ZipCheckup grade for 52241: C.
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Coralville, IA (52241): High Radon Potential Area - 67/100
EPA data combined for 3 water systems mapped to this ZIP (largest mapped system: Coralville Muni Water System)
EPA records for the water systems mapped to 52241 in Coralville, IA contain zero recorded violations for inclusive record years 2021 through 2026. This does not establish that every category was monitored or published, and it does not cover events outside that source window.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water No drinking-water violations in EPA records since 2021.
- Lead The reported 90th-percentile lead result of 0.003 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
- Flood 112 cumulative NFIP claim records. This historical count is not a current property-risk verdict.
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Score Breakdown
Overall Home Safety Score: 67/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) HIGH
Your Water System
ZIP code 52241 in Coralville, Iowa is mapped to the water system Coralville Muni Water System (EPA ID: IA5208071). This system provides water to approximately 22,318 people from groundwater sources.
There are 3 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Coralville Muni Water System | IA5208071 | 22,318 | Groundwater |
| North Liberty Water Supply | IA5252072 | 23,276 | Groundwater |
| Iowa City Water Department | IA5225079 | 68,753 | Surface water |
Other Water Quality Reports in Iowa
- 50001 (Ackworth) - 2 violations recorded for mapped water systems
- 50002 (Adair)
- 50003 (Adel) - 9 violations recorded for mapped water systems
- 50005 (Albion)
- 50006 (Alden)
- 50007 (Alleman)
- 50008 (Allerton)
- 50009 (Altoona) - 5 violations recorded for mapped water systems
- 50010 (Ames) - 4 violations recorded for mapped water systems
- 50011 (Ames)
- 50012 (Ames) - 2 violations recorded for mapped water systems
- 50013 (Ames) - 2 violations recorded for mapped water systems
- 50014 (Ames) - 5 violations recorded for mapped water systems
- 50020 (Anita)
- 50021 (Ankeny)
- 50022 (Atlantic)
- 50023 (Ankeny)
- 50025 (Audubon)
- 50026 (Bagley)
- 50027 (Barnes City)
Nearby Water Quality Reports
- 52242 (Iowa City) - 3 mi
- 52317 (North Liberty) - 4 mi - 3 violations recorded for mapped water systems
- 52246 (Iowa City) - 4 mi - 8 violations recorded for mapped water systems
- 52243 (Iowa City) - 4 mi
- 52245 (Iowa City) - 4 mi - 10 violations recorded for mapped water systems
- 52340 (Tiffin) - 5 mi
- 52240 (Iowa City) - 6 mi - 20 violations recorded for mapped water systems
- 52333 (Solon) - 9 mi - 3 violations recorded for mapped water systems
- 52244 (Iowa City) - 9 mi
- 52322 (Oxford) - 10 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Coralville Muni Water System (IA5208071) on EPA.gov.
5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
UCMR 5 PFAS monitoring: no reportable detections in available records
Available federal UCMR5 records for water systems mapped to ZIP code 52241 show no PFAS detections among the compounds tested, at the program's reporting levels.
The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.
Environmental Hazards (11) HIGH
Home & Infrastructure (6) OK
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Coralville
Based on local data for ZIP 52241, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Coralville has 112 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 52241 safe to drink?
EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 52241 (primary system: Coralville Muni Water System), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 52241's water come from?
The recorded water source for Coralville Muni Water System, a system mapped to ZIP code 52241, is Groundwater. This system serves approximately 22,318 people.
How does Coralville water compare to the national average?
Coralville's Home Safety Score ranks lower than 65% of U.S. ZIP codes, and lower than 59% of ZIP codes within Iowa.
How can I get my water tested in Coralville?
If Coralville Muni Water System supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 52241 tap water?
The Lead and Copper Rule record selected for 52241 reports a 90th-percentile lead result of 0.003 mg/L for a water system mapped to this ZIP (record date 2024-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 52241?
52241 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Johnson County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
What does the NFIP claim history show for ZIP 52241?
FEMA records contain 112 flood insurance claims filed in ZIP code 52241; the recorded rated-zone value (the most frequent one if there are several claims) is AE, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Coralville, IA (52241): High Radon Potential Area - 67/100. https://zipcheckup.com/report/52241/
@misc{zipcheckup-report-52241,
author = {{ZipCheckup}},
title = {{Coralville, IA (52241): High Radon Potential Area - 67/100}},
year = {2026},
url = {https://zipcheckup.com/report/52241/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 52241
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 52242 | Iowa City, IA | 3.1 mi | C | 0 |
| 52317 | North Liberty, IA | 3.6 mi | C | 3 |
| 52246 | Iowa City, IA | 3.7 mi | C | 8 |
| 52243 | Iowa City, IA | 3.8 mi | N/A | 0 |
| 52245 | Iowa City, IA | 4.4 mi | C | 10 |
| 52340 | Tiffin, IA | 4.5 mi | N/A | 0 |
| 52240 | Iowa City, IA | 6.1 mi | C | 20 |
| 52333 | Solon, IA | 9.1 mi | N/A | 3 |
| 52244 | Iowa City, IA | 9.1 mi | N/A | 0 |
| 52322 | Oxford, IA | 9.8 mi | N/A | 0 |
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