| Property | Address | City | Date Listed |
|---|---|---|---|
| Red Bridge | Co.Rd. S74 over South Skunk River | Monroe vicinity | 5/15/98 |
| Arthur Thomas House | 322 N. 8th Ave. E. | Newton | 10/07/1982 |
| Bergman August H. House | 629 First Ave. E. | Newton | 07/13/1989 |
| Byal Orchard Historic District | W. 108th Street about 1.5 mi. S of jct. with IA 223 | Mingo | 10/28/1994 |
| Emerson Hough Elementary School | 700 N. 4th Avenue E | Newton | October 24, 2002 |
| Fred Maytag Park Historic District | 301 S. 22th Ave W | Newton | 11/10/10 |
| German Evangelical Reformed Church | N of Newton | Newton | 03/07/1979 |
| Hall James Norman House | 416 E. Howard Street | Colfax | 07/12/1984 |
| Jasper County Courthouse | 1st Ave. between W. 1st Street & W. 2nd Sts. | Newton | 07/02/1981 |
| Long J. G. and Regina House | Co. Rd. F70 .5 mi. W of Monroe city limits | Monroe | 04/14/1997 |
| Lynnville Mill and Dam | East Street | Lynnville | 11/25/1977 |
| St. Stephen's Episcopal Church | 223 E. 4th Street N. | Newton | 09/22/1977 |