Hilliard, OH: High Radon Risk - Home Safety 42/100
1 ZIP code · 3 water systems · Updated
ZipCheckup grade for Hilliard: D.
Several federal signals point to home-safety risks in this ZIP.
Your top priority: see the breakdown below and consider a certified water filter. NSF certified filters →
State safety rankings put Hilliard, OH near the lower tier - below-average compliance on record.
How Hilliard Compares
Data: EPA SDWIS
Key Facts for Hilliard Residents
- Average lead level: 0.0027 mg/L.
- Homes built before 1986: 25% - older plumbing may contain lead solder.
- Estimated remediation: $3,000 per household.
- CDC health risk index: 12.21 - above typical levels.
Hilliard's Water Providers
3 water systems are tracked federally in Hilliard, OH. The top 3 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.
- D
- D
- D
Overview
We track home safety data for 1 ZIP code in Hilliard, Ohio (population ~64,644), covering 3 community water systems serving approximately 1,307,027 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 Hilliard: D (42/100)
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
Hilliard water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0027 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 |
|---|---|---|---|
| 43026 | D | Columbus Public Water System | 1,305,946 |
All ZIP Codes in Hilliard
- 43026 [D]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Hilliard Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Hilliard Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Hilliard has a newer housing profile - median build year 1994, placing most homes after the 1986 lead-solder ban.
Most homes in Hilliard 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.
How Remediation Costs Compare in Hilliard
Within the Hilliard market, estimated remediation claims a small portion of typical property equity - the financial burden is proportionally low.
Remediation costs in Hilliard are relatively low compared to home values. The $2,000–$4,100 estimated range is a small fraction of median property value. Home values are 77% above the Ohio average.
Hilliard: Lead Risk & Vulnerable Populations
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.
Once federal rules removed lead-bearing solder from new plumbing, building practice changed quickly. Hilliard now carries just 25% of older inventory from that earlier era. Citywide readings remain compliant, though no system-level number can replace a one-home draw.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Hilliard: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Hilliard contains 7 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $1,773. 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 <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.
What You Can Do in Hilliard
- Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Hilliard, OH