Listings whose style is Second Empire or any style under it, from the nomination form, NRIS, the Atlas, Wikidata or a model reading of the text. Style under Late Victorian. Typical range 1855–1885. Also called Mansard. Cities of 250,000-499,999 residents, ordered by the adjusted rate of listings per 10,000 residents, with the raw rate beside it. Open in the explorer to rank by another measure, or open it live in Explore to narrow it further.
Coverage. Style comes from the National Register index, Wikidata and, where the nomination text has been read, from the text itself. Nominations have been read for 37 states and the District of Columbia so far, so 47 of the 50 cities ranked here are in a state already read. This will shift as the rest are read.