COUNTY REPORT IA

Sioux County, Iowa

13 ZIP codes · Home Safety Score unavailable · 0 of 13 tracked ZIP records scored

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

Unavailable
0 of 13 tracked ZIP records scored
13
ZIP Codes
$223K
Median Home Value

ZIP Code Risk Map

Water Quality Map: Sioux County, Iowa

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 11.9 (asthma 9.6%, diabetes 9.8%)

Modeled additional annual cost estimate per homeowner: $583, largest modeled factor: Flood

65% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 9.6% (national: 8.9%)
Diabetes 9.8% (national: 10.5%)
Obesity 33% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1965
Median Build Year
65%
Pre-1980 Housing
53/100
Infrastructure Stress Indicator
100%
ZIPs with High Infrastructure Stress
High
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $583

Flood $400/yr
Energy Code Gap $291/yr
Water / Lead $233/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

13,144 housing units in Sioux County

Pre-1940 23%
1940–1959 13%
1960–1979 29%
1980–1999 18%
2000+ 18%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Health Outcomes vs National Average

CDC PLACES data for Sioux County residents

Asthma 9.6% (US avg: 8.9%)
Diabetes 9.8% (US avg: 11%)
Obesity 33% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems mapped to Sioux County ZIP codes

5 community water systems mapped to Sioux County ZIP codes; EPA may list more systems serving the county.

Systems with the most violations in Sioux County

2 water systems with violations in EPA records.

All ZIP Codes in Sioux County

13 ZIP codes tracked in Sioux County.

# ZIP Code City Safety Score Grade Violations Home Value
1 51003 Alton — — $226K
2 51011 Chatsworth — — —
3 51022 Granville — — $169K
4 51023 Hawarden — — $149K
5 51027 Ireton — — 2 $219K
6 51036 Maurice — — 2 $242K
7 51041 Orange City — — 0 $254K
8 51234 Boyden — — $208K
9 51238 Hospers — — $176K
10 51239 Hull — — 3 $231K
11 51244 Matlock — — $90K
12 51247 Rock Valley — — 2 $238K
13 51250 Sioux Center — — 3 $286K

Recommended Buyer Guides for Sioux County

Up to five guides, picked by rule.

Overview

Sioux County in Iowa covers 13 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.

5 of 6 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.

← Back to Iowa Home Safety Profile

Data Sources

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

Frequently Asked Questions

How many water systems serve Sioux County?
We map 5 public water systems to 13 ZIP codes in our data for Sioux County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Sioux County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Sioux County is flood. Across all modeled risk factors, the estimated average additional annual cost is $583 per homeowner; actual costs vary by home.
How old are homes in Sioux County?
The median home build year in Sioux County is 1965. 65% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Sioux County, Iowa Home Safety Profile. https://zipcheckup.com/county/iowa/sioux/
BibTeX
@misc{zipcheckup-county-iowa-sioux,
  author = {{ZipCheckup}},
  title  = {{Sioux County, Iowa Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/iowa/sioux/}
}

Page version: October 2026.

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