Leavenworth County, KS ZIP codes
There are 8 ZIP codes in Leavenworth County, KS, in 8 towns, from 66007 to 66086. The largest are 66048 (Leavenworth), 66086 (Tonganoxie) and 66007 (Basehor). 1 more crosses into it from a neighbouring county: 66054.
The county seat is Leavenworth.
- ZIP codes
- 8
- Partly in it
- 1 more
- Towns
- 8
- County seat
- Leavenworth
- County FIPS
20103- State
- Kansas
- Population
- 83,123
- Median household income
- $89,218
- Land area
- 463 sq mi
- Area code
- 913
- Metro area
- Kansas City
Leavenworth County ZIP codes by town
- Leavenworth (county seat)
- 66048
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in Leavenworth County
This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Leavenworth County.
- 66054 Mc Louth · mostly in Jefferson County
Map of Leavenworth County ZIP codes
The ZIP codes of Leavenworth County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Leavenworth County in numbers
About 83,123 people live in Leavenworth County, in 30,164 households, the 6th most populous of Kansas's 105 counties. The median household income is $89,218 a year, 20% above the Kansas median of $74,275 (US: $80,734). The median owner-occupied home is valued at $282,900 (30% above the Kansas median), and median gross rent is $1,219 a month. The median age is 38.0; 36.1% of adults 25 and over hold a bachelor's degree or higher (35.6% across Kansas); the average commute takes 24 minutes.
| Population | 83,123 |
|---|---|
| Households | 30,164 |
| Median age | 38.0 |
| Median household income | $89,218 |
| Median home value | $282,900 |
| Median gross rent | $1,219 |
| Bachelor's degree or higher | 36.1% |
| Mean commute | 23.9 min |
| Population density | 179 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Leavenworth County
| Town | ZIP codes | Population |
|---|---|---|
| Leavenworth | 1 | 37,195 |
| Lansing | 1 | 11,246 |
| Bonner Springs | 1 | 7,839 |
| Basehor | 1 | 7,491 |
| Fort Leavenworth | 1 | 7,365 |
| Tonganoxie | 1 | 5,891 |
| Linwood | 1 | 312 |
| Easton | 1 | 299 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Leavenworth County.
Not sure you are in Leavenworth County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Leavenworth County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
66007 | Basehor , KS | Standard | 10,150 | $121,266 | $381,200 |
66012 | Bonner Springs , KS | Standard | 10,425 | $97,873 | $276,500 |
66020 | Easton , KS | Standard | 1,809 | $78,594 | $320,100 |
66027 | Fort Leavenworth , KS | Standard | 7,365 | $102,208 | — |
66043 | Lansing , KS | Standard | 11,056 | $103,060 | $271,200 |
66048 | Leavenworth , KS | Standard | 35,717 | $72,734 | $219,100 |
66052 | Linwood , KS | Standard | 2,090 | $82,411 | $340,200 |
66086 | Tonganoxie , KS | Standard | 10,940 | $98,318 | $325,900 |
Cite this page
zipcodes.pro. “Leavenworth County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ks/county/leavenworth
Underlying data is public domain or openly licensed — sources, vintages and licences.