Leavenworth is a medium-sized city located in the state of Kansas. With a population of 37,081 people and nine associated neighborhoods, Leavenworth is the 12th largest community in Kansas.

The armed forces are a huge part of the life in Leavenworth, employing 8.93% of the workforce. While it is a military town, the civilian sector still plays an important role in the local economy, where the Healthcare and Public Service industries employ 15.28% and 14.59% of the civilian workforce, respectively.

Also of interest is that Leavenworth has more people living here who work in computers and math than 95% of the places in the US.

The overall education level of Leavenworth citizens is substantially higher than the typical US community, as 33.77% of adults in Leavenworth have at least a bachelor's degree, and the average American community has 21.84%.

The per capita income in Leavenworth in 2022 was $32,849, which is middle income relative to Kansas and the nation. This equates to an annual income of $131,396 for a family of four. However, Leavenworth contains both very wealthy and poor people as well.

Leavenworth is a very ethnically-diverse city. The people who call Leavenworth home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Leavenworth residents report their race to be White, followed by Black or African-American. Important ancestries of people in Leavenworth include German, English, Irish, Italian, and Scottish.

The most common language spoken in Leavenworth is English. Other important languages spoken here include Spanish and Polish.