Lake County, Oregon
11 ZIP codes · Avg score 60/100 · Grade C · Updated 2026-06-03
Across Lake County's 11 ZIP codes, water safety results are uneven — a portion of systems carry active or recent violations, while others meet standards without issues.
How Lake County Compares
How Lake County Compares
Lake County scores 18 points below the Oregon state average (78/100) and 8 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Lake County, Oregon
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.1 (asthma 12%, diabetes 14.3%)
Estimated additional annual cost per homeowner: $895, driven primarily by energy_code_gap
Infrastructure: 0.335% avg pipe failure probability, 27% of ZIPs at high risk
58.3% of homes built before 1978 (lead paint era)
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: $895
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
4,417 housing units in Lake 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 Lake County
Remediation costs are relatively manageable for most homeowners in Lake 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 Lake County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 3 systems in Lake County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | LAKEVIEW, CITY OF | 2,476 | 7 |
| 2 | City of Paisley, | 245 | 4 |
| 3 | CHRISTMAS VALLEY DOMESTIC WS | 950 | 1 |
All ZIP Codes in Lake County
11 ZIP codes tracked in Lake County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 97641 | Christmas Valley | 83 | B | 1 | — |
| 2 | 97636 | Paisley | 81 | B | 4 | $205K |
| 3 | 97630 | Lakeview | 70 | B | 7 (1 health) | $224K |
| 4 | 97620 | Adel | 53 | D | 0 | — |
| 5 | 97635 | New Pine Creek | 53 | D | 0 | $203K |
| 6 | 97637 | Plush | 53 | D | 0 | — |
| 7 | 97638 | Silver Lake | 53 | D | 0 | — |
| 8 | 97640 | Summer Lake | 53 | D | 0 | $225K |
| 9 | 97712 | Brothers | 53 | D | 0 | — |
| 10 | 97735 | Fort Rock | 53 | D | 0 | — |
| 11 | 97758 | Riley | 53 | D | 0 | — |
Recommended Buyer Guides for Lake County
Four sources — EPA, NSF, FEMA, CDC — drive the match.
- Best Lead Paint Test Kits — 58.3% of homes built before 1978
Deep Dive Reports
Detailed analysis for Lake County, Oregon
Overview
Lake County in Oregon covers 11 ZIP codes with an average Home Safety Score of C (60/100).
3 of 11 ZIP codes have recorded EPA violations. 1 health-based violation 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.