CITY REPORT WY

Powell, WY: High Radon Potential Area - Home Safety 67/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Powell: C.

A mixed picture - some signals here are worth your attention.

Within Powell, the records summarized for WY produce a C grade - a middle reading that calls for checking the specific system at your address.

How Powell Compares

Powell67/100
Wyoming avg63/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
0
ZIPs Linked to Systems with Violations
C · 67
Avg Safety Score
Zone 1
County Radon Potential (High)
$318K
Median Home Value

Powell Water: The Quick Version

  • Average of reported 90th-percentile lead results: 0.002 mg/L.
  • Homes built before 1986: 57% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 12.77.

Water Systems Serving Powell

2 systems shown for Powell, WY, from 2 on the federal list.

Overview

We track home safety data for 1 ZIP code in Powell, Wyoming, covering 2 community water systems serving approximately 12,259 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for Powell: C (67/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Powell water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0020 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

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.

Areas with No Violations

ZIP Code Safety Score System Population
82435 C City of Powell, 6,310

All ZIP Codes in Powell

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Powell

9.8%
Asthma (US: 9.8%)
11.7%
Diabetes (US: 10.4%)
14.2%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 9.8% ↓
Diabetes 11.7% ↑
Mental Health 14.2% ↓

Vertical line = national average. ■ Above national · ■ Below national

How Old Is Powell's Housing Stock?

1987
Median Build Year
57%
Built Before 1986
32%
Built Before 1970
Copper
Likely Pipe Material

With 57% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Some homes in Powell predate the 1986 federal restrictions on lead in new pipe and solder, so a tap test is a reasonable step for older homes; median build year: 1987.

1987
Median Year Built
57%
Pre-1986 (lead solder era; lead paint banned 1978)
32%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (32%) 1970–1986 (25%) Post-1986 (43%)

Over half of homes in Powell were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Protecting Children from Lead in Powell

57%
Homes Built Before 1986
0.002
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Powell

1
Total FEMA Flood Claims
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Powell contains 1 flood insurance claim. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Powell

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. Choose a pitcher or under-sink filter certified to reduce the specific contaminants of concern.
  3. Check your home's plumbing. With 57% of homes built before 1986, lead solder is a real possibility.

Deep Dive Reports

Detailed analysis for Powell, WY

Frequently Asked Questions

What does the Home Safety Score mean for Powell, WY?
Powell has an average Home Safety Score of 67/100 (Grade C) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
Does Powell water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Powell is 0.002 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Powell compare to Wyoming average?
Powell has an average Home Safety Score of 67/100, which is at or above the Wyoming state average of 63/100 for the same model series.
How many water systems serve Powell?
Our records map 2 water systems to 1 ZIP code in Powell. The related population figure in our data is approximately 12,259 people; it is not a count of people served citywide.
Home → Cities → Wyoming → Powell, WY

How to cite this page

APA ZipCheckup. (2026). Powell, WY: High Radon Potential Area - Home Safety 67/100. https://zipcheckup.com/cities/wy/powell/
BibTeX 
@misc{zipcheckup-cities-wy-powell,
  author = {{ZipCheckup}},
  title  = {{Powell, WY: High Radon Potential Area - Home Safety 67/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wy/powell/}
}

Page version: October 2026.

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