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San Francisco, CA

San Francisco climate and natural hazard risk

Climate and natural hazard risk indicators sourced from the FEMA National Risk Index, mapped to the city's primary county.

FEMA NRI risk classification

Very High

Mapped to San Francisco County.

Rating 5 / 5Climate risk 98 / 100
Abstract concentric hazard-zone rings around a center marker, in muted accessible colors.
1959 United States map showing the service areas of federal hurricane warning offices.

Image: Wikimedia Commons (U.S. Weather Bureau) · United States Weather Bureau · Public domain

Hazard and resilience context only. Not a property-level risk assessment.

We're Here, Before, During and After Disasters — Video: YouTube — FEMA · FEMA · Public domain (U.S. federal government work) — embed via YouTube

Known limitation

This climate-risk report is mapped at the primary county for the city — FEMA also publishes the National Risk Index at census-tract resolution, which Phase 4A does not yet use. Treat these scores as county-level context, not as property-level risk prediction. Housing BuildDesignHub does not claim live or property-specific climate risk.

What this report covers

Climate and natural hazard risk indicators sourced from the FEMA National Risk Index, mapped to the city's primary county. Each value is attributed to its public source.

Coverage for this report: 100% (5/5 required metrics).

See methodology for how each signal is computed.

Data freshness

Static source fixture

fixtureStale
Retrieved
2026-05-21
Latest source release
2025-03-12

Static source fixtures bundled with the repo — not live. Replace with scheduled-ETL artifacts to flip provenance to live.

Sources

  • American Community Survey

    U.S. Census Bureau

    fixturefresh

    ACS 5-Year Estimates

    Confidence
    high
    Cadence
    annually
    Release
    2024-12-12
    Retrieved
    2026-05-21
    Open source ↗

  • House Price Index

    Federal Housing Finance Agency

    fixturestale

    FHFA HPI — All-Transactions (NSA), MSA

    Confidence
    high
    Cadence
    quarterly
    Release
    2025-02-25
    Retrieved
    2026-05-21
    Open source ↗

  • Building Permits Survey

    U.S. Census Bureau

    fixturestale

    Census BPS — Monthly metro permits

    Confidence
    high
    Cadence
    monthly
    Release
    2025-02-19
    Retrieved
    2026-05-21
    Open source ↗

  • FEMA National Risk Index

    Federal Emergency Management Agency

    fixturestale

    National Risk Index — county-level

    Confidence
    high
    Cadence
    annually
    Release
    2023-03-23
    Retrieved
    2026-05-21
    Open source ↗

  • BLS Local Area Unemployment Statistics

    Bureau of Labor Statistics

    fixturestale

    Local Area Unemployment Statistics — county

    Confidence
    high
    Cadence
    monthly
    Release
    2025-03-12
    Retrieved
    2026-05-21
    Open source ↗

  • BEA Regional Economic Accounts

    Bureau of Economic Analysis

    fixturefresh

    Regional Economic Accounts — MSA

    Confidence
    high
    Cadence
    annually
    Release
    2024-11-14
    Retrieved
    2026-05-21
    Open source ↗