Visit Us.

A large white, three-story historic house with a wrap-around porch, multiple windows, and a small dormer window on the roof, surrounded by green grass and flower beds, under a partly cloudy sky.

Museum Appointments

The 1902 Simpson House is open during certain Johnston Library, Simpson Barn, and Johnston Commons Park events shown below or by appointment. For appointments call us at (515) 331-0687

Gray barn with four quilt square decorations on the upper wall, set in a brick patio area with picnic tables, and a metal windmill in the background under a partly cloudy sky.

Simpson Barn Reservation

The barn can be rented for your special event. For information and reserve online, visit

Simpson Barn Reservation

or call the Johnston Parks Department at (515) 727-8091

Simpson House Experiences

Kites on the Green

Visit the Simpson House museum during the 13th annual Kites on the Green festival at Johnston Commons

May 2, 2026

10:00 - 2:00 pm

Sundae In the Park

Visit the Simpson House museum during the Johnston Schools Sundae in the Park at Johnston Commons

August 9, 2026

5:00 - 7:00 pm

Christmas

@ The Simpson House

Join the Johnston Historical Society for some holiday cheer at the Simpson House museum

December 13, 2026

2:00 - 4:00 pm