| Property | Address | City | Date Listed |
|---|---|---|---|
| Chambers Ford Bridge | 385th Street over Iowa River | Chelsea vicinity | 5/15/98 |
| Conant's Cabin and Park | IA 96, 3 mi. E. of Gladbrook | Gladbrook | 12/14/00 |
| Le Grand Bridge | Abbot Ave. over Iowa River | Le Grand vicinity | 5/15/98 |
| Brooks and Moore Bank Building | 423 2nd Street | Traer REMOVED | 5/22/98 |
| Hope Fire Company Engine House | 109 S. Broadway | Toledo | 01/27/1983 |
| Lincoln Highway Bridge | E. 5th Street | Tama | 03/30/1978 |
| Round Barn | Buckingham Township Off US 63 | Buckingham | 06/30/1986 |
| Star-Clipper-Canfield Building and Winding Stairway | 534 2nd Street | Traer | 10/29/1975 |
| Tama County Courthouse | State Street | Toledo | 07/02/1981 |
| Tama County Jail | Broadway and State Sts. | Toledo | 08/27/1981 |
| Wieting Theater | 101 S. Church Street | Toledo | 04/26/1979 |
| Young John W. Round Barn | Off US 63 | Traer | 06/30/1986 |