COUNTY REPORT WI

Oneida County, Wisconsin

10 ZIP codes · Home Safety Score unavailable · 0 of 10 tracked ZIP records scored · Updated

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

Unavailable
0 of 10 tracked ZIP records scored
10
ZIP Codes
$264K
Median Home Value
$1,170
Avg Remediation (44% of home value)

ZIP Code Risk Map

Water Quality Map: Oneida County, Wisconsin

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: 14.3 (asthma 10.4%, diabetes 13.8%)

Estimated additional annual cost per homeowner: $663, driven primarily by energy_code_gap

57.8% of homes built before 1978 (lead paint era)

Violation History (2024–2025)

→ Stable trend

EPA violation counts by year across Oneida County water systems. Health-based shown in red, total in blue.

2024
6 (6 health)
2025
1 (1 health)

Peak year: 2024 with 6 violations. Past 5 years: 7 total (7 health-based).

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 10.4% (national: 8.9%)
Diabetes 13.8% (national: 10.5%)
Obesity 35.2% (national: 32.4%)

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

Infrastructure Overview

1973
Median Build Year
57.8%
Pre-1978 Housing
41/100
Infrastructure Stress Indicator
67%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

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

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $663

Energy Code Gap $270/yr
Flood $200/yr
Water / Lead $161/yr

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

Housing Age Distribution

34,732 housing units in Oneida County

Pre-1940 9%
1940–1959 15%
1960–1979 26%
1980–1999 31%
2000+ 19%

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

Water Safety Affordability

How much it costs to fix water issues relative to home values in Oneida County

$264K
Median Home Value
$1,170
Est. Remediation Cost
0.4%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Oneida County, representing a small fraction of property value.

Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.

Health Outcomes vs National Average

CDC PLACES data for Oneida County residents

Asthma 10.4% (US avg: 8.9%)
Diabetes 13.8% (US avg: 11%)
Obesity 35.2% (US avg: 32.4%)

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

Water systems serving Oneida County

4 community water systems serving Oneida County.

Systems with the most violations in Oneida County

4 water systems with recorded EPA violations.

All ZIP Codes in Oneida County

10 ZIP codes tracked in Oneida County.

# ZIP Code City Safety Score Grade Violations Home Value
1 54463 Pelican Lake $232K
2 54501 Rhinelander 2 (1 health) $195K
3 54521 Eagle River 3 (1 health) $276K
4 54529 Harshaw $264K
5 54531 Hazelhurst $323K
6 54539 Lake Tomahawk 6 (1 health) $241K
7 54543 Mc Naughton
8 54548 Minocqua 6 (1 health) $308K
9 54562 Three Lakes 9 (1 health) $292K
10 54564 Tripoli $171K

Recommended Buyer Guides for Oneida County

Strictly editorial - no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.

Overview

Oneida County in Wisconsin covers 10 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 5 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 4 health-based violations appear in the available health breakdown.

← Back to Wisconsin 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 Oneida County?
Oneida County is served by 4 public water systems that supply drinking water to residents across 10 ZIP codes.
What is the biggest environmental risk in Oneida County?
The primary environmental risk factor in Oneida County is energy_code_gap. This contributes to an estimated additional annual cost of $663 per homeowner.
How old are homes in Oneida County?
The median home build year in Oneida County is 1973. 57.8% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Oneida County, Wisconsin Home Safety Profile. https://zipcheckup.com/county/wisconsin/oneida/
BibTeX
@misc{zipcheckup-county-wisconsin-oneida,
  author = {{ZipCheckup}},
  title  = {{Oneida County, Wisconsin Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/wisconsin/oneida/}
}

Page version: August 2026.

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