Jennings is a city located in Decatur County, Kansas. Jennings has a 2026 population of 79. Jennings is currently declining at a rate of -1.25% annually and its population has decreased by -2.47% since the most recent census, which recorded a population of 81 in 2020.
The median household income in Jennings is $51,250 with a poverty rate of 14.41%. The median age in Jennings is 38.2 years: 40.8 years for males, and 29.9 years for females. For every 100 females there are 114.5 males.