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Washington County is a county located in the northwest part of the U.S. state of Arkansas.As of the 2010 census, the population was 203,065, making it the third-most populous county in Arkansas.


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Arkansas County is a county located in the U.S. state of Arkansas.As of the 2010 census, the population was 19,019. Located in the Arkansas Delta, the county has two county seats, De Witt and Stuttgart.