CITY REPORT MN

Janesville, MN Water - Home Safety Score unavailable

1 ZIP code · 3 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
0
ZIPs with Violations
Zone 1
Radon Risk (High)
$224K
Median Home Value
$1,200
Est. Remediation (0.5% of home value)

Key Facts for Janesville Residents

  • Average lead level: 0.001 mg/L.
  • Homes built before 1986: 68% - older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 13.15 - above typical levels.

Janesville's Water Providers

Janesville, MN draws its residential water from 3 separate providers among the 3 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.

Overview

We track home safety data for 1 ZIP code in Janesville, Minnesota (population ~4,203), covering 3 community water systems serving approximately 6,560 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.

Water Sources

Janesville water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0010 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
56048 Janesville 2,275

All ZIP Codes in Janesville

Data Sources

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

Janesville Community Health Snapshot

10.3%
Asthma (US: 9.8%)
11.4%
Diabetes (US: 10.4%)
16.2%
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 10.3% ↑
Diabetes 11.4% ↑
Mental Health 16.2% ↑

Vertical line = national average. Above national · Below national

Janesville Infrastructure Age

1977
Median Build Year
68%
Built Before 1986
36%
Built Before 1970
Copper
Likely Pipe Material

With 68% 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

Reading the housing age data for Janesville - median build year 1977 - the overriding implication is that the plumbing materials inside a typical home here reflect pre-1986 construction standards. In practical terms, that means lead-soldered copper joints are common across much of the housing stock. Where those materials are present, water can leach lead as it moves through joints - a pathway that corrosion control treatment under federal rules is designed to reduce, though it cannot eliminate lead risk where the plumbing materials themselves contain lead.

1977
Median Year Built
68%
Pre-1986 (Lead Paint Risk)
36%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (36%) 1970–1986 (32%) Post-1986 (32%)

Over half of homes in Janesville 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 Janesville

When remediation costs are measured against Janesville home values, the resulting ratio is in the low tier - addressing documented water and safety issues here claims only a minor fraction of typical equity, and most homeowners are in a position where the financial commitment is straightforward rather than a material burden on their household budget.

Median Home Value
$223,900
Est. Remediation
$1,200
Remediation as % of home value 0.5%

Remediation costs in Janesville are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 7% below the Minnesota average.

Janesville: Lead Risk & Vulnerable Populations

68%
Homes Built Before 1986
0.001
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.

68% of Janesville housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark - household-level confirmation through a draw-test kit fits the local picture.

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

Frequently Asked Questions

Does Janesville water have lead?
The average 90th-percentile lead level in Janesville is 0.001 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 Janesville?
Janesville is served by 3 public water systems across 1 ZIP code, serving approximately 4,203 people.
How much does it cost to fix water issues in Janesville?
Estimated remediation costs in Janesville average $1,200 per household, ranging from $800 to $1,500. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMinnesota → Janesville, MN

How to cite this page

APA ZipCheckup. (2026). Janesville, MN Water - Home Safety Score unavailable. https://zipcheckup.com/cities/mn/janesville/
BibTeX
@misc{zipcheckup-cities-mn-janesville,
  author = {{ZipCheckup}},
  title  = {{Janesville, MN Water - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mn/janesville/}
}

Page version: August 2026.

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