Jackson County Population 2018
Jackson County's estimated population is 13,318 with a growth rate of 0.44% in the past year according to the most recent United States census data. Jackson County is the 35th largest county in Kansas.
| Year | Population | Growth | Growth Rate |
| 2017 | 13,318 | 59 | 0.44% |
| 2016 | 13,259 | -25 | -0.19% |
| 2015 | 13,284 | -154 | -1.15% |
| 2014 | 13,438 | 129 | 0.97% |
| 2013 | 13,309 | -90 | -0.67% |
| 2012 | 13,399 | -25 | -0.19% |
| 2011 | 13,424 | -40 | -0.30% |
| 2010 | 13,464 | 1,939 | 16.82% |
| 1990 | 11,525 | -119 | -1.02% |
| 1980 | 11,644 | 1,302 | 12.59% |
| 1970 | 10,342 | 33 | 0.32% |
| 1960 | 10,309 | -789 | -7.11% |
| 1950 | 11,098 | -2,284 | -17.07% |
| 1940 | 13,382 | -1,394 | -9.43% |
| 1930 | 14,776 | -719 | -4.64% |
| 1920 | 15,495 | -1,366 | -8.10% |
| 1910 | 16,861 | -256 | -1.50% |
| 1900 | 17,117 | 2,029 | 13.45% |
| 1890 | 15,088 | 4,370 | 40.77% |
| 1880 | 10,718 | 4,665 | 77.07% |
| 1870 | 6,053 | 4,117 | 212.65% |
| 1860 | 1,936 | 0.00% |