| Capital: | Spencer |
|---|---|
| Origen y Formación del condado: | Native American lands |
| Población: | 16,667 habitantes |
| Área: | 569 sq mi |
| Localización del condado dentro de Iowa: |
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Localidades en Clay, Iowa
- Dickens
- Douglas Township Clay County
- Everly
- Fostoria
- Freeman Township Clay County
- Garfield Township Clay County
- Gillett Grove
- Greenville
- Herdland Township Clay County
- Lake Township Clay County
- Meadow Township Clay County
- Peterson
- Rossie
- Royal
- Sioux Township Clay County
- Spencer
- Summit Township Clay County
- Waterford Township Clay County
- Webb