ZIP Codes of Cass County, MO

Population & People
Population & People
Total Population
104,539
Household Income
Household Income
Median Income
$82,857
Housing
Housing
Total Housing Units
43,325
Business & Economy
Business & Economy
Total Businesses
2,054
Employment
Employment
Employment Rate
64.32%
Education
Education
Bachelor's Degree+
28.12%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 11 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:11 ZIP Codes (9 Standard, 2 PO Box, 0 Unique) [See All]
Area Codes:816 / 975
Timezone:Central (GMT -06:00)
Local Time:11:53:59 PM
Population:104,539 [See All]
FIPS:29037
CBSA:Kansas City, MO-KS
Land Area:629 sq mi
Water Area:5 sq mi
Coordinates:38.6755, -94.3748
Quick Link:
https://www.zip-codes.com/county/mo-cass.asp
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Missouri's #12 most populous county
104,539 residents across 11 ZIPs — #12 of 116 Missouri counties.

Standout ZIPs in this County


Most Populous
Belton · 29,304 people
28.0% of county total
Highest Income
Pleasant Hill · $104,311 median
1.3× county average
Largest Land Area
Harrisonville · 127.6 sq mi
Spans the most ground
Fastest Growth
Cleveland · 39.8% (10-yr)
1,658 → 2,318 residents
Most Educated
Raymore · 35.9% bachelor's+
6,384 of 17,800 adults 25+

Things worth knowing about Cass County


104,539 residents live across 11 ZIPs covering 629 sq mi, served by 11 distinct USPS-recognized cities.

Population moved from 94,747 to 104,539 from 2014 to 2024 — a +10.3% change. 8 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 64080 (Pleasant Hill, $104,311 median) and poorest ZIP 64012 (Belton, $71,814) are 14.9 miles apart — a 1.5× income gap across local geography.

Median home values vary 1.8× across this county — from $221,200 in 64012 (Belton) to $393,900 in 64734 (Cleveland).

Density varies 29× across the county — from 35 people/sq mi in 64747 (Garden City) to 1,017 in 64083 (Raymore).

Educational attainment ranges from 14.8% bachelor's+ in 64747 (Garden City) to 35.9% in 64083 (Raymore) — the breadth of educational profiles across the area.

Within Missouri, this is the #12 most populous of 116 counties and ranks #9 for median household income with the #11 fastest decade growth .

Weighted by population, the typical household earns about $88,776 across the county — reflecting what a typical resident sees, not a simple ZIP average.

28.1% of adults age 25+ hold a bachelor's degree or higher (20,237 of 71,967 reporting).

9 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.

All ZIP Codes in Cass County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
64012BeltonStandard29,304$71,81446.87.5%
64083RaymoreStandard26,201$101,66725.823.0%
64701HarrisonvilleStandard14,731$78,648127.63.3%
64080Pleasant HillStandard14,007$104,311126.111.7%
64078PeculiarStandard9,853$103,92254.41.0%
64747Garden CityStandard4,201$82,642119.810.3%
64734ClevelandStandard2,318$88,27441.039.8%
64725ArchieStandard2,130$84,72257.6-5.0%
64746FreemanStandard1,502$79,68228.5-4.0%
64743East LynnePO Box162$53,8751.4-39.3%
64090StrasburgPO Box130$61,8750.273.3%

Adjacent & Nearby Counties