Madera County, California
13 ZIP codes · Avg score 76/100 · Grade B
ZipCheckup grade for Madera County: B.
This ZIP has a few items worth a quick check.
A high composite grade for Madera County is a summary of data, not a water test, so check the report for your own ZIP code among the 13 listed.
How Madera County Compares
How Madera County Compares
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Madera County, California
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.1 (asthma 10.4%, diabetes 13.5%)
Modeled additional annual cost estimate per homeowner: $2,065, largest modeled factor: Wildfire
39% of homes built before 1980 (lead paint was banned for residential use in 1978)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
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: $2,065
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
49,612 housing units in Madera County
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 Madera County
Modeled remediation costs in Madera 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 Madera County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Madera County ZIP codes
8 community water systems mapped to Madera County ZIP codes; EPA may list more systems serving the county.
- B
- C
- D
- B
- B
- B
Show all 8 water systems
- B
- B
12 water systems mapped to Madera County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Madera County
2 water systems with violations in EPA records.
- D
- B
All ZIP Codes in Madera County
13 ZIP codes tracked in Madera County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 93604 | Bass Lake | 83 | B | 0 | $1043K |
| 2 | 93636 | Madera | 83 | B | 0 | $483K |
| 3 | 93637 | Madera | 83 | B | 1 | $369K |
| 4 | 93638 | Madera | 83 | B | 0 | $292K |
| 5 | 93644 | Oakhurst | 83 | B | 0 | $378K |
| 6 | 93610 | Chowchilla | 67 | C | 0 | $342K |
| 7 | 93614 | Coarsegold | 52 | D | 17 (9 health) | $355K |
| 8 | 93601 | Ahwahnee | — | — | $393K | |
| 9 | 93639 | Madera | — | — | — | |
| 10 | 93643 | North Fork | — | — | $339K | |
| 11 | 93645 | O Neals | — | — | 0 | $367K |
| 12 | 93653 | Raymond | — | — | $518K | |
| 13 | 93669 | Wishon | — | — | $290K |
Recommended Buyer Guides for Madera County
Up to five guides, picked by rule.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Madera County, California
Overview
Madera County in California covers 13 tracked ZIP records with an average Home Safety Score of B (76/100) across 7 scored records.
2 of 8 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 9 health-based violations appear in the available health breakdown.
← Back to California Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.