| Capital: | Port Clinton |
|---|---|
| Origen y Formación del condado: | Erie, Sandusky, and Lucas Counties |
| Población: | 41,428 habitantes |
| Área: | 254 sq mi |
| Localización del condado dentro de Ohio: |
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Localidades en Ottawa, Ohio
- Allen Township Ottawa County
- Bay Township Ottawa County
- Benton Township Ottawa County
- Carroll Township Ottawa County
- Catawba Island Township Ottawa County
- Clay Center
- Clay Township Ottawa County
- Curtice
- Danbury Township Ottawa County
- Elmore
- Erie Township Ottawa County
- Genoa
- Graytown
- Gypsum
- Harris Township Ottawa County
- Isle Saint George
- Lacarne
- Lakeside
- Lakeside Marblehead
- Marblehead
- Martin
- Middle Bass
- Oak Harbor
- Portage Township Ottawa County
- Port Clinton
- Put In Bay
- Put In Bay Township Ottawa County
- Rocky Ridge
- Salem Township Ottawa County
- Williston