COUNTY REPORT SD

Codington County, South Dakota

5 ZIP codes · Avg score 65/100 · Grade C

ZipCheckup grade for Codington County: C.

A mixed picture - some signals here are worth your attention.

Within Codington County, 5 tracked ZIP codes add up to a middle-tier grade, with water records that should be checked system by system.

How Codington County Compares

Codington County65/100
South Dakota avg69/100
National avg73/100

How Codington County Compares

C
County Grade
65/100
Avg Safety Score
5
ZIP Codes
4
Water Systems

Codington County scores 4 points below the South Dakota state average (69/100) and 8 points below the national average (73/100).

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

C
County Grade
65
Avg Safety Score
5
ZIP Codes
Best ZIP: 57201 (65/100)
Lowest ZIP: 57263 (65/100)
$124K
Median Home Value

ZIP Code Risk Map

Water Quality Map: Codington County, South Dakota

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: 13.4 (asthma 10.2%, diabetes 12.1%)

Modeled additional annual cost estimate per homeowner: $1,022, largest modeled factor: Flood

49% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.2% (national: 8.9%)
Diabetes 12.1% (national: 10.5%)
Obesity 35.9% (national: 32.4%)

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

Infrastructure Overview

1958
Median Build Year
49%
Pre-1980 Housing
46/100
Infrastructure Stress Indicator
60%
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: $1,022

Flood $1,067/yr
Water / Lead $275/yr
Energy Code Gap $162/yr

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

Housing Age Distribution

13,168 housing units in Codington County

Pre-1940 16%
1940–1959 12%
1960–1979 21%
1980–1999 22%
2000+ 28%

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

Health Outcomes vs National Average

CDC PLACES data for Codington County residents

Asthma 10.2% (US avg: 8.9%)
Diabetes 12.1% (US avg: 11%)
Obesity 35.9% (US avg: 32.4%)

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

Water systems mapped to Codington County ZIP codes

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

Systems with the most violations in Codington County

2 water systems with violations in EPA records.

All ZIP Codes in Codington County

5 ZIP codes tracked in Codington County.

# ZIP Code City Safety Score Grade Violations Home Value
1 57201 Watertown 65 C 4 $224K
2 57263 South Shore 65 C 4 $102K
3 57235 Florence — — 3 $224K
4 57243 Henry — — 3 $117K
5 57245 Kranzburg — — $124K

Recommended Buyer Guides for Codington County

When no specific signal shows up in the records, the list falls back to general water testing and filtration guides rather than staying empty.

Overview

Codington County in South Dakota covers 5 tracked ZIP records with an average Home Safety Score of C (65/100) across 2 scored records.

4 of 4 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 South Dakota Home Safety Profile

Data Sources

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

Frequently Asked Questions

Is water safe in Codington County?
Codington County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Codington County?
We map 4 public water systems to 5 ZIP codes in our data for Codington County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Codington County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Codington County is flood. Across all modeled risk factors, the estimated average additional annual cost is $1,022 per homeowner; actual costs vary by home.
How old are homes in Codington County?
The median home build year in Codington County is 1958. 49% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does Codington County compare to South Dakota?
Codington County has an average Home Safety Score of 65/100 under model 4.0.0, which is below the South Dakota state average of 69/100.

How to cite this page

APA ZipCheckup. (2026). Codington County, SD: HSS 65/100; 4 Violations. https://zipcheckup.com/county/south-dakota/codington/
BibTeX
@misc{zipcheckup-county-south-dakota-codington,
  author = {{ZipCheckup}},
  title  = {{Codington County, SD: HSS 65/100; 4 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/south-dakota/codington/}
}

Page version: October 2026.

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