| Capital: | Elkader |
|---|---|
| Origen y Formación del condado: | Dubuque County and Wisconsin Territory |
| Población: | 18,129 habitantes |
| Área: | 779 sq mi |
| Localización del condado dentro de Iowa: |
|
Localidades en Clayton, Iowa
- Boardman Township Clayton County
- Clayton
- Cox Creek Township Clayton County
- Edgewood
- Elkader
- Elkport
- Elk Township Clayton County
- Farmersburg
- Garber
- Garnavillo
- Grand Meadow Township Clayton County
- Guttenberg
- Littleport
- Lodomillo Township Clayton County
- Luana
- Mallory Township Clayton County
- Marquette
- Mcgregor
- Mendon Township Clayton County
- Millville
- North Buena Vista
- Osterdock
- Postville
- Read Township Clayton County
- Saint Olaf
- Strawberry Point
- Volga
- Wagner Township Clayton County