CITY REPORT SD

New Underwood, SD Home Safety: 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 2
County Radon Potential (Moderate)
$264K
Median Home Value

New Underwood Water: The Quick Version

  • Average of reported 90th-percentile lead results: 0.002 mg/L.
  • Homes built before 1986: 61% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 12.98.

Water Systems Serving New Underwood

Multiple utilities show up for New Underwood, SD: 2 are listed here out of 2 tracked federally.

Overview

We track home safety data for 1 ZIP code in New Underwood, South Dakota (population ~1,274), covering 2 community water systems serving approximately 2,117 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

New Underwood water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0020 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
57761 — Wr/lj - Creighton Project 1,170

All ZIP Codes in New Underwood

Data Sources

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

CDC Health Data for New Underwood

10.2%
Asthma (US: 9.8%)
12.1%
Diabetes (US: 10.4%)
14.8%
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 10.2% ↑
Diabetes 12.1% ↑
Mental Health 14.8% ↓

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

How Old Is New Underwood's Housing Stock?

1970
Median Build Year
61%
Built Before 1986
37%
Built Before 1970
Copper
Likely Pipe Material

With 61% 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

Median construction year in New Underwood: 1970, set against the 1986 federal lead limits for new plumbing.

1970
Median Year Built
61%
Pre-1986 (lead solder era; lead paint banned 1978)
37%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (37%) 1970–1986 (24%) Post-1986 (39%)

Over half of homes in New Underwood 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 New Underwood

61%
Homes Built Before 1986
0.002
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 New Underwood water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of New Underwood is 0.002 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 New Underwood?
Our records map 2 water systems to 1 ZIP code in New Underwood. The related population figure in our data is approximately 1,274 people; it is not a count of people served citywide.
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How to cite this page

APA ZipCheckup. (2026). New Underwood, SD Home Safety: Home Safety Score unavailable. https://zipcheckup.com/cities/sd/new-underwood/
BibTeX
@misc{zipcheckup-cities-sd-new-underwood,
  author = {{ZipCheckup}},
  title  = {{New Underwood, SD Home Safety: Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/sd/new-underwood/}
}

Page version: October 2026.

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