| Building |
Address |
| Alsop, Carroll, House | 1907 A Avenue East |
| Eveland Bridge | Fulton Ave. over Des Moines R. |
| Forest Cemetery Entrance | Jct. of N. 9th St. and J Ave. E. |
| Gibbs, E. H., House | William Penn College Campus, N. Market Extension |
| Hoffman, Phil, House | 807 High Ave. E. |
| Iowa Yearly Meeting House--College Avenue Friends Church | 912 N. C St. |
| Lake Keomah State Park, Bathhouse--Lodge Area (Area A) | Off IA 371 S of jct. with IA 92 |
| Lake Keomah State Park, Erosion Control Area (Area B) | Off IA 371 S of jct. with IA 92 |
| Lamberson, Jack, House | 511 N. Park Ave. |
| Lincoln School, Oskaloosa, Iowa | 911 B Ave. W. |
| Mahaska County Courthouse | Market St. and 2nd Ave. |
| McMullin, Maj. James W., House | 403 1st Ave., E. |
| McNeill, W.A., House | 1282 C Ave. East |
| Nelson, Daniel, House and Barn | SR 1 |
| Oskaloosa City Hall | Jct. of S. Market St. and 2nd Ave. E., NE corner |
| Oskaloosa City Park and Band Stand | City Park |
| Oskaloosa City Square Commercial Historic District | Roughly bounded by A Ave. E, N. and S. Second St., Second Ave. E, and N. and S. A St. |
| Oskaloosa Fire Station | 109--111 2nd Ave. E. |
| Oskaloosa Monthly Meeting of Friends Parsonage | 910 N. C St. |
| Paradise Block Historic District | 402, 406, 408, 410, 414, 418 and 510--714 High Ave. E. |
| Penn College Historic District | 201 Trueblood Ave. |
| President's Cottage | 425 College Ave. |
| Rock Island Passenger Depot | Rock Island Ave. between 1st and 2nd Sts. |
| Seeberger-Loring-Kilburn House | 509 High Ave., E. |
| Shoemake, John H., House | 116 2nd Ave., W. |
| Smith-Johnson House | 713 High Ave., E. |
| Spring Creek Friends Cemetery | Jct. of Osburn Ave. and 235th St. |
| St. James Episcopal Church, Oskaloosa, Iowa | Jct. of 1st Ave. and S. 3rd St., SW corner |
| Stock Judging Pavilion, Oskaloosa, Iowa | Southern Iowa Fairgrounds |
| Stranahan, Prof. Edgar H. and Irene D., House | 1001 Gurney St. |
| Buildings of Local Significance |
Address |
| Forest Cemetery Entrance | Jct. of N. 9th St. and J Ave. E. |
| Gibbs, E. H., House | William Penn College Campus, N. Market Extension |
| Hoffman, Phil, House | 807 High Ave. E. |
| Iowa Yearly Meeting House--College Avenue Friends Church | 912 N. C St. |
| Lake Keomah State Park, Bathhouse--Lodge Area (Area A) | Off IA 371 S of jct. with IA 92 |
| Lake Keomah State Park, Erosion Control Area (Area B) | Off IA 371 S of jct. with IA 92 |
| Lincoln School, Oskaloosa, Iowa | 911 B Ave. W. |
| Mahaska County Courthouse | Market St. and 2nd Ave. |
| McMullin, Maj. James W., House | 403 1st Ave., E. |
| McNeill, W.A., House | 1282 C Ave. East |
| Nelson, Daniel, House and Barn | SR 1 |
| Oskaloosa City Hall | Jct. of S. Market St. and 2nd Ave. E., NE corner |
| Oskaloosa City Park and Band Stand | City Park |
| Oskaloosa City Square Commercial Historic District | Roughly bounded by A Ave. E, N. and S. Second St., Second Ave. E, and N. and S. A St. |
| Oskaloosa Fire Station | 109--111 2nd Ave. E. |
| Oskaloosa Monthly Meeting of Friends Parsonage | 910 N. C St. |
| Paradise Block Historic District | 402, 406, 408, 410, 414, 418 and 510--714 High Ave. E. |
| President's Cottage | 425 College Ave. |
| Rock Island Passenger Depot | Rock Island Ave. between 1st and 2nd Sts. |
| Seeberger-Loring-Kilburn House | 509 High Ave., E. |
| Shoemake, John H., House | 116 2nd Ave., W. |
| Smith-Johnson House | 713 High Ave., E. |
| Spring Creek Friends Cemetery | Jct. of Osburn Ave. and 235th St. |
| St. James Episcopal Church, Oskaloosa, Iowa | Jct. of 1st Ave. and S. 3rd St., SW corner |
| Stock Judging Pavilion, Oskaloosa, Iowa | Southern Iowa Fairgrounds |
| Stranahan, Prof. Edgar H. and Irene D., House | 1001 Gurney St. |
