CITY REPORT ND

Saint Thomas, ND Water - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
Zone 1
Radon Risk (High)
$79K
Median Home Value
$2,400
Est. Remediation (3.1% of home value)

Key Facts for Saint Thomas Residents

  • Average lead level: 0.0015 mg/L.
  • Homes built before 1986: 81% - older plumbing may contain lead solder.
  • Estimated remediation: $2,400 per household.
  • CDC health risk index: 14.47 - above typical levels.

Saint Thomas's Water Providers

Federal drinking water records identify 1 system operating in Saint Thomas, ND. One of those systems serves the overwhelming majority of residential addresses, concentrating infrastructure management, rate authority, and EPA compliance reporting within a single organization.

Overview

We track home safety data for 1 ZIP code in Saint Thomas, North Dakota (population ~422), covering 1 community water system serving approximately 3,000 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

Saint Thomas water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0015 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
58276 Walsh Rural Water District 3,000

All ZIP Codes in Saint Thomas

Data Sources

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

Saint Thomas Community Health Snapshot

9.8%
Asthma (US: 9.8%)
12.8%
Diabetes (US: 10.4%)
13.4%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 9.8% ↓
Diabetes 12.8% ↑
Mental Health 13.4% ↓

Vertical line = national average. Above national · Below national

Saint Thomas Infrastructure Age

1966
Median Build Year
81%
Built Before 1986
44%
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. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

When a city's housing median build year is 1966, as in Saint Thomas, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.

1966
Median Year Built
81%
Pre-1986 (Lead Paint Risk)
44%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (44%) 1970–1986 (37%) Post-1986 (19%)

Over half of homes in Saint Thomas were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Saint Thomas

When the numbers for Saint Thomas are taken together, the remediation share is clearly in the elevated category - most homeowners here are weighing a commitment that extends beyond routine property upkeep, and the practical value of documenting scope early, prioritizing by urgency, and mapping costs against the household budget is proportionally higher at this tier.

Median Home Value
$78,500
Est. Remediation
$2,400
Remediation as % of home value 3.1%

At 3.1% of home value, remediation costs in Saint Thomas represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $1,600–$3,300. Home values here are 55% below the North Dakota average.

Saint Thomas: Lead Risk & Vulnerable Populations

81%
Homes Built Before 1986
0.0015
mg/L Avg Lead (Limit: 0.015)

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.

Routinely in Saint Thomas, where 81% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Saint Thomas: NFIP Claim Records and Water-Quality Context

5
Total FEMA Flood Claims
$10,860
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Saint Thomas contains 5 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $10,860. 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>$2,400</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.

Frequently Asked Questions

Does Saint Thomas water have lead?
The average 90th-percentile lead level in Saint Thomas is 0.0015 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Saint Thomas?
Saint Thomas is served by 1 public water system across 1 ZIP code, serving approximately 422 people.
How much does it cost to fix water issues in Saint Thomas?
Estimated remediation costs in Saint Thomas average $2,400 per household, ranging from $1,600 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesNorth Dakota → Saint Thomas, ND

How to cite this page

APA ZipCheckup. (2026). Saint Thomas, ND Water - Home Safety Score unavailable. https://zipcheckup.com/cities/nd/saint-thomas/
BibTeX
@misc{zipcheckup-cities-nd-saint-thomas,
  author = {{ZipCheckup}},
  title  = {{Saint Thomas, ND Water - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/nd/saint-thomas/}
}

Page version: August 2026.

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