COUNTY REPORT IA

Black Hawk County, Iowa

15 ZIP codes · Avg score 58/100 · Grade C · Updated

ZipCheckup grade for Black Hawk County: C.

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

Within Black Hawk County, safety data across 15 ZIP codes suggests a fair but uneven system - violations are present and worth checking at the ZIP level.

How Black Hawk County Compares

Black Hawk County58/100
Iowa avg63/100
National avg73/100

How Black Hawk County Compares

C
County Grade
58/100
Avg Safety Score
15
ZIP Codes
8
Water Systems

Black Hawk County scores 5 points below the Iowa state average (63/100) and 15 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 Last verified:

C
County Grade
58
Avg Safety Score
15
ZIP Codes
Best ZIP: 50613 (67/100)
Lowest ZIP: 50701 (49/100)
$188K
Median Home Value
$2,600
Avg Remediation (139% of home value)

ZIP Code Risk Map

Water Quality Map: Black Hawk 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: 13.3 (asthma 10.4%, diabetes 11.6%)

Estimated additional annual cost per homeowner: $1,742, driven primarily by flood

71.5% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 10.4% (national: 8.9%)
Diabetes 11.6% (national: 10.5%)
Obesity 40.4% (national: 32.4%)

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

Infrastructure Overview

1974
Median Build Year
71.5%
Pre-1978 Housing
50/100
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 DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $1,742

Flood $1,292/yr
Energy Code Gap $291/yr
Water Infrastructure $239/yr

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

Housing Age Distribution

60,950 housing units in Black Hawk County

Pre-1940 19%
1940–1959 23%
1960–1979 28%
1980–1999 15%
2000+ 15%

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 Black Hawk County

$188K
Median Home Value
$2,600
Est. Remediation Cost
1.4%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Black Hawk 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 Black Hawk County residents

Asthma 10.4% (US avg: 8.9%)
Diabetes 11.6% (US avg: 11%)
Obesity 40.4% (US avg: 32.4%)

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

Water systems serving Black Hawk County

8 community water systems serving Black Hawk County.

Show all 8 water systems

Systems with the most violations in Black Hawk County

2 water systems with recorded EPA violations.

All ZIP Codes in Black Hawk County

15 ZIP codes tracked in Black Hawk County.

# ZIP Code City Safety Score Grade Violations Home Value
1 50613 Cedar Falls 67 C 0 $258K
2 50647 Janesville 67 C 0 $278K
3 50648 Jesup 67 C 0 $211K
4 50651 La Porte City 66 C 1 $173K
5 50702 Waterloo 50 D 0 $146K
6 50703 Waterloo 50 D 0 $93K
7 50707 Evansdale 50 D 0 $143K
8 50701 Waterloo 49 D 2 $183K
9 50614 Cedar Falls
10 50623 Dewar $171K
11 50626 Dunkerton $197K
12 50634 Gilbertville $188K
13 50643 Hudson $241K
14 50667 Raymond $210K
15 50704 Waterloo

Recommended Buyer Guides for Black Hawk County

Filtered against federal data, fitted to local risks.

Overview

Black Hawk County in Iowa covers 15 tracked ZIP records with an average Home Safety Score of C (58/100) across 8 scored records.

2 of 8 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

Is water safe in Black Hawk County?
Black Hawk 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 Black Hawk County?
Black Hawk County is served by 8 public water systems that supply drinking water to residents across 15 ZIP codes.
What is the biggest environmental risk in Black Hawk County?
The primary environmental risk factor in Black Hawk County is flood. This contributes to an estimated additional annual cost of $1,742 per homeowner.
How old are homes in Black Hawk County?
The median home build year in Black Hawk County is 1974. 71.5% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Black Hawk County compare to Iowa?
Black Hawk County has an average Home Safety Score of 58/100 under model 4.0.0, which is below the Iowa state average of 63/100.

How to cite this page

APA ZipCheckup. (2026). Black Hawk County, IA: HSS 58/100; 2 Violations. https://zipcheckup.com/county/iowa/black-hawk/
BibTeX
@misc{zipcheckup-county-iowa-black-hawk,
  author = {{ZipCheckup}},
  title  = {{Black Hawk County, IA: HSS 58/100; 2 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/iowa/black-hawk/}
}

Page version: August 2026.

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