Macksburg is a city in Madison County, Iowa, United States.

[3] According to the United States Census Bureau, the city has a total area of 1.99 square miles (5.15 km2), all of it land.

It was named for Dr. Joseph Hughes Mack, one of the original owners of the town site.

There were 54 housing units at an average density of 27.2 per square mile (10.5/km2).

There were 59 housing units at an average density of 29.6 per square mile (11.4/km2).

The racial makup of the city was 96.5% White, 1.8% Native American, and 1.8% from two or more races.

There were 66 housing units at an average density of 33.4 per square mile (12.9/km2).

The racial makup of the city was 97.18% White, 1.41% Asian, and 1.41% from two or more races.

There were none of the families and 5.6% of the population living below the poverty line, including no under eighteens and 6.5% of those over 64.