Omadi Lodge #5, A.F. & A.M. is located at 124 East 19th Street in South Sioux City, NE.
The building also hosts Laura Chapter 301, Order of Eastern Star and Lynn Broyhill Assembly #12 of the International Order of Rainbow for Girls.
The lodge meets on the 2nd Tuesday of each month at 7:30 PM. Star meets on the 3rd Tuesday of the month at 7:30 PM. Rainbow meets on the 2nd and 4th Monday of each month at 7:00 PM.
Omadi Lodge No. 5 received a charter from the Grand Lodge of Nebraska on June 2, 1858. The original location was in the small town of Omadi that was located along the Missouri River between Dakota City and Homer. The town of Omadi was threatened by the then ever changing river and the Lodge relocated to Dakota City.
In June of 1968 Ponca Lodge No. 101 consolidated with Alpha Lodge No. 316 in South Sioux City. Then on March 1, 1990 Alpha Lodge No. 316 consolidated with Omadi Lodge No. 5. As a result the this consolidation Omadi Lodge No. 5 relocated to the formed Alpha Lodge No. 316 site and is still at that site today.