Canyon County, Idaho
15 ZIP codes · Avg score 79/100 · Grade B · Updated
ZipCheckup grade for Canyon County: B.
This ZIP looks solid, with a few items worth a quick check.
EPA monitoring reports for Canyon County cover 15 ZIP codes and tell a largely reassuring story - compliance rates are high and health-based violations are far below the national norm.
How Canyon County Compares
How Canyon County Compares
Canyon County scores 7 points above the Idaho state average (72/100) and 6 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 Last verified:
ZIP Code Risk Map
Water Quality Map: Canyon County, Idaho
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.1 (asthma 10.8%, diabetes 11.2%)
Estimated additional annual cost per homeowner: $798, driven primarily by energy_code_gap
43.1% of homes built before 1978 (lead paint era)
Violation History (2023–2024)
→ Stable trendEPA violation counts by year across Canyon County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 4 violations. Past 5 years: 5 total (5 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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 DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $798
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
83,224 housing units in Canyon 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 Canyon County
Remediation costs are relatively manageable for most homeowners in Canyon 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 Canyon County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Canyon County
8 community water systems serving Canyon County.
- B
- B
- B
- B
Show all 8 water systems
- B
- C
19 total water systems serve Canyon County.
Systems with the most violations in Canyon County
5 water systems with recorded EPA violations.
- B
- C
- C
- B
- B
All ZIP Codes in Canyon County
15 ZIP codes tracked in Canyon County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 83605 | Caldwell | 83 | B | 1 | $301K |
| 2 | 83644 | Middleton | 83 | B | 0 | $392K |
| 3 | 83651 | Nampa | 80 | B | 9 (1 health) | $313K |
| 4 | 83687 | Nampa | 80 | B | 9 | $370K |
| 5 | 83607 | Caldwell | 77 | B | 21 (2 health) | $385K |
| 6 | 83686 | Nampa | 68 | C | 30 (14 health) | $382K |
| 7 | 83606 | Caldwell | — | — | — | |
| 8 | 83626 | Greenleaf | — | — | 1 | $313K |
| 9 | 83630 | Huston | — | — | — | |
| 10 | 83641 | Melba | — | — | 0 | $415K |
| 11 | 83652 | Nampa | — | — | — | |
| 12 | 83653 | Nampa | — | — | — | |
| 13 | 83656 | Notus | — | — | $239K | |
| 14 | 83660 | Parma | — | — | 1 | $364K |
| 15 | 83676 | Wilder | — | — | $311K |
Recommended Buyer Guides for Canyon County
Strictly editorial - no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Canyon County, Idaho
Overview
Canyon County in Idaho covers 15 tracked ZIP records with an average Home Safety Score of B (79/100) across 6 scored records.
7 of 9 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 17 health-based violations appear in the available health breakdown.
← Back to Idaho 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.