CITY REPORT ND

Gilby, ND: High Radon Potential Area - 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 1
County Radon Potential (High)
$111K
Median Home Value

Key Facts for Gilby Residents

  • Average of reported 90th-percentile lead results: 0.0031 mg/L.
  • Homes built before 1986: 81% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 11.08.

Gilby's Water Providers

Only a single entry appears in the water system list for Gilby, ND; federal records tie 1 to the area.

Overview

We track home safety data for 1 ZIP code in Gilby, North Dakota (population ~609), covering 1 community water system serving approximately 3,438 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

Gilby water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0031 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
58235 — Agassiz Water Users District 3,438

All ZIP Codes in Gilby

Data Sources

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

Gilby Community Health Snapshot

10.4%
Asthma (US: 9.8%)
9.1%
Diabetes (US: 10.4%)
15.3%
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 10.4% ↑
Diabetes 9.1% ↓
Mental Health 15.3% ↑

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

Gilby Infrastructure Age

1955
Median Build Year
81%
Built Before 1986
68%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 81% 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

Plumbing risk in older housing is tied to the period before 1986, when lead pipes and lead solder were still permitted in new plumbing. Gilby's median build year is 1955, and properties from before that year might still contain lead-bearing joints or pipes. Much of that risk sits inside individual properties, which city-level water quality averages don't capture.

1955
Median Year Built
81%
Pre-1986 (lead solder era; lead paint banned 1978)
68%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (68%) 1970–1986 (13%) Post-1986 (19%)

Over half of homes in Gilby 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.

Gilby: Lead Risk & Vulnerable Populations

81%
Homes Built Before 1986
0.0031
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.

Gilby: NFIP Claim Records and Water-Quality Context

10
Total FEMA Flood Claims
$10,257
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Gilby contains 10 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $10,257. 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.

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

Does Gilby water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Gilby is 0.0031 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 Gilby?
Our records map 1 water system to 1 ZIP code in Gilby. The related population figure in our data is approximately 609 people; it is not a count of people served citywide.
Home → Cities → North Dakota → Gilby, ND

How to cite this page

APA ZipCheckup. (2026). Gilby, ND: High Radon Potential Area - Home Safety Score unavailable. https://zipcheckup.com/cities/nd/gilby/
BibTeX
@misc{zipcheckup-cities-nd-gilby,
  author = {{ZipCheckup}},
  title  = {{Gilby, ND: High Radon Potential Area - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/nd/gilby/}
}

Page version: October 2026.

Get safety alerts for Gilby, North Dakota

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Check your water filter options Free tool - no phone call required.