Leavenworth, Kansas

Leavenworth: City in Kansas


Leavenworth is a city located in the county of Leavenworth in the U.S. state of Kansas. Its population at the 2010 census was 35,251 and a population density of 566 people per km². After 10 years in 2020 city had an estimated population of 35,934 inhabitants.

The city was created 170 years ago in 1853.

Leavenworth is a city in Leavenworth County, Kansas, in the United States. As of the 2010 census, the city population was 35,251. It is located on the west bank of the Missouri River.


The city of Leavenworth was founded in 1854. It was the first city incorporated in the territory of Kansas. Leavenworth served as one of the starting points for the Oregon Trail and was a major supply point for emigrants heading west. Leavenworth was also an important location during the Bleeding Kansas era in the 1850s when pro-slavery and anti-slavery forces clashed over Kansas' status as a free or slave state. The Leavenworth Constitution, which would have admitted Kansas as a slave state, was drafted in Leavenworth in 1858.


Some of the notable attractions in Leavenworth include: - Fort Leavenworth, a United States Army installation and the oldest active U.S. Army post west of Washington, D.C. - The United States Disciplinary Barracks, the U.S. military's only maximum-security facility. - The Leavenworth Penitentiary Museum, which highlights the history of the former federal prison that operated in Leavenworth. - Heritage Park, a recreational area with hiking trails, sledding hills, and more. - Riverfront Community Center, which hosts festivals, farmer's markets, and other community events.

Leavenworth has a unique history and several notable attractions. Its location along the Missouri River and early role in westward expansion shaped its development. Today, Leavenworth continues to embrace its heritage while also looking to the future.

Leavenworth locator map
Location of Leavenworth on Kansas map.

Quick Facts about Leavenworth

Population : 35,934 (2020)
Country : United States of America
State : Kansas (United States)
County : Leavenworth County
Phone Area Codes : 913
Area : 62.32 km2
Altitude : 840 feet / 256 meters
Capital city : Leavenworth is capital of Leavenworth County
Establishment : January 01, 1854 (170 years ago)
Time Zone : Central Time Zone
Local time : 11:56:37 (1st March 2024)
Postal code : 66048
Density : 577 Pop. per km² as of 2020
Population growth : 1.9% (2010-2020)
Downtown Leavenworth  Kansas image
Downtown Leavenworth Kansas
Downtown Leavenworth  Kansas image


Leavenworth is located at 39°18'40"N 94°55'21"W (39.3111100, -94.9224600).

Leavenworth map

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The population of Leavenworth increased by 1.9% in 10 years.

Year Population % Change Method
2010 35,251 - census
2011 35,599 0.98% estimation process
2012 35,748 0.42% estimation process
2013 35,835 0.24% estimation process
2014 35,842 0.02% estimation process
2015 35,847 0.01% estimation process
2016 36,143 0.82% estimation process
2017 36,222 0.22% estimation process
2018 36,122 -0.28% estimation process
2019 35,957 -0.46% estimation process
2020 35,934 -0.06% estimation process

Leavenworth zip code is 66048. County name: Leavenworth, County fips: 20103

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People born in Leavenworth (49)

People born in Leavenworth, including singer-songwriter Melissa Etheridge, U.S. Representative from Colorado Doug Lamborn, anthropologist R. H. Barlow, .


Schools in Leavenworth

College & universities near Leavenworth, KS

Code Name City ZIP
155812 University of Saint Mary Leavenworth (KS) 66048-5082

Stations (6)

Amtrak & bus stations near Leavenworth, KS

Code Name Address Type
KCY Union Station 30 West Pershing Rd. RAIL
LRC Lawrence 413 East 7th Street RAIL
IDP Independence 600 South Grand Ave. RAIL
LEE Lee's Summit 217 SW Main St. RAIL
TOP Topeka 500 SE Holliday Place RAIL

Post offices near Leavenworth

Post Office Name City ZIP
Leavenworth Post Office Leavenworth (KS) 66048

Other places with the same name (4)

Other cities in Leavenworth County

Cities, towns, neighborhoods & other populated places in Leavenworth County , KS.

City Name Population Title
Lansing 11,954 City in Leavenworth County, Kansas
Basehor 6,656 City in Leavenworth County, Kansas, United States of America
Tonganoxie 5,690 City in Leavenworth County, Kansas
Kickapoo 1,937 Township in Leavenworth County, Kansas
Reno 1,526 City in United States of America
Springdale 712 City in United States of America
Fairmount 481 Township in Leavenworth County, Kansas
Linwood 433 City in Kansas
Easton 256 City in Kansas, United States

Distance to Other Cities

Leavenworth distances to largest Kansas cities