Lead Paint Risk in San Juan County, Washington
36.8%Pre-1978 Housing
5,129Pre-1978 Units
13,951Total Housing Units
9Census Tracts
How to Interpret This
This is an area-level screening signal based on Census housing-age data. It does not confirm lead paint in any specific home. Homes built before 1978 may contain lead-based paint, and certified inspection or testing is the only way to confirm a property-level hazard.
Reporter / Resident Story Kit
- 5,129 housing units in San Juan County were built before 1978.
- The county's pre-1978 housing share is 36.8%, compared with the state rate of 44.4%.
- Local questions: Which neighborhoods have the oldest housing stock? Are lead-safe renovation resources available? Do renters and families with young children know how to request testing?
Highest-Risk Census Tracts
Individual census tracts ranked by pre-1978 housing percentage. Showing the top 9 of 9 tracts; download the full county tract CSV.
| Tract | Pre-1978 | Total | Risk Rate | 1970s | 1960s | 1950s | 1940s | ≤1939 |
|---|---|---|---|---|---|---|---|---|
| Census Tract 9605.02 | 976 | 1,916 | 50.9% | 430 | 284 | 162 | 10 | 90 |
| Census Tract 9601.03 | 590 | 1,388 | 42.5% | 310 | 99 | 60 | 33 | 88 |
| Census Tract 9605.01 | 563 | 1,491 | 37.8% | 242 | 155 | 62 | 37 | 67 |
| Census Tract 9601.02 | 372 | 1,009 | 36.9% | 244 | 34 | 35 | 15 | 44 |
| Census Tract 9604 | 738 | 2,014 | 36.6% | 300 | 114 | 118 | 80 | 126 |
| Census Tract 9601.01 | 760 | 2,149 | 35.4% | 361 | 137 | 81 | 43 | 138 |
| Census Tract 9603.02 | 497 | 1,488 | 33.4% | 338 | 40 | 38 | 11 | 70 |
| Census Tract 9603.01 | 633 | 2,496 | 25.4% | 344 | 166 | 53 | 8 | 62 |
| Census Tract 9901 | 0 | 0 | 0.0% | 0 | 0 | 0 | 0 | 0 |