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Population Review

What is the largest county in Kansas?

Johnson County is the largest county in Kansas with a population of 614,764, according to Census ACS 5-Year.

Context

Kansas has 105 counties.

Top 10

Johnson County614,764
Sedgwick County524,810
Shawnee County178,315
Wyandotte County167,277
Douglas County119,547

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Kansas full demographic profileCities in KansasAll US states

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Frequently Asked Questions

Johnson County is the largest county in Kansas with a population of 614,764, according to Census ACS 5-Year.