| Number | County | Town | Size | Built | Verif | GPS | Description |
| MS-01-01 | Adams | Natchez | 1860 | 01-2007 | N31 32.24 W91 24.32 | S. of Natchez. US65 N. 0.9 miles from jct with US61 S. of Natchez, SW (left) on Lower Woodville Rd. 0.25 miles to the house at 140 on the W. (right) side of the road up a driveway 0.4 miles. Longwood, octagon house, brick, 3 story, very low pitch roof, 16 sided cupola w/onion shaped dome, unfinished inside, excellent condition. Construction halted when civil war started. | |
| MS-01-02 | Natchez | 01-2007 | N31 31.530 W91 23.407 | S. of Natchez. US61 S. 0.25 miles from jct with US65 on the S. side of Natchez to the bldg on the W. side of the road at 45. Concordia Bank & Trust, octagon bldg. | |||
| MS-01-03 | Natchez | 1940 | 01-2007 | N31 28.682 W91 22.283 | S. of Natchez, District 1 Township. US61 S. 4.1 miles from jct with US65 on the S. side of Natchez to the bldg on the E. side of the road at 555. Mammy's Cupboard, true round bldg. | ||
| MS-17-01 | Desoto | Southaven | 36' | 1998 | 07-2010 | N34 57.542 W89 58.800 | In Beaumont Estates in Southaven. MS302 (Goodman Rd.) E. 1.1 miles from jct with I55 exit 289, S. on Elmore Rd. 0.25 miles to the bldg on the E. side of the road in the middle of the circle of houses. Clubhouse, octagon bldg, brick. |
| MS-25-01 | Hinds | Jackson | 360' x 70' | 1962 | 01-2007 | N32 18.003 W90 10.328 | In the state fairgrounds in Jackson. High St. W. 0.3 miles from jct with I55 exit 96 in Jackson, S. on Monroe St. 0.2 miles into the fairgrounds & the bldg. Mississippi Coliseum, true round bldg, no cupola. |
| MS-25-02 | Jackson | 01-2007 | N32 19.88 W90 12.20 | In Jackson. Woodrow Wilson Blvd W. 1.2 miles from jct with US51 (State St.) in Jackson, NW on Medgar Evers Blvd 0.5 miles to the church on the W. side of the road. Hexagon church. | |||
| MS-25-03 | Clinton | 01-2007 | N32 20.110 W90 19.937 | At Mississippi College in Clinton. Madison St. N. 0.1 miles from jct with I20 exit 35 on the SW side of Clinton, SE on MS80 0.3 miles, N. on Coliseum Dr. 0.1 miles to the bldg on the E. side of the road. A.E. Wood Coliseum, true round bldg, geodesic roof. | |||
| MS-41-01 | Lee | Tupelo | 117' | 07-2010 | N34 15.016 W88 43.289 | In Tupelo. MS145 (Gloster St.) S. 0.5 miles from jct with US278 (Main St.), W. on Varsity Dr. 0.25 miles to the school ahead at 1009. Lee County Middle School, octagon school, brick. | |
| MS-53-01 | Oktibbeha | Starkville | At Mississippi State University in Starkville. MS182 W. 1.8 miles from jct with US82 on the NE side of Starkville, S. on Mississippi Blvd 0.1 miles, W. (curves S.) on Lakeview Dr. 0.4 miles to the bldg on the W. side of the road. Oval bldg. (N33 27.69 W88 47.73) | ||||
| MS-61-01 | Florence | 05-2010 | N32 08.814 W90 06.484 | SE of Florence, District 1 Township. US49 SE 1.1 miles from jct with MS469 just E. of Florence to the bldg on the NE side of the road at 3326. Jerry's Catfish Kettle, true round dome bldg. | |||
| MS-77-01 | Washington | Chatham | Round barn on road around Lake Washington. (N33 06.032 W91 05.864) | ||||
| MS-77-?1 | Glen Allan | In Paul Love Jr. Park SW of Glen Allan. Octagon bldg. (N33 00.648 W91 03.356) |