Iowa - Architectural style - Prairie School architecture
| Andrus, A. J., Duplex |
| Boehmler, H. E., House |
| Carnegie Library Building |
| C B & Q Passenger Depot |
| Chase, Charles F. and and Ruth, House |
| City National Bank Building |
| Clarke, James F., House |
| Cresco Opera House |
| Davison, Abner, House |
| Dodd, A. B. C., House |
| Everist, H. H., House |
| Franke, C. F., House |
| Fryer, O.F. and Lulu E., House |
| Gibson, E. R., House |
| Grant Vocational High School |
| Hager, Otto J., House |
| Hurst, A. A., House |
| Illinois Central Passenger Depot-Storm Lake |
| Jewell Apartments |
| Lincoln Elementary School |
| Lippert House |
| Mahnke House |
| Martin, T.S., and Company |
| Martzahn, August F., House |
| Mount Sinai Temple |
| Neessen, Chris, House |
| New Lawn, The |
| Norris, F. M., House |
| Onawa Public Library |
| Oskaloosa Monthly Meeting of Friends Parsonage |
| Park Inn Hotel |
| Ricker, B. J., House |
| Roberts, Edward C., House |
| Romey, George, House |
| Rye, Chris, House |
| Schulein, Ben and Harriet, House |
| Seney, Charles, House |
| Shipley, C. P., House |
| Sioux City Baptist Church |
| Sioux City Public Library (Smith Villa Branch) |
| Smouse, Winfield, House |
| Stockman, Dr. G. C., House |
| Summit Apartment Building |
| Williges Building |
| Wolf, Mier, House |
| Woodbine Public Library |
| Woodbury County Courthouse |
| Yelland, Curtis, House |
| Youngblood, Tessa, House |
Data from United States Park Service and Wikidata