COUNTY REPORT WI

Milwaukee County, Wisconsin

49 ZIP codes · Avg score 82/100 · Grade B

ZipCheckup grade for Milwaukee County: B.

This ZIP has a few items worth a quick check.

Across Milwaukee County, ZIP-level Home Safety Scores average out to a grade in the top two bands; the page tracks 49 ZIP codes in all.

How Milwaukee County Compares

Milwaukee County82/100
Wisconsin avg70/100
National avg73/100

How Milwaukee County Compares

B
County Grade
82/100
Avg Safety Score
49
ZIP Codes
17
Water Systems

Milwaukee County scores 12 points above the Wisconsin state average (70/100) and 9 points above the national average (73/100).

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

B
County Grade
82
Avg Safety Score
49
ZIP Codes
Best ZIP: 53110 (83/100)
Lowest ZIP: 53217 (67/100)
$204K
Median Home Value
$3,860
Avg Remediation (1.89% of home value)

ZIP Code Risk Map

Water Quality Map: Milwaukee 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: 13.1 (asthma 11.8%, diabetes 13.1%)

Modeled additional annual cost estimate per homeowner: $1,397, largest modeled factor: Flood

81% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 11.8% (national: 8.9%)
Diabetes 13.1% (national: 10.5%)
Obesity 38.6% (national: 32.4%)

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

Infrastructure Overview

1956
Median Build Year
81%
Pre-1980 Housing
55/100
Infrastructure Stress Indicator
89%
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: $1,397

Flood $949/yr
Energy Code Gap $483/yr
Water / Lead $450/yr

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

Housing Age Distribution

423,814 housing units in Milwaukee County

Pre-1940 29%
1940–1959 29%
1960–1979 23%
1980–1999 11%
2000+ 9%

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 Milwaukee County

$204K
Median Home Value
$3,860
Est. Remediation Cost
1.9%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Milwaukee County can be compared with the median property value; actual costs vary by property.

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 Milwaukee County residents

Asthma 11.8% (US avg: 8.9%)
Diabetes 13.1% (US avg: 11%)
Obesity 38.6% (US avg: 32.4%)

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

Water systems mapped to Milwaukee County ZIP codes

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

Show all 8 water systems

17 water systems mapped to Milwaukee County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in Milwaukee County

5 water systems with violations in EPA records.

All ZIP Codes in Milwaukee County

49 ZIP codes tracked in Milwaukee County.

# ZIP Code City Safety Score Grade Violations Home Value
1 53110 Cudahy 83 B 0 $201K
2 53130 Hales Corners 83 B 2 $290K
3 53172 South Milwaukee 83 B 1 $216K
4 53202 Milwaukee 83 B 0 $298K
5 53203 Milwaukee 83 B 0 $335K
6 53204 Milwaukee 83 B 0 $106K
7 53205 Milwaukee 83 B 0 $122K
8 53206 Milwaukee 83 B 0 $71K
9 53207 Milwaukee 83 B 1 $229K
10 53208 Milwaukee 83 B 0 $196K
11 53209 Milwaukee 83 B 0 $150K
12 53210 Milwaukee 83 B 0 $153K
13 53212 Milwaukee 83 B 0 $204K
14 53213 Milwaukee 83 B 0 $311K
15 53214 Milwaukee 83 B 0 $179K
16 53215 Milwaukee 83 B 0 $148K
17 53216 Milwaukee 83 B 0 $123K
18 53218 Milwaukee 83 B 0 $122K
19 53219 Milwaukee 83 B 0 $190K
20 53220 Milwaukee 83 B 2 $219K
21 53222 Milwaukee 83 B 0 $202K
22 53224 Milwaukee 83 B 0 $195K
23 53225 Milwaukee 83 B 0 $175K
24 53226 Milwaukee 83 B 0 $301K
25 53227 Milwaukee 83 B 0 $214K
26 53228 Milwaukee 83 B 2 $255K
27 53233 Milwaukee 83 B 0 $133K
28 53295 Milwaukee 83 B 0 —
29 53132 Franklin 82 B 1 $346K
30 53154 Oak Creek 81 B 4 (1 health) $305K
31 53221 Milwaukee 81 B 4 $206K
32 53211 Milwaukee 67 C 16 (2 health) $414K
33 53217 Milwaukee 67 C 17 (2 health) $426K
34 53129 Greendale — — $288K
35 53201 Milwaukee — — —
36 53223 Milwaukee — — $184K
37 53234 Milwaukee — — —
38 53235 Saint Francis — — $207K
39 53237 Milwaukee — — —
40 53244 Milwaukee — — —
41 53259 Milwaukee — — —
42 53263 Milwaukee — — —
43 53267 Milwaukee — — —
44 53268 Milwaukee — — —
45 53274 Milwaukee — — —
46 53278 Milwaukee — — —
47 53288 Milwaukee — — —
48 53290 Milwaukee — — —
49 53293 Milwaukee — — —

Recommended Buyer Guides for Milwaukee County

Nothing on this list means a problem exists in your own home: the matches are drawn from county- and ZIP-level records, so a guide shows up because of an area signal, and only testing at your tap describes a specific household.

Overview

Milwaukee County in Wisconsin covers 49 tracked ZIP records with an average Home Safety Score of B (82/100) across 33 scored records.

10 of 33 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 3 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

Is water safe in Milwaukee County?
Milwaukee County receives an average Home Safety grade of B from its scored ZIP records (49 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Milwaukee County?
We map 17 public water systems to 49 ZIP codes in our data for Milwaukee County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Milwaukee County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Milwaukee County is flood. Across all modeled risk factors, the estimated average additional annual cost is $1,397 per homeowner; actual costs vary by home.
How old are homes in Milwaukee County?
The median home build year in Milwaukee County is 1956. 81% 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 Milwaukee County compare to Wisconsin?
Milwaukee County has an average Home Safety Score of 82/100 under model 4.0.0, which is at or above the Wisconsin state average of 70/100.

How to cite this page

APA ZipCheckup. (2026). Milwaukee County, WI: HSS 82/100; Lead Above EPA Action Level. https://zipcheckup.com/county/wisconsin/milwaukee/
BibTeX
@misc{zipcheckup-county-wisconsin-milwaukee,
  author = {{ZipCheckup}},
  title  = {{Milwaukee County, WI: HSS 82/100; Lead Above EPA Action Level}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/wisconsin/milwaukee/}
}

Page version: October 2026.

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