Willow Park, TX: what USGS's seismic model says
Willow Park carries Seismic Design Category B under USGS's ASCE 7-16 model. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Rank it against the rest of the country and Willow Park sits at the 23th percentile for seismic hazard among 4,875 US cities.
Willow Park by the numbers
The raw figures: peak ground acceleration 0.043g, short-period spectral response 0.09g, 1-second spectral response 0.049g. Among 384 Texas cities in this dataset, Willow Park ranks 141 for seismic hazard, the 63th percentile within the state. About 6,851 people live in Willow Park, Texas.
What a retrofit costs in Willow Park
Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Texas. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.
Insuring against this, not just retrofitting
Outside California, earthquake coverage is typically sold as an endorsement added to a standard homeowners policy, not a separate product - worth asking about directly when getting a home-insurance quote for a Willow Park address.
More on how this number was built
The methodology guide covers exactly how USGS's public design-maps API produced Willow Park's numbers. The guide to what a Seismic Design Category actually means covers why a category is never a substitute for an engineer's assessment of one specific house.