CITY REPORT SD

Delmont, SD: High Radon Potential Area - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
0
ZIPs Linked to Systems with Violations
Zone 1
County Radon Potential (High)
$151K
Median Home Value

Delmont Water: The Quick Version

  • Average of reported 90th-percentile lead results: 0.004 mg/L.
  • Homes built before 1986: 78% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 14.48.

Water Systems Serving Delmont

Service in Delmont, SD can differ by address: 2 water systems are tied to the area in federal records, and the 2 largest are listed with their violation records.

Overview

We track home safety data for 1 ZIP code in Delmont, South Dakota (population ~548), covering 2 community water systems serving approximately 19,568 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

Delmont water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0040 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
57330 — Randall Community Water District 6,248

All ZIP Codes in Delmont

Data Sources

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

CDC Health Data for Delmont

10.1%
Asthma (US: 9.8%)
13.6%
Diabetes (US: 10.4%)
14.7%
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 10.1% ↑
Diabetes 13.6% ↑
Mental Health 14.7% ↓

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

How Old Is Delmont's Housing Stock?

1943
Median Build Year
78%
Built Before 1986
74%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 78% 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

Ask the water utility whether your address in Delmont has a lead service line; its inventory can answer what a median build year of 1943 cannot.

1943
Median Year Built
78%
Pre-1986 (lead solder era; lead paint banned 1978)
74%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (74%) 1970–1986 (4%) Post-1986 (22%)

Over half of homes in Delmont 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.

Protecting Children from Lead in Delmont

78%
Homes Built Before 1986
0.004
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 Delmont water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Delmont is 0.004 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 Delmont?
Our records map 2 water systems to 1 ZIP code in Delmont. The related population figure in our data is approximately 548 people; it is not a count of people served citywide.
Home → Cities → South Dakota → Delmont, SD

How to cite this page

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

Page version: October 2026.

Get safety alerts for Delmont, South 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.