Pinal County was formed in 1875 from Pima and Yavapai Counties.
1880 Pinal County, Arizona Census
- Free 1880 Census Form for your Research
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- Hosted at Census Guide
1890 Pinal County, Arizona Census
- Free 1890 Census Form for your Research
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- Hosted at Census Guide
1900 Pinal County, Arizona Census
- Free 1900 Census Form for your Research
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- Hosted at Census Guide
1910 Pinal County, Arizona Census
- Free 1910 Census Form for your Research
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- Hosted at Census Guide
1920 Pinal County, Arizona Census
- Free 1920 Census Form for your Research
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- Hosted at Census Guide
1930 Pinal County, Arizona Census
- Free 1930 Census Form for your Research
- Hosted at Ancestry.com – 14 Days Free
- Hosted at Census Guide