Jefferson County, Oregon
3 ZIP codes · Avg score 73/100 · Grade B · Updated 2026-06-03
Water systems in Jefferson County serve 3 ZIP codes with few reported safety events.
How Jefferson County Compares
How Jefferson County Compares
Jefferson County scores 5 points below the Oregon state average (78/100) and 5 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 13.8 (asthma 12.1%, diabetes 13.4%)
Estimated additional annual cost per homeowner: $2,000, driven primarily by wildfire
Infrastructure: 0.323% avg pipe failure probability
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: $2,000
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
6,201 housing units in Jefferson 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 Jefferson County
Remediation costs are relatively manageable for most homeowners in Jefferson 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 Jefferson 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 Jefferson County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Metolius Meadows Prop Owners | 285 | 2 |
| 2 | Deschutes Valley Water District | 11,700 | 1 |
| 3 | City of Madras, | 3,940 | 1 |
All ZIP Codes in Jefferson County
3 ZIP codes tracked in Jefferson County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 97741 | Madras | 83 | B | 1 | $309K |
| 2 | 97730 | Camp Sherman | 82 | B | 2 | $625K |
| 3 | 97761 | Warm Springs | 53 | D | 0 | $151K |
Recommended Buyer Guides for Jefferson County
Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance — guides surface only when county data warrants them.
- Best Lead Paint Test Kits — 58.3% of homes built before 1978
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Overview
Jefferson County in Oregon covers 3 ZIP codes with an average Home Safety Score of B (73/100).
2 of 3 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← 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.