COUNTY REPORT CA

Imperial County, California

18 ZIP codes · Avg score 88/100 · Grade A

ZipCheckup grade for Imperial County: A.

Checked records flag no major concern; missing data is unknown.

High on the scale: Imperial County (18 ZIP codes).

How Imperial County Compares

Imperial County88/100
California avg76/100
National avg73/100

How Imperial County Compares

A
County Grade
88/100
Avg Safety Score
18
ZIP Codes
12
Water Systems

Imperial County scores 12 points above the California state average (76/100) and 15 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

A
County Grade
88
Avg Safety Score
18
ZIP Codes
Best ZIP: 92233 (92/100)
Lowest ZIP: 92251 (83/100)
$206K
Median Home Value
$300
Avg Remediation (0.15% of home value)

ZIP Code Risk Map

Water Quality Map: Imperial County, California

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: 12.3 (asthma 9.2%, diabetes 15%)

Modeled additional annual cost estimate per homeowner: $1,017, largest modeled factor: Flood

38% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 9.2% (national: 8.9%)
Diabetes 15% (national: 10.5%)
Obesity 34.7% (national: 32.4%)

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

Infrastructure Overview

1983
Median Build Year
38%
Pre-1980 Housing
34/100
Infrastructure Stress Indicator
24%
ZIPs with High Infrastructure Stress
Low
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: $1,017

Flood $467/yr
Sea Level Rise $400/yr
Energy Code Gap $360/yr

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

Housing Age Distribution

61,523 housing units in Imperial County

Pre-1940 3%
1940–1959 12%
1960–1979 23%
1980–1999 35%
2000+ 28%

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 Imperial County

$206K
Median Home Value
$300
Est. Remediation Cost
0.1%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Imperial 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 Imperial County residents

Asthma 9.2% (US avg: 8.9%)
Diabetes 15% (US avg: 11%)
Obesity 34.7% (US avg: 32.4%)

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

Water systems mapped to Imperial County ZIP codes

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

Show all 8 water systems

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

Systems with the most violations in Imperial County

5 water systems with violations in EPA records.

All ZIP Codes in Imperial County

18 ZIP codes tracked in Imperial County.

# ZIP Code City Safety Score Grade Violations Home Value
1 92233 Calipatria 92 A 0 $177K
2 92257 Niland 92 A 0 $113K
3 92274 Thermal 91 A 3 $140K
4 92231 Calexico 88 A 2 (1 health) $282K
5 92250 Holtville 88 A 2 (1 health) $279K
6 92227 Brawley 87 A 4 (1 health) $272K
7 92249 Heber 87 A 3 (1 health) $284K
8 92243 El Centro 83 B 6 (2 health) $286K
9 92251 Imperial 83 B 7 (2 health) $350K
10 92222 Bard — — —
11 92232 Calexico — — —
12 92244 El Centro — — —
13 92259 Ocotillo — — $159K
14 92266 Palo Verde — — —
15 92273 Seeley — — 4 (1 health) $191K
16 92275 Salton City — — $140K
17 92281 Westmorland — — $222K
18 92283 Winterhaven — — $91K

Recommended Buyer Guides for Imperial County

Which guides appear depends on what the county data show.

Overview

Imperial County in California covers 18 tracked ZIP records with an average Home Safety Score of A (88/100) across 9 scored records.

8 of 10 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 California 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 Imperial County?
Imperial County receives an average Home Safety grade of A from its scored ZIP records (18 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Imperial County?
We map 12 public water systems to 18 ZIP codes in our data for Imperial County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Imperial County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Imperial County is flood. Across all modeled risk factors, the estimated average additional annual cost is $1,017 per homeowner; actual costs vary by home.
How old are homes in Imperial County?
The median home build year in Imperial County is 1983. 38% 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 Imperial County compare to California?
Imperial County has an average Home Safety Score of 88/100 under model 4.0.0, which is at or above the California state average of 76/100.

How to cite this page

APA ZipCheckup. (2026). Imperial County, CA: HSS 88/100; 3 Health Violations. https://zipcheckup.com/county/california/imperial/
BibTeX
@misc{zipcheckup-county-california-imperial,
  author = {{ZipCheckup}},
  title  = {{Imperial County, CA: HSS 88/100; 3 Health Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/california/imperial/}
}

Page version: October 2026.

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