CITY REPORT IA

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

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Hiawatha: C.

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

Hiawatha lands in the middle of the grade scale in IA; EPA records can differ from one service area to the next.

How Hiawatha Compares

Hiawatha67/100
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)
$201K
Median Home Value
$500
Est. Remediation (0.3% of home value)

Hiawatha Water: The Quick Version

  • Average of reported 90th-percentile lead results: 0.0016 mg/L.
  • Homes built before 1986: 45% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 12.38.

Water Systems Serving Hiawatha

The 2 largest of 2 systems connected with Hiawatha, IA are listed below.

Overview

We track home safety data for 1 ZIP code in Hiawatha, Iowa (population ~7,008), covering 2 community water systems serving approximately 149,547 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 Hiawatha: 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

Hiawatha water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0016 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 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
52233 C Cedar Rapids Water Department 142,364

All ZIP Codes in Hiawatha

Data Sources

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

CDC Health Data for Hiawatha

10.3%
Asthma (US: 9.8%)
11.2%
Diabetes (US: 10.4%)
16.3%
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 10.3% ↑
Diabetes 11.2% ↑
Mental Health 16.3% ↑

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

How Old Is Hiawatha's Housing Stock?

1998
Median Build Year
45%
Built Before 1986
19%
Built Before 1970
Copper
Likely Pipe Material

With 45% 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

1998 is the median build year in Hiawatha, and the age breakdown below shows how much of the housing predates 1986.

1998
Median Year Built
45%
Pre-1986 (lead solder era; lead paint banned 1978)
19%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (19%) 1970–1986 (26%) Post-1986 (55%)

Most homes in Hiawatha were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Hiawatha: Remediation Cost in Perspective

Because the median home value in Hiawatha is large relative to the estimated cost of remediation, the ratio between them stays at or below 1%; that is a statement about two area-level numbers, not a quote for a particular house or a judgment about what an owner can pay.

Median Home Value
$200,500
Est. Remediation
$500
Remediation as % of home value 0.3%

Estimated remediation costs in Hiawatha 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 22% above the Iowa average.

Protecting Children from Lead in Hiawatha

45%
Homes Built Before 1986
0.0016
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 Flood-Claim Evidence for Hiawatha

2
Total FEMA Flood Claims
$4,824
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Hiawatha contains 2 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $4,824. Among ZIP codes with claim records, 0% 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 Hiawatha

  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 45% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for Hiawatha, IA?
Hiawatha 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.
Does Hiawatha water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Hiawatha is 0.0016 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 Hiawatha compare to Iowa average?
Hiawatha 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 Hiawatha?
Our records map 2 water systems to 1 ZIP code in Hiawatha. The related population figure in our data is approximately 7,008 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Hiawatha?
Estimated remediation cost per household in Hiawatha: $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). Hiawatha, IA: High Radon Potential Area - Home Safety 67/100. https://zipcheckup.com/cities/ia/hiawatha/
BibTeX
@misc{zipcheckup-cities-ia-hiawatha,
  author = {{ZipCheckup}},
  title  = {{Hiawatha, IA: High Radon Potential Area - Home Safety 67/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ia/hiawatha/}
}

Page version: October 2026.

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