CITY REPORT IA

Farmington, IA: High Radon Potential Area - Home Safety 67/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Farmington: C.

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

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

How Farmington Compares

Farmington67/100
Iowa 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)
$89K
Median Home Value
$500
Est. Remediation (0.6% of home value)

What You Should Know About Farmington Water

  • Homes built before 1986: 67% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 15.38.

Who Supplies Your Water in Farmington

Because each listed system has its own federal record, violations at one of the 2 shown below do not apply to the others among the 2 tied to Farmington, IA.

Overview

We track home safety data for 1 ZIP code in Farmington, Iowa (population ~1,151), covering 2 community water systems serving approximately 44,840 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 Farmington: 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

Farmington water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (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
52626 C Rathbun Reg Water Assn (ft Madison) 11,840

All ZIP Codes in Farmington

Data Sources

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

Health Outcomes in Farmington

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). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

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

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

Housing & Infrastructure in Farmington

1960
Median Build Year
67%
Built Before 1986
50%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 67% 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 Farmington 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: 1960.

1960
Median Year Built
67%
Pre-1986 (lead solder era; lead paint banned 1978)
50%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (50%) 1970–1986 (17%) Post-1986 (33%)

Over half of homes in Farmington 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.

Cost Context: What Remediation Means for Farmington Homeowners

Of the three cost-context tiers - low, moderate and elevated - Farmington is in the low one.

Median Home Value
$88,800
Est. Remediation
$500
Remediation as % of home value 0.6%

Estimated remediation costs in Farmington can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 46% below the Iowa average.

Lead Exposure Risk for Children in Farmington

67%
Homes Built Before 1986

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 NFIP Claim Context in Farmington

1
Total FEMA Flood Claims
$4,616
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Farmington contains 1 flood insurance claim. Among claims with payment data, the average reported building, contents, and ICC component sum is $4,616. Among ZIP codes with claim records, 100% 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. The $500 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

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 Farmington

  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 67% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for Farmington, IA?
Farmington 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.
How does Farmington compare to Iowa average?
Farmington has an average Home Safety Score of 67/100, which is at or above the Iowa state average of 63/100 for the same model series.
How many water systems serve Farmington?
Our records map 2 water systems to 1 ZIP code in Farmington. The related population figure in our data is approximately 1,151 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Farmington?
Estimated remediation cost per household in Farmington: $500; modeled range $300 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

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

Page version: October 2026.

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