71 ZIP codes use the postal name Kansas City, Missouri (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 50 residential and 21 for PO boxes or a single organization. Median household income runs from $33,111 in 64127 to $179,964 in 64113, 5.4 times as much (Census Bureau, ACS 2020-2024). Kansas City's most populous ZIP code is 64118, with 41,984 people (ACS 2020-2024); 55% of its land is in the city of Kansas City.
ACS2020-24
Census2020
GeoNames2026
Where are Kansas City's ZIP codes?
The 50 residential ZIP codes named Kansas City, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it.<$54.1k$98.1k+no figure
Source:U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).
PO Box and single-organization ZIP codes in Kansas City
21 ZIP codes named Kansas City have no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.
Kansas City, MO: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIP
County
64121
Jackson County
64141
Jackson County
64144
Clay County
64148
Jackson County
64162
Clay County
64168
Platte County
64170
Jackson County
64171
Jackson County
64179
Jackson County
64180
Jackson County
64184
Jackson County
64187
Jackson County
64188
Jackson County
64190
Platte County
64191
Jackson County
64195
Platte County
64196
Jackson County
64197
Jackson County
64198
Jackson County
64199
Jackson County
64999
Jackson County
Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.
Which counties do Kansas City's ZIP codes reach?
Kansas City's residential ZIP codes lie in 4 counties: Jackson County (32 ZIP codes mainly there), Clay County (12 ZIP codes mainly there), Platte County (6 ZIP codes mainly there), Cass County (part of a ZIP code).
Which places do Kansas City's ZIP codes cover?
A postal name is not a city limit. By the Census Bureau's places, Kansas City's residential ZIP codes cover Kansas City itself and 20 other places, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:
Source:U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).
Which first three digits do Kansas City's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Kansas City's ZIP codes use 2 prefixes: 641 and 649.
Three-digit prefixes of Kansas City's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Kansas City's
Prefix
Sectional center
Here
All codes
641
Kansas City, MO (SCF 640)
70
71
649
Kansas City, MO (SCF 640)
1
1
70 of the 71 ZIP codes that start with 641 are Kansas City's, all sorted at Kansas City, MO (SCF 640). The other one is 64150 (Riverside).
All 1 ZIP code that start with 649 are Kansas City's: 0 residential codes and 1 PO Box or unique code, sorted at Kansas City, MO (SCF 640).
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.