Compare · WA · CA
ZIP 98109 vs ZIP 94131
Seattle (Queen Anne), WA compared to San Francisco (Twin Peaks), CA on twelve public-records dimensions sourced from EPA, FEMA, USDA, FBI, NCES, and county records. Each cell links to the per-ZIP topic page where the source citation and refresh cadence live.
Last verified 2026-05-13 · methodology
Side by side
| Dimension | ZIP 98109 | ZIP 94131 |
|---|---|---|
| Water quality EPA SDWIS | Open water quality for 98109 → | Open water quality for 94131 → |
| Flood zone FEMA NFHL | Open flood zone for 98109 → | Open flood zone for 94131 → |
| Wildfire risk USDA Forest Service | Open wildfire risk for 98109 → | Open wildfire risk for 94131 → |
| Air quality EPA AirNow | Open air quality for 98109 → | Open air quality for 94131 → |
| Crime FBI UCR | Open crime for 98109 → | Open crime for 94131 → |
| Schools NCES Common Core | Open schools for 98109 → | Open schools for 94131 → |
| Radon EPA Radon Zones | Open radon for 98109 → | Open radon for 94131 → |
| Lead pipes EPA LCRR / RTI | Open lead pipes for 98109 → | Open lead pipes for 94131 → |
| Property tax County assessor | Open property tax for 98109 → | Open property tax for 94131 → |
| Deed activity County recorder | Open deed activity for 98109 → | Open deed activity for 94131 → |
| Zoning Municipal planning | Open zoning for 98109 → | Open zoning for 94131 → |
| Sex offender registry NSOPW (deep-link) | Open sex offender registry for 98109 → | Open sex offender registry for 94131 → |
Dimensions populate live as ingestion reaches each source. Every row will link to the primary regulator.
Washington context
Wildfire (eastern), Cascadia seismic, coastal flood
Washington's wildfire risk concentrates in eastern WA + the Cascades. Cascadia subduction zone shapes long-term seismic risk. Puget Sound coastal flood zones face Risk Rating 2.0 pressure. Seattle has documented LCRR lead-service-line obligations.
California context
Wildfire (WUI), seismic, water-supply variability
California carries the highest concentrated WUI wildfire risk in the US per USFS WHP, with FAIR Plan + non-renewal pressure intensifying since 2017 fires. FEMA NFHL coverage is strong; drinking-water systems vary from large urban (LADWP, EBMUD) to small disadvantaged community systems flagged in EPA SDWIS. Radon risk is mostly Zone 2-3.
Read more on cross-ZIP comparisons
Editorial deep-dives that help when reading two places side-by-side — what each data layer actually proves, and what it doesn't.
Flood zones explained — what AE, X, and VE actually mean
Plain-English guide to FEMA flood-zone codes (A, AE, AH, V, VE, X, X-shaded). What the 1% and 0.2% annual-chance zones mean for your property and your insurance.
EPA Radon Zones — what 1, 2, and 3 mean and when you should test
EPA classifies every US county into Zone 1 (high), Zone 2 (moderate), or Zone 3 (low) for radon. Plain-English guide to the classifications and at-home testing.
FBI UCR and NIBRS — what crime statistics actually show (and don't)
The FBI's Uniform Crime Reporting (UCR) program and its successor NIBRS aggregate crime data from local agencies. Plain-English guide to what gets reported, what doesn't, and how to read the numbers.
Lead and Copper Rule 2024 — the federal lead-pipe inventory mandate
The 2024 Lead and Copper Rule Revisions (LCRR) require every US community water system to inventory and report lead service lines. Plain-English guide.
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