CITY REPORT SD

Delmont, SD: High Radon Risk - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
0
ZIPs with Violations
Zone 1
Radon Risk (High)
$151K
Median Home Value
$1,200
Est. Remediation (0.8% of home value)

Delmont Water: The Quick Version

  • Average lead level: 0.004 mg/L.
  • Homes built before 1986: 78% - older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 14.48 - above typical levels.

Water Systems Serving Delmont

2 water utilities share the residential service territory in Delmont, SD - out of 2 total systems in federal 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 lead level (90th percentile): 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

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
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). Water contamination can correlate with respiratory and chronic health conditions.

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
67%
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. 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

While newer cities carry lower aggregate plumbing risk from lead-era construction, Delmont sits firmly in the older category. The median build year of 1943 indicates that more than half the housing stock was built before 1986, when lead solder was still legally used in residential copper plumbing - and a substantial portion likely predates 1970, when lead pipes were still commonly installed for service lines. These two thresholds together define the elevated plumbing risk environment that older housing cities carry, independent of what the municipal water supply delivers to the meter.

1943
Median Year Built
78%
Pre-1986 (Lead Paint Risk)
67%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (67%) 1970–1986 (11%) Post-1986 (22%)

Over half of homes in Delmont 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.

Delmont: Remediation Cost in Perspective

In Delmont, property values comfortably outpace what documented remediation typically costs - the equity share is proportionally low.

Median Home Value
$150,700
Est. Remediation
$1,200
Remediation as % of home value 0.8%

Remediation costs in Delmont are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 14% below the South Dakota average.

Protecting Children from Lead in Delmont

78%
Homes Built Before 1986
0.004
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.

Reading the local data together points toward a structural gap that matters more here than in low-exposure communities. 78% of Delmont stock comes from the pre-rule era, and citywide monitoring either approaches or sits beyond the federal benchmark under Lead and Copper Rule sampling. A baseline kit fits the routine-diligence category, with certified filtration available via retailer networks where confirmed faucet results warrant additional measures.

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 90th-percentile lead level in Delmont is 0.004 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 Delmont?
Delmont is served by 2 public water systems across 1 ZIP code, serving approximately 548 people.
How much does it cost to fix water issues in Delmont?
Estimated remediation costs in Delmont average $1,200 per household, ranging from $800 to $1,500. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesSouth Dakota → Delmont, SD

How to cite this page

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

Page version: August 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.