Ranking of Kansas Counties By Total Voting-age Population (18yrs and over) from Census 2020
Updated on August 22, 2023.
According to the data from the US 2020 Census, as at April 2020, among all the counties in Kansas, Johnson County had the highest voting-age population (18 years and over) (462.00K), followed by Sedgwick County (392.88K), and Shawnee County (137.14K).
The chart below shows the top 10 counties with high voting-age population, and the table below shows the ranking of all Kansas counties based on voting-age population.
You can also see the ranking of counties by population for other states as well as for the whole United States.
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Related Topics: Kansas Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Kansas Counties By Total Voting-age Population from Census 2020
Rank | County | Voting-age Population |
|---|---|---|
| 1 | Johnson County | 461,998 |
| 2 | Sedgwick County | 392,877 |
| 3 | Shawnee County | 137,135 |
| 4 | Wyandotte County | 123,572 |
| 5 | Douglas County | 96,316 |
| 6 | Leavenworth County | 62,172 |
| 7 | Riley County | 59,685 |
| 8 | Butler County | 50,070 |
| 9 | Reno County | 48,143 |
| 10 | Saline County | 41,737 |
| 11 | Crawford County | 30,158 |
| 12 | Finney County | 27,176 |
| 13 | Cowley County | 26,392 |
| 14 | Geary County | 25,963 |
| 15 | Harvey County | 25,911 |
| 16 | Miami County | 25,740 |
| 17 | Lyon County | 25,093 |
| 18 | Montgomery County | 24,064 |
| 19 | Ford County | 23,674 |
| 20 | McPherson County | 23,584 |
| 21 | Ellis County | 22,952 |
| 22 | Franklin County | 19,927 |
| 23 | Barton County | 19,337 |
| 24 | Pottawatomie County | 17,895 |
| 25 | Sumner County | 16,920 |
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