Humboldt County, California
38 ZIP codes · Avg score 99/100 · Grade A
ZipCheckup grade for Humboldt County: A.
Checked records flag no major concern; missing data is unknown.
High on the scale: Humboldt County (38 ZIP codes).
How Humboldt County Compares
How Humboldt County Compares
Humboldt County scores 23 points above the California state average (76/100) and 26 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
ZIP Code Risk Map
Water Quality Map: Humboldt County, California
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.8 (asthma 11%, diabetes 11.4%)
Modeled additional annual cost estimate per homeowner: $4,036, largest modeled factor: Sea Level
60% 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: $4,036
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
62,494 housing units in Humboldt 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 Humboldt County
Modeled remediation costs in Humboldt 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 Humboldt County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Humboldt County ZIP codes
8 community water systems mapped to Humboldt County ZIP codes; EPA may list more systems serving the county.
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Show all 8 water systems
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12 water systems mapped to Humboldt County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Humboldt County
3 water systems with violations in EPA records.
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All ZIP Codes in Humboldt County
38 ZIP codes tracked in Humboldt County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 95501 | Eureka | 100 | A | 0 | $390K |
| 2 | 95503 | Eureka | 100 | A | 0 | $412K |
| 3 | 95524 | Bayside | 100 | A | 0 | $585K |
| 4 | 95537 | Fields Landing | 100 | A | 0 | $360K |
| 5 | 95540 | Fortuna | 100 | A | 0 | $362K |
| 6 | 95562 | Rio Dell | 100 | A | 0 | $311K |
| 7 | 95589 | Whitethorn | 100 | A | 0 | $439K |
| 8 | 95521 | Arcata | 99 | A | 1 | $479K |
| 9 | 95525 | Blue Lake | 99 | A | 1 | $490K |
| 10 | 95519 | Mckinleyville | 98 | A | 2 | $433K |
| 11 | 95546 | Hoopa | 95 | A | 3 (1 health) | $253K |
| 12 | 95502 | Eureka | — | — | — | |
| 13 | 95511 | Alderpoint | — | — | — | |
| 14 | 95514 | Blocksburg | — | — | — | |
| 15 | 95518 | Arcata | — | — | — | |
| 16 | 95526 | Bridgeville | — | — | $338K | |
| 17 | 95528 | Carlotta | — | — | $515K | |
| 18 | 95534 | Cutten | — | — | — | |
| 19 | 95536 | Ferndale | — | — | 0 | $571K |
| 20 | 95542 | Garberville | — | — | 0 | $414K |
| 21 | 95545 | Honeydew | — | — | 0 | $480K |
| 22 | 95547 | Hydesville | — | — | 0 | $489K |
| 23 | 95549 | Kneeland | — | — | 0 | $661K |
| 24 | 95550 | Korbel | — | — | 1 | $857K |
| 25 | 95551 | Loleta | — | — | 0 | $470K |
| 26 | 95553 | Miranda | — | — | 0 | $438K |
| 27 | 95554 | Myers Flat | — | — | $431K | |
| 28 | 95555 | Orick | — | — | 3 (1 health) | $400K |
| 29 | 95556 | Orleans | — | — | 3 (1 health) | $324K |
| 30 | 95558 | Petrolia | — | — | — | |
| 31 | 95559 | Phillipsville | — | — | — | |
| 32 | 95560 | Redway | — | — | $364K | |
| 33 | 95564 | Samoa | — | — | 0 | $422K |
| 34 | 95565 | Scotia | — | — | 0 | $350K |
| 35 | 95569 | Redcrest | — | — | 0 | $433K |
| 36 | 95570 | Trinidad | — | — | 1 | $599K |
| 37 | 95571 | Weott | — | — | 0 | — |
| 38 | 95573 | Willow Creek | — | — | 3 (1 health) | $337K |
Recommended Buyer Guides for Humboldt County
The mix of guides changes from county to county.
- Best Lead Paint Test Kits — 60% of homes built before 1980
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Humboldt County, California
Overview
Humboldt County in California covers 38 tracked ZIP records with an average Home Safety Score of A (99/100) across 11 scored records.
9 of 27 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation 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.