How many water violations are in Laramie County?

Laramie County has 2,478 total drinking water violations across 51 water systems, of which 294 are health-based violations. 94.1% of systems have at least one violation.

How many people get water from Laramie County systems?

Water systems in Laramie County serve approximately 96,725 people through 51 public water systems.

Has PFAS been detected in Laramie County water?

Under EPA UCMR5, 0 of 3 tested systems in Laramie County had at least one PFAS detection (0.0% of the UCMR5-tested subset - not of all 51 SDWIS systems).

What types of water sources supply Laramie County?

Water systems in Laramie County use GW (43 systems), SW (8 systems) as their primary water sources.

Are health-based violations serious?

Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 11.9% of Laramie County's violations are health-based. Among counties with any SDWIS violations, this extract puts Laramie County in the middle health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

Where does Laramie County sit among U.S. counties for water-system population?

According to EPA SDWIS county population served used on /counties, Laramie County ranks #592 of 3,254 counties by people served, and #1 of 23 counties in Wyoming. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Wyoming

Laramie County, Wyoming

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet WY021 · Laramie County 51 sys · 2,478 viol · #592/3254

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

VIOL-SEVERE 94.1% flagged
HEALTH-LOW 11.9% health
RANK-TOP #592/3254
PHOTO-FINISH ±0.6 pp
PFAS-CLEAN 0.0% detect
SRC-GW GW lead 84%
SYS-MID 51 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Converse County (+ 0.6 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Laramie County ranks #592 of 3,254 counties by people served, and #1 of 23 counties in Wyoming. See methodology · corpus placement.

Laramie County standing, mid-flagged corpus third

Flagged-system rate 94.1% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 11.9% 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 #592 of 3,254 · #1 of 23 in Wyoming.

Water Systems

System Name	Population	Violations	PFAS
Cheyenne Board of Public Utilities	64,165	12	Clean
South Cheyenne Water & Sewer District	10,000	14	Clean
Usaf F.e. Warren Afb	5,500	23	Clean
Love`s Travel Center	1,545	5	-
Travel Centers of America	1,525	39	-
Cheyenne Hills Church	1,211	0	-
Pine Bluffs, Town Of	1,186	391	-
Winchester Hills	1,078	40	-
Burns Board of Public Utilities	1,024	144	-
Super Pumper/Sinclair #5	1,022	149	-
West Winds	663	31	-
Big Country Estates	615	16	-
McDonald's (Preiss Corporation)	575	9	-
Lds-Buffalo Ridge Church	530	57	-
Little America Hotels & Resorts Cheyenne	525	18	-
Prairie Wind Elementary School	491	5	-
Sapp Brothers Truck Stop	400	28	-
Arbys Restaurant #7432	386	30	-
Cimmaron Village	327	2	-
WY DOT-Port of Entry 85	308	4	-
Curt Gowdy St Pk-Hq & Visitor Ctr	286	44	-
Orchard Valley Water Company	260	19	-
Laramie County Archer Complex	212	2	-
Wydot-I80 Port of Entry	206	6	-
Albin, Town Of	181	228	-
Wydot-I25 Port of Entry	180	0	-
Bunkhouse Bar and Grill	174	32	-
Dyno Nobel, Inc	170	9	-
Gilchrist Elementary	160	12	-
Terry Bison Ranch	160	23	-
Antelope Truck Stop	157	53	-
Englewood Village MHP	152	3	-
Highland Ranch Estates	128	208	-
Little Bear Inn	112	79	-
Curt Gowdy Sp-Conc, Tw & Sherman Hls Cg	112	9	-
Tractor Supply Company-Cheyenne	110	2	-
Hide-A-Way Mobile Village	107	82	-
Carpenter W&S District	94	65	-
Cheyenne RV Resort, LLC	82	16	-
WY DOT-Driver Services Center	80	0	-
Mountain View Estates (Knecht Invts)	75	73	-
Wyoming Campground	72	13	-
Meadowlark Academy	70	65	-
Restway Travel Park	62	27	-
Granite Canyon Quarry	54	37	-
The Den	50	37	-
Crt Gowdy Stpk-Crystal D.& Twin Lks Cgs	37	6	-
Miller Lower Mobile Home Park	30	18	-
Evergreen Mobile Home Park	26	252	-
Cheyenne Shrine Club	25	27	-

Compare beyond Wyoming

Mid-flagged peers for Laramie County

Cross-state counties nearest Laramie County on flagged-system share (94.1%) and cumulative violation count (2,478). 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

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

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.