| Capital: | Madison |
|---|---|
| Origen y Formación del condado: | Formed from Clark, Dearborn and Knox County |
| Población: | 31,705 habitantes |
| Área: | 361 sq mi |
| Localización del condado dentro de Indiana: |
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Localidades en Jefferson, Indiana
- Brooksburg
- Canaan
- Deputy
- Dupont
- Graham Township Jefferson County
- Hanover
- Lancaster Township Jefferson County
- Madison
- Monroe Township Jefferson County
- Republican Township Jefferson County
- Saluda Township Jefferson County
- Shelby Township Jefferson County
- Smyrna Township Jefferson County