CITY REPORT WI

Sparta, WI Home Safety: Home Safety 83/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Sparta: B.

This ZIP has a few items worth a quick check.

Tap water system records for Sparta, WI support a high grade on this site; review your own system's entries for specifics.

How Sparta Compares

Sparta83/100
Wisconsin avg70/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs Linked to Systems with Violations
B · 83
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$201K
Median Home Value

What You Should Know About Sparta Water

  • Average of reported 90th-percentile lead results: 0.0014 mg/L.
  • Homes built before 1986: 58% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 14.61.

Who Supplies Your Water in Sparta

A single entry in the list below does not mean one utility serves all of Sparta, WI: it means one system appears there, while federal records link 1 to the area. Service areas and ZIP codes do not line up exactly, so the utility named on a household's water bill is the one whose record applies to that home.

Overview

We track home safety data for 1 ZIP code in Sparta, Wisconsin, covering 1 community water system serving approximately 18,068 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 Sparta: B (83/100)

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

Sparta water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0014 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 2.

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
54656 B Sparta Waterworks 10,025

All ZIP Codes in Sparta

Data Sources

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

Health Outcomes in Sparta

11.2%
Asthma (US: 9.8%)
12.8%
Diabetes (US: 10.4%)
16.7%
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 11.2% ↑
Diabetes 12.8% ↑
Mental Health 16.7% ↑

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

Housing & Infrastructure in Sparta

1971
Median Build Year
58%
Built Before 1986
35%
Built Before 1970
Copper
Likely Pipe Material

With 58% 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 Sparta 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: 1971.

1971
Median Year Built
58%
Pre-1986 (lead solder era; lead paint banned 1978)
35%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (35%) 1970–1986 (23%) Post-1986 (42%)

Over half of homes in Sparta 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.

Lead Exposure Risk for Children in Sparta

58%
Homes Built Before 1986
0.0014
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 NFIP Claim Context in Sparta

29
Total FEMA Flood Claims
$44,501
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Sparta contains 29 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $44,501. 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.

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

What does the Home Safety Score mean for Sparta, WI?
Sparta has an average Home Safety Score of 83/100 (Grade B) 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 Sparta water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Sparta is 0.0014 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 Sparta compare to Wisconsin average?
Sparta has an average Home Safety Score of 83/100, which is at or above the Wisconsin state average of 70/100 for the same model series.
How many water systems serve Sparta?
Our records map 1 water system to 1 ZIP code in Sparta. The related population figure in our data is approximately 18,068 people; it is not a count of people served citywide.
Home → Cities → Wisconsin → Sparta, WI

How to cite this page

APA ZipCheckup. (2026). Sparta, WI Home Safety: Home Safety 83/100. https://zipcheckup.com/cities/wi/sparta/
BibTeX
@misc{zipcheckup-cities-wi-sparta,
  author = {{ZipCheckup}},
  title  = {{Sparta, WI Home Safety: Home Safety 83/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wi/sparta/}
}

Page version: October 2026.

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