Former Counties
The following counties no longer exist:
- Bancroft (1851–1855), merged with Kossuth County
- Cook (1836–1837), merged with Muscatine County
- Crocker (1870–1871), merged with Kossuth County
- Risley (1851–1853), formed Webster County
- Yell (1851–1853), formed Webster County
Read more about this topic: List Of Counties In Iowa