CITY REPORT OH

Londonderry, OH Water - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$173K
Median Home Value
$500
Est. Remediation (0.3% of home value)

What You Should Know About Londonderry Water

  • Average of reported 90th-percentile lead results: 0.0018 mg/L.
  • Homes built before 1986: 75% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 15.87.

Who Supplies Your Water in Londonderry

Listed supplier for Londonderry, OH: one system, of 1 on federal record.

Overview

We track home safety data for 1 ZIP code in Londonderry, Ohio (population ~2,276), covering 1 community water system serving approximately 35,345 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

Londonderry water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0018 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
45647 — Ross County Water Company Inc. 35,345

All ZIP Codes in Londonderry

Data Sources

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

Health Outcomes in Londonderry

11.6%
Asthma (US: 9.8%)
15%
Diabetes (US: 10.4%)
19.2%
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 11.6% ↑
Diabetes 15% ↑
Mental Health 19.2% ↑

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

Housing & Infrastructure in Londonderry

1976
Median Build Year
75%
Built Before 1986
45%
Built Before 1970
Copper
Likely Pipe Material

With 75% 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 Londonderry 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: 1976.

1976
Median Year Built
75%
Pre-1986 (lead solder era; lead paint banned 1978)
45%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (45%) 1970–1986 (30%) Post-1986 (25%)

Over half of homes in Londonderry 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.

Cost Context: What Remediation Means for Londonderry Homeowners

Estimated remediation for Londonderry is a small fraction of median property value - one percent or less - though the ratio does not describe any single household.

Median Home Value
$173,100
Est. Remediation
$500
Remediation as % of home value 0.3%

Estimated remediation costs in Londonderry 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 6% below the Ohio average.

Lead Exposure Risk for Children in Londonderry

75%
Homes Built Before 1986
0.0018
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.

Frequently Asked Questions

Does Londonderry water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Londonderry is 0.0018 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 many water systems serve Londonderry?
Our records map 1 water system to 1 ZIP code in Londonderry. The related population figure in our data is approximately 2,276 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Londonderry?
Estimated remediation cost per household in Londonderry: $500; modeled range $300 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
Home → Cities → Ohio → Londonderry, OH

How to cite this page

APA ZipCheckup. (2026). Londonderry, OH Water - Home Safety Score unavailable. https://zipcheckup.com/cities/oh/londonderry/
BibTeX
@misc{zipcheckup-cities-oh-londonderry,
  author = {{ZipCheckup}},
  title  = {{Londonderry, OH Water - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/oh/londonderry/}
}

Page version: October 2026.

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