Tillamook County, Oregon
14 ZIP codes · Avg score 85/100 · Grade A · Updated 2026-06-03
Within Tillamook County, all 14 tracked ZIP codes show above-average drinking water safety — violations are infrequent and typically minor.
How Tillamook County Compares
How Tillamook County Compares
Tillamook County scores 7 points above the Oregon state average (78/100) and 17 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Tillamook County, Oregon
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.1 (asthma 11.9%, diabetes 13.5%)
Estimated additional annual cost per homeowner: $2,846, driven primarily by sea_level
Infrastructure: 0.355% avg pipe failure probability, 29% of ZIPs at high risk
54.8% of homes built before 1978 (lead paint era)
Violation History (2023–2024)
→ Stable trendEPA violation counts by year across Tillamook County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 9 violations. Past 5 years: 13 total (13 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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $2,846
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
18,909 housing units in Tillamook 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 Tillamook County
Remediation costs are relatively manageable for most homeowners in Tillamook 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 Tillamook County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Tillamook County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Pacific City Joint Water - San Authority | 1,000 | 46 |
| 2 | City of Rockaway Beach, | 1,400 | 31 |
| 3 | Garibaldi Water System | 837 | 31 |
| 4 | Netarts Water District | 1,800 | 30 |
| 5 | Neskowin Reg Water District | 1,735 | 25 |
24 total water systems serve Tillamook County.
All ZIP Codes in Tillamook County
14 ZIP codes tracked in Tillamook County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 97143 | Netarts | 98 | A | 10 (1 health) | — |
| 2 | 97134 | Oceanside | 95 | A | 8 (3 health) | $489K |
| 3 | 97130 | Manzanita | 94 | A | 3 | $705K |
| 4 | 97107 | Bay City | 91 | A | 6 | $342K |
| 5 | 97122 | Hebo | 91 | A | 9 (1 health) | $323K |
| 6 | 97112 | Cloverdale | 85 | A | 21 (1 health) | $429K |
| 7 | 97118 | Garibaldi | 85 | A | 10 | $308K |
| 8 | 97136 | Rockaway Beach | 85 | A | 1 | $354K |
| 9 | 97149 | Neskowin | 83 | B | 4 | $656K |
| 10 | 97147 | Wheeler | 81 | B | 11 | $412K |
| 11 | 97141 | Tillamook | 79 | B | 12 (1 health) | $376K |
| 12 | 97131 | Nehalem | 77 | B | 14 | $428K |
| 13 | 97135 | Pacific City | 76 | B | 12 | $500K |
| 14 | 97108 | Beaver | 66 | C | 0 | $467K |
Recommended Buyer Guides for Tillamook County
Below: editorial picks, no sponsored placements.
- Best Lead Paint Test Kits — 54.8% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Tillamook County, Oregon
Overview
Tillamook County in Oregon covers 14 ZIP codes with an average Home Safety Score of A (85/100).
13 of 14 ZIP codes have recorded EPA violations. 7 health-based violations have been documented.
← Back to Oregon water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.