Iowa Road Signs




Outdoor advertising devices that display products or services available at locations other than at the sign site are commonly referred to as "billboards." They are also called "off-premise signs".

For in-depth information concerning billboards, view the Iowa Administrative Rules and Code of Iowa 306C.

Spacing requirements for billboards along Iowa interstates, primary freeways, and primary highways.

Billboards are not allowed to be erected along Scenic Byways. Check to see if the area you are inquiring about is on a Scenic Byway.

View a detailed Iowa map of zoned counties throughout Iowa.

Contact Us

If you have any questions regarding billboards, please contact Iowa DOT's agent Brent Christian at 515-239-1673.

Attention iconView a complete list of billboard frequently asked questions (and their answers).


Billboard examples

Examples of billboards
  • Example 1: A permit is required for any sign that advertises a product or activity that does not take place on the same property as the sign.
  • Example 2: Many Billboards are owned by advertising companies who lease space to individuals or businesses. Length of leases are determined on an individual basis. Cut-outs and extensions are sometimes used for greater effect.
  • Example 3: Billboards are also known as "off-premise" signs.