COUNTY REPORT CA

Butte County, California

26 ZIP codes · Avg score 86/100 · Grade A

ZipCheckup grade for Butte County: A.

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

An upper-band grade for Butte County is an average, and averages can hide variation, so the 26 ZIP-level reports are worth checking one by one.

How Butte County Compares

Butte County86/100
California avg76/100
National avg73/100

How Butte County Compares

A
County Grade
86/100
Avg Safety Score
26
ZIP Codes
12
Water Systems

Butte County scores 10 points above the California state average (76/100) and 13 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
86
Avg Safety Score
26
ZIP Codes
Best ZIP: 95966 (100/100)
Lowest ZIP: 95973 (79/100)
$400K
Median Home Value
$657
Avg Remediation (0.16% of home value)

ZIP Code Risk Map

Water Quality Map: Butte 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: 12.1 (asthma 10.5%, diabetes 10.7%)

Modeled additional annual cost estimate per homeowner: $2,129, largest modeled factor: Wildfire

50% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.5% (national: 8.9%)
Diabetes 10.7% (national: 10.5%)
Obesity 29.3% (national: 32.4%)

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

Infrastructure Overview

1975
Median Build Year
50%
Pre-1980 Housing
42/100
Infrastructure Stress Indicator
61%
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: $2,129

Wildfire $1,200/yr
Flood $720/yr
Energy Code Gap $518/yr

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

Housing Age Distribution

93,287 housing units in Butte County

Pre-1940 7%
1940–1959 15%
1960–1979 28%
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 Butte County

$400K
Median Home Value
$657
Est. Remediation Cost
0.2%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Butte 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 Butte County residents

Asthma 10.5% (US avg: 8.9%)
Diabetes 10.7% (US avg: 11%)
Obesity 29.3% (US avg: 32.4%)

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

Water systems mapped to Butte County ZIP codes

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

Show all 8 water systems

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

Systems with the most violations in Butte County

5 water systems with violations in EPA records.

All ZIP Codes in Butte County

26 ZIP codes tracked in Butte County.

# ZIP Code City Safety Score Grade Violations Home Value
1 95966 Oroville 100 A 1 $309K
2 95969 Paradise 100 A 1 $420K
3 95928 Chico 83 B 1 $477K
4 95965 Oroville 83 B 2 $296K
5 95926 Chico 79 B 4 (1 health) $463K
6 95948 Gridley 79 B 2 (1 health) $344K
7 95973 Chico 79 B 4 (1 health) $485K
8 95914 Bangor — — 0 $424K
9 95915 Belden — — —
10 95916 Berry Creek — — $257K
11 95917 Biggs — — 2 (1 health) $381K
12 95923 Canyon Dam — — $729K
13 95927 Chico — — —
14 95929 Chico — — 0 —
15 95930 Clipper Mills — — —
16 95938 Durham — — $532K
17 95940 Feather Falls — — —
18 95941 Forbestown — — 0 $196K
19 95942 Forest Ranch — — $508K
20 95954 Magalia — — 0 $268K
21 95958 Nelson — — —
22 95967 Paradise — — —
23 95968 Palermo — — 0 $122K
24 95974 Richvale — — —
25 95976 Chico — — —
26 95978 Stirling City — — —

Recommended Buyer Guides for Butte County

These buyer guides are matched by rule rather than by hand - a PFAS record adds a PFAS filter guide, a lead action-level exceedance adds lead filter guides, a high share of pre-1978 homes adds lead paint test kits, EPA Radon Zone 1 add radon kits, and a top flood or wildfire risk adds related equipment.

Overview

Butte County in California covers 26 tracked ZIP records with an average Home Safety Score of A (86/100) across 7 scored records.

8 of 13 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 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 Butte County?
Butte County receives an average Home Safety grade of A from its scored ZIP records (26 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Butte County?
We map 12 public water systems to 26 ZIP codes in our data for Butte County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Butte County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Butte County is wildfire. Across all modeled risk factors, the estimated average additional annual cost is $2,129 per homeowner; actual costs vary by home.
How old are homes in Butte County?
The median home build year in Butte County is 1975. 50% 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 Butte County compare to California?
Butte County has an average Home Safety Score of 86/100 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). Butte County, CA: HSS 86/100; 2 Health Violations. https://zipcheckup.com/county/california/butte/
BibTeX
@misc{zipcheckup-county-california-butte,
  author = {{ZipCheckup}},
  title  = {{Butte County, CA: HSS 86/100; 2 Health Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/california/butte/}
}

Page version: October 2026.

Get safety alerts for Butte, California

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Check your water filter options Free tool - no phone call required.