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Test your knowledge of US county populations with this quiz. Can you name the 100 largest counties by population and their respective states?

Do abbreviations or alternate spellings count?

Yes. Most quizzes allow common abbreviations, alternate spellings, and short forms. Try typing just the first few letters — if it matches, it will autofill.

North America

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US Largest Counties By Population

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Name the 100 largest US counties by population. Population and state shown.

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Geography King - 5.8K views

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athornton10

12 days ago

I got montgomery at 68, but montgomery, tx did not autopopulate. I tried montgomery again multiple times for tx but it never took

Ovamiat

5 years ago

>get a new personal best yet somehow manage to forget the county you live in

>MFW