Lake Mills, WI: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Lake Mills is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Lake Mills in the 19th percentile nationally for seismic hazard - higher than 19% of the 4,875 US cities USGS was checked against here.

How Lake Mills compares

The raw figures: peak ground acceleration 0.037g, short-period spectral response 0.076g, 1-second spectral response 0.048g. Among 157 Wisconsin cities in this dataset, Lake Mills ranks 48 for seismic hazard, the 70th percentile within the state. About 6,617 people live in Lake Mills, Wisconsin.

Retrofit economics for Lake Mills

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Wisconsin. 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 Lake Mills address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Lake Mills'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.