142 -
Wilding Subd 2 64 8 -
Yellowstone Golf Resort 63 53 -

Compare beyond Idaho

Mid-flagged peers for Fremont County

Cross-state counties nearest Fremont County on flagged-system share (96.7%) and cumulative violation count (6,494). 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.