The famous person Charles E. Duryea is associated with one of more of the Peoria County historic places.
Some of the country's most noteable architects helped create the Peoria County places including U.S. Army Corps of Engineers, Reeves & Baillie, William Carbys Zimmerman, Zealy Moss, Hewitt & Emerson, Paul S. Lietz, Oscar F. Dubuis and Frederic Klein. Prominent architectural styles found in Peoria Country are Late Victorian, Bungalow/Craftsman and Classical Revival.