CITY REPORT WI

Ixonia, WI: High Radon Risk - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
Zone 1
Radon Risk (High)
$347K
Median Home Value
$3,000
Est. Remediation (0.9% of home value)

What You Should Know About Ixonia Water

  • Average lead level: 0.0004 mg/L.
  • Homes built before 1986: 43% - older plumbing may contain lead solder.
  • Estimated remediation: $3,000 per household.
  • CDC health risk index: 12.75 - above typical levels.

Who Supplies Your Water in Ixonia

In Ixonia, WI, the drinking water supply is organized under a single dominant utility - a consolidated structure that shapes how infrastructure investment, regulatory compliance, and rate decisions flow to households. When one provider handles the overwhelming share of residential connections out of 1 tracked system, accountability is clear: service upgrades, EPA violation responses, and tariff changes all funnel through that single organizational structure.

Overview

We track home safety data for 1 ZIP code in Ixonia, Wisconsin, covering 1 community water system serving approximately 3,483 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.

Water Sources

Ixonia water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0004 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
53036 Hustisford Waterworks 1,063

All ZIP Codes in Ixonia

Data Sources

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

Health Outcomes in Ixonia

10.9%
Asthma (US: 9.8%)
10.7%
Diabetes (US: 10.4%)
15.5%
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 10.9% ↑
Diabetes 10.7% ↑
Mental Health 15.5% ↑

Vertical line = national average. Above national · Below national

Housing & Infrastructure in Ixonia

1990
Median Build Year
43%
Built Before 1986
23%
Built Before 1970
Copper
Likely Pipe Material

With 43% 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

Tap water lead levels are shaped by two factors: what the utility delivers, and what the household plumbing adds to it. Older homes contribute disproportionately to that second variable because lead solder was standard in copper plumbing before 1986, and lead pipes were common before 1970. In Ixonia, where the median build year is 1990, a substantial share of the housing stock falls into these older categories. The bar chart above breaks out the pre-1970, 1970-to-1986, and post-1986 segments - the key ages for understanding where plumbing-era risk concentrates across the city.

1990
Median Year Built
43%
Pre-1986 (Lead Paint Risk)
23%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (23%) 1970–1986 (20%) Post-1986 (57%)

Most homes in Ixonia were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Ixonia Homeowners

Remediation costs in Ixonia are small relative to typical property values - the cost-to-value ratio here is favorable.

Median Home Value
$347,100
Est. Remediation
$3,000
Remediation as % of home value 0.9%

Remediation costs in Ixonia are relatively low compared to home values. The $2,000–$4,000 estimated range is a small fraction of median property value. Home values are 50% above the Wisconsin average.

Lead Exposure Risk for Children in Ixonia

43%
Homes Built Before 1986
0.0004
mg/L Avg Lead (Limit: 0.015)

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.

Practically, the structural drivers in Ixonia - 43% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark - make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.

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

Historical NFIP Claim Context in Ixonia

1
Total FEMA Flood Claims
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Ixonia contains 1 flood insurance claim. 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 <strong>$3,000</strong> 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.

Frequently Asked Questions

Does Ixonia water have lead?
The average 90th-percentile lead level in Ixonia is 0.0004 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Ixonia?
Ixonia is served by 1 public water system across 1 ZIP code, serving approximately 3,483 people.
How much does it cost to fix water issues in Ixonia?
Estimated remediation costs in Ixonia average $3,000 per household, ranging from $2,000 to $4,000. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesWisconsin → Ixonia, WI

How to cite this page

APA ZipCheckup. (2026). Ixonia, WI: High Radon Risk - Home Safety Score unavailable. https://zipcheckup.com/cities/wi/ixonia/
BibTeX
@misc{zipcheckup-cities-wi-ixonia,
  author = {{ZipCheckup}},
  title  = {{Ixonia, WI: High Radon Risk - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wi/ixonia/}
}

Page version: August 2026.

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