CITY REPORT IA

Mount Sterling, IA: High Radon Risk - Home Safety 67/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Mount Sterling: C.

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

Mount Sterling, IA: mid-range safety grade, uneven compliance across service areas.

How Mount Sterling Compares

Mount Sterling67/100
Iowa avg63/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
C · 67
Avg Safety Score
Zone 1
Radon Risk (High)
$113K
Median Home Value
$1,200
Est. Remediation (1.1% of home value)

Key Facts for Mount Sterling Residents

  • Homes built before 1986: 71% - older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 15.38 - above typical levels.

Mount Sterling's Water Providers

A single dominant system supplies most of Mount Sterling, IA. That utility controls infrastructure decisions, rate structures, and EPA compliance reporting for most residential addresses served across those 1 tracked system.

Overview

We track home safety data for 1 ZIP code in Mount Sterling, Iowa (population ~155), covering 1 community water system serving approximately 33,000 people region-wide. 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 Mount Sterling: 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

Mount Sterling water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0000 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

Dominant radon zone: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Areas with No Violations

ZIP Code Safety Score System Population
52573 C Rathbun Regional Water Assn (rathbun) 33,000

All ZIP Codes in Mount Sterling

Data Sources

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

Mount Sterling Community Health Snapshot

10.5%
Asthma (US: 9.8%)
13.9%
Diabetes (US: 10.4%)
16.9%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.5% ↑
Diabetes 13.9% ↑
Mental Health 16.9% ↑

Vertical line = national average. Above national · Below national

Mount Sterling Infrastructure Age

1976
Median Build Year
71%
Built Before 1986
38%
Built Before 1970
Copper
Likely Pipe Material

With 71% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Lead solder was standard in copper plumbing until federally banned in 1986; lead pipes were common in service lines pre-1970. Mount Sterling's median build year of 1976 reflects a housing stock where these older materials are a pervasive feature - not a rare legacy - of the residential plumbing landscape.

1976
Median Year Built
71%
Pre-1986 (Lead Paint Risk)
38%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (38%) 1970–1986 (33%) Post-1986 (29%)

Over half of homes in Mount Sterling were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Mount Sterling

How does remediation fit within the broader financial picture for Mount Sterling homeowners? The equity share is moderate - large enough that treating it as a real planning consideration makes sense, and manageable enough that most homeowners have a clear path to addressing documented water and safety issues when they approach the commitment with deliberate advance budgeting rather than as an unplanned expense.

Median Home Value
$112,500
Est. Remediation
$1,200
Remediation as % of home value 1.1%

Remediation costs are moderate relative to home values in Mount Sterling. The estimated $800–$1,500 range is manageable for most homeowners but still worth budgeting for. Home values are 32% below the Iowa average.

Mount Sterling: Lead Risk & Vulnerable Populations

71%
Homes Built Before 1986

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted - but 71% of the Mount Sterling inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.

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

What You Can Do in Mount Sterling

  1. Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
  3. Check your home's plumbing. With 71% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for Mount Sterling, IA?
Mount Sterling has an average Home Safety Score of 67/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
How does Mount Sterling compare to Iowa average?
Mount Sterling has an average Home Safety Score of 67/100, which is above the Iowa state average of 63/100 for the same model series.
How many water systems serve Mount Sterling?
Mount Sterling is served by 1 public water system across 1 ZIP code, serving approximately 155 people.
How much does it cost to fix water issues in Mount Sterling?
Estimated remediation costs in Mount Sterling average $1,200 per household, ranging from $800 to $1,500. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIowa → Mount Sterling, IA

How to cite this page

APA ZipCheckup. (2026). Mount Sterling, IA: High Radon Risk - Home Safety 67/100. https://zipcheckup.com/cities/ia/mount-sterling/
BibTeX
@misc{zipcheckup-cities-ia-mount-sterling,
  author = {{ZipCheckup}},
  title  = {{Mount Sterling, IA: High Radon Risk - Home Safety 67/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ia/mount-sterling/}
}

Page version: August 2026.

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