| ZIP Codes: | 23 ZIP Codes (17 Standard, 4 PO Box, 2 Unique) [See All] |
| Area Codes: | 816 / 975 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:41 PM |
| Population: | 265,074 [See All] |
| FIPS: | 29047 |
| CBSA: | Kansas City, MO-KS |
| Land Area: | 441 sq mi |
| Water Area: | 10 sq mi |
| Coordinates: | 39.2627, -94.4694 |
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265,074 residents live across 23 ZIPs covering 441 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 233,839 to 265,074 from 2014 to 2024 — a +13.4% change. 13 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 64157 (Kansas City, $149,526 median) and poorest ZIP 64117 (Kansas City, $59,601) are 8.4 miles apart — a 2.5× income gap across local geography.
Median home values vary 2.2× across this county — from $186,900 in 64117 (Kansas City) to $410,800 in 64156 (Kansas City).
Density varies 33× across the county — from 101 people/sq mi in 64048 (Holt) to 3,298 in 64158 (Kansas City).
Most of the decade's growth concentrated around Kansas City — top growth ZIPs averaged +34.8% over the past ten years ( 64158 , 64156 and 64157 ).
Educational attainment ranges from 16.4% bachelor's+ in 64024 (Excelsior Springs) to 52.4% in 64157 (Kansas City) — the breadth of educational profiles across the area.
Within Missouri, this is the #6 most populous of 116 counties and ranks #2 for median household income with the #5 fastest decade growth .
Hosts 2 single-entity Unique ZIPs: 64144Philatelic Distribution Ctr ; and 64162Usps Stamp Distribution Ctr .
Weighted by population, the typical household earns about $92,896 across the county — reflecting what a typical resident sees, not a simple ZIP average.
36.1% of adults age 25+ hold a bachelor's degree or higher (65,795 of 182,133 reporting). The most-educated ZIPs cluster around Kansas City.
17 Standard delivery, 4 PO Box only, 2 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 64118 | Kansas City | Standard | 41,984 | $74,740 | 12.8 | 2.8% |
| 64068 | Liberty | Standard | 37,758 | $92,297 | 85.8 | 2.0% |
| 64119 | Kansas City | Standard | 33,199 | $83,929 | 14.6 | 21.1% |
| 64155 | Kansas City | Standard | 28,824 | $97,471 | 15.4 | 26.9% |
| 64157 | Kansas City | Standard | 23,030 | $149,526 | 11.1 | 29.0% |
| 64116 | Kansas City | Standard | 18,046 | $64,123 | 11.7 | 21.0% |
| 64060 | Kearney | Standard | 16,488 | $112,683 | 60.4 | 22.0% |
| 64024 | Excelsior Springs | Standard | 15,574 | $77,895 | 70.5 | -9.6% |
| 64117 | Kansas City | Standard | 14,919 | $59,601 | 6.5 | 5.4% |
| 64089 | Smithville | Standard | 14,380 | $101,009 | 68.6 | 24.7% |
| 64156 | Kansas City | Standard | 7,946 | $130,224 | 11.5 | 33.7% |
| 64158 | Kansas City | Standard | 7,317 | $105,043 | 2.2 | 41.6% |
| 64048 | Holt | Standard | 4,387 | $103,131 | 43.4 | 1.6% |
| 64161 | Kansas City | Standard | 292 | $53,333 | 16.1 | -10.4% |
| 64166 | Kansas City | Standard | 270 | $163,214 | 3.4 | -15.9% |
| 64167 | Kansas City | Standard | 243 | $202,917 | 1.6 | -9.7% |
| 64165 | Kansas City | Standard | 212 | — | 4.8 | 155.4% |
| 64072 | Missouri City | PO Box | 205 | $37,917 | 0.7 | -11.6% |
| 64073 | Mosby | PO Box | — | — | 0.0 | — |
| 64144 | Kansas City | Unique | — | — | 0.0 | — |
| 64162 | Kansas City | Unique | — | — | 0.0 | — |
| 64188 | Kansas City | PO Box | — | — | 0.0 | — |
| 64069 | Liberty | PO Box | — | — | 0.0 | — |