Hudsonville, MI: what USGS's seismic model says
USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Hudsonville in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Hudsonville ranks above 22% of the 4,875 cities in this dataset for seismic hazard - the 22th percentile.
How Hudsonville compares
The raw figures: peak ground acceleration 0.042g, short-period spectral response 0.087g, 1-second spectral response 0.047g. Among 153 Michigan cities in this dataset, Hudsonville ranks 104 for seismic hazard, the 32th percentile within the state. About 7,985 people live in Hudsonville, Michigan.
Bracing and bolting: the actual cost
Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Michigan. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.
Earthquake insurance for a Hudsonville home
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 Hudsonville address.
More on how this number was built
The methodology guide covers exactly how USGS's public design-maps API produced Hudsonville'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.