The Iowa State Capitol at 1007 E Grand Ave in Des Moines is one of the most architecturally distinguished state capitol buildings in the United States, completed in 1886 after 14 years of construction at a cost of $3.3 million. The building's most dramatic exterior feature is its gilded central dome, covered in 23-karat gold leaf, which rises 275 feet above the ground and can be seen from most of downtown Des Moines. Four smaller flanking domes complement the central dome in a composition unique among American state capitols. The interior is equally impressive, with grand staircases of Iowa stone, 29 varieties of marble sourced from across the United States and Europe, intricate mosaic tile floors, and a magnificent stained-glass skylight beneath the central rotunda. The Law Library — a circular, three-story space lined with more than 100,000 volumes behind ornate ironwork balconies — is among the most beautiful working legal libraries in the country. Free guided tours depart from the ground floor information desk on weekdays and cover the main chambers, governor's suite, rotunda, and law library with interpretation from volunteer docents. Self-guided tours are possible using printed materials available at the desk. The Capitol grounds feature statuary including the Iowa Soldiers and Sailors Monument and a replica of the Statue of Liberty. Exterior photography from the Grand Ave approach, looking up at the gilded dome against the sky, is the classic vantage point for visitors.
Good to know
- Hours
- Monday-Friday 8:00 AM - 5:00 PM; Saturday 8:00 AM - 4:00 PM; Free guided tours available
- Best time
- Weekday mornings when free guided tours operate
Location
1007 E Grand Ave, Des Moines, IA 50319
41.5918, -93.6039 View on map
Highlights
- Gilded central dome covered in 23-karat gold leaf, rising 275 feet and visible across downtown Des Moines
- Law Library — a three-story circular hall with over 100,000 volumes behind ornate ironwork balconies
- Interior featuring 29 varieties of domestic and European marble, mosaic floors, and stained-glass rotunda
- Free guided tours covering the main legislative chambers, governor's suite, and rotunda artwork
- Four flanking domes in a composition unique among all American state capitol buildings
Tips for visiting
- Free guided tours depart weekdays from the ground-floor information desk — check the daily schedule on arrival
- Arrive before 9:30 AM to join the first morning tour before school group bookings fill later slots
- The Law Library is accessible only on guided tours and is the most visually striking interior space
- Exterior photography is best from the E Grand Ave approach looking northwest toward the gold dome
- Paid parking is available in the garage at East 9th and E Grand Ave; on-street meters surround the building
- The Capitol is closed Sundays; Saturday hours end at 4:00 PM with no guided tours on weekends
When to visit
Weekday mornings between 9:00 AM and noon are best for joining a free guided tour and avoiding school group congestion. The building is quietest on early weekday mornings. The gold dome is most photogenic in late afternoon light from the Grand Ave approach.
Accessibility
The Capitol has accessible entrances on the east and west sides with ramp access and elevator service to all floors open to the public. Accessible restrooms are available on the ground floor. Guided tour routes navigate primarily by elevator and accessible corridors.
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Frequently asked questions
How long does a visit to the Iowa State Capitol take?
A free guided tour lasts approximately 45-60 minutes and covers the main highlights. Self-guided visitors typically spend 1-1.5 hours exploring the public spaces, rotunda, and exterior grounds.
Is the Iowa State Capitol free to visit?
Yes, admission is entirely free, including guided tours. The building is a public government facility open to all visitors during stated hours at no charge.
Is photography allowed inside the Iowa State Capitol?
Yes, personal photography is freely permitted throughout public areas of the Capitol, including the rotunda, Law Library (on guided tours), and legislative chambers when not in session.