Dixon, CA: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Dixon in Seismic Design Category D: High seismic hazard - this is the category most of coastal California, the Pacific Northwest, and other active fault regions fall into. Code mandates significant seismic detailing and restricts irregular structural configurations. This is the category the Brace + Bolt scope (cripple-wall bracing, foundation bolting) is built for. That puts Dixon in the 88th percentile nationally for seismic hazard - higher than 88% of the 4,875 US cities USGS was checked against here.

Where Dixon sits in California

USGS's underlying values for Dixon: 0.414g peak ground acceleration, 0.99g at short period, 0.37g at 1 second. Within California alone, Dixon ranks 335 of 429 cities by seismic hazard - the 22th percentile in-state. Dixon has a population of about 20,296.

Retrofit economics for Dixon

Cripple-wall bracing and foundation bolting - the scope California's Earthquake Brace + Bolt (EBB) grant funds - typically runs $3,000-$7,000 nationally. Every qualifying household gets a $3,000 base grant, which brings that down to $0-$4,000 out of pocket; income-eligible households ($89,040/year or under) can get up to $10,000 total, covering the retrofit outright in most cases.

What this means for insurance

Dixon sits in CEA territory, but CEA earthquake coverage is agent-sold only, never direct - so the real first step for a homeowner here is a standard home-insurance quote, then asking that agent about CEA specifically.

Where Dixon's figures come from

Dixon's Category D and every number above trace to USGS's own ASCE 7-16 Design Maps service - see the methodology guide. Full Brace + Bolt eligibility rules - beyond what this page can check from a ZIP code alone - are in the retrofit cost and grant guide.