Columbia County
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A county of Arkansas, United States. County seat: Magnolia.
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A county of Florida, United States. County seat: Lake City.
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A county of Georgia, United States. County seat: Appling.
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A county of New York, United States. County seat: Hudson.
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A county of Pennsylvania, United States. County seat: Bloomsburg.
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A county of Wisconsin, United States. County seat: Portage.
Columbia County
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A county of Oregon, United States. County seat: St. Helens.
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A county of Washington, United States. County seat: Dayton.