Thermopolis, Town of
EPA ID: WY5600056 · 2,775 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Thermopolis, Town of (WY5600056): no drinking-water violations recorded since 2021. Thermopolis, Town of's compliance file in EPA SDWIS lists no violations, whether health-based or monitoring and reporting, for a utility that supplies water to approximately 2,775 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Thermopolis, Town of Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Thermopolis, Town of have a median household income of $67,869 and about 4,534 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 74% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Thermopolis, Town of's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Wyoming
System Overview
Thermopolis, Town of (EPA ID: WY5600056) is a community water system in Wyoming that serves approximately 2,775 people from surface water sources.
This system serves ZIP code 82443 in Thermopolis.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.004 mg/L | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
1 of 1 ZIP records with known zones is in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by WY or modeled from parcel and building-footprint data.
- 82443 - Thermopolis
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Thermopolis, Town of (WY5600056) on EPA.gov.
Frequently Asked Questions
Is Thermopolis, Town of water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Thermopolis, Town of in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Thermopolis, Town of serve?
Thermopolis, Town of serves approximately 2,775 people across 1 ZIP code in Wyoming.
Where does Thermopolis, Town of get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Thermopolis, Town of Water Quality Report, WY. https://zipcheckup.com/water-system/wy5600056/
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author = {{ZipCheckup}},
title = {{Thermopolis, Town of Water Quality Report, WY}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wy5600056/}
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