North Sioux City, SD Water - Home Safety Score unavailable
1 ZIP code · 3 water systems · Updated
Data: EPA SDWIS
Key Facts for North Sioux City Residents
- Average of reported 90th-percentile lead results: 0.004 mg/L.
- Homes built before 1986: 21% - older plumbing may contain lead solder.
- Health risk index (ZipCheckup composite of CDC data): 11.98.
North Sioux City's Water Providers
Sorted by reported population served, the top 3 of 3 public water systems mapped to North Sioux City, SD appear below, each with its own federal compliance record.
Overview
We track home safety data for 1 ZIP code in North Sioux City, South Dakota, covering 3 community water systems serving approximately 7,814 people. 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
North Sioux City water systems draw from: Groundwater, 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 |
|---|---|---|---|
| 57049 | — | Dakota Dunes Cid | 3,700 |
All ZIP Codes in North Sioux City
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
North Sioux City Community Health Snapshot
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
Vertical line = national average. ■ Above national · ■ Below national
North Sioux City Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
The median build year for North Sioux City is 2008. A build year alone does not tell you what pipes or solder a home has.
Most homes in North Sioux City were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
North Sioux City: Lead Risk & Vulnerable Populations
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.
A tap test is the direct way to learn the lead level in a given North Sioux City home; 21% of local housing predates 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
North Sioux City: NFIP Claim Records and Water-Quality Context
Historical NFIP data for North Sioux City contains 362 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $36,462. 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.
Deep Dive Reports
Detailed analysis for North Sioux City, SD