I am looking for a map of counties in Iowa that I can manipulate.

[Suzanne S. Barnhill]

Some likely candidates at
http://images.google.com/images?q=Iowa+counties+map&hl=en&btnG=Search+Images.
Whether you can edit the images will depend on what type of graphics
software you have.

 

[Mary Sauer]

One here
http://msauer.mvps.org/graphics.htm