Skip to main content
County ProfileMO

Caldwell County

Population: 8,815 · 7 ZIP codes

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
8,815
People
Median age
43.2
Housing
Total households
3,769
Income
Median household income
$64,806
Housing
Total housing units
4,275
Employment
Employment rate
57.3%
Education
Bachelor’s degree or higher
19.9%
Healthcare
Insured population
90.4%
County details
Local time 00:52:30(CT)
NameCaldwell
Total ZIP codes7total
ZIP codes (by type)
7 Standard
Area code660, 816
TimezoneCentral Time (CT)
Coordinates39.6589977, -93.9791785
Land area426.4 sq miles(1,104.4 km²)

Map of Caldwell county, Missouri with ZIP codes

Map of Caldwell County, Missouri and ZIP codes

Cities and Communities in Caldwell County

Compare the largest cities in Caldwell County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Hamilton1,690$65,2131ZIPs
Braymer737$49,2501ZIPs
Polo509$53,5231ZIPs
Kingston290$45,6251ZIPs
Kidder267$62,5001ZIPs
Breckenridge258$32,1991ZIPs
Cowgill168$44,5001ZIPs

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Caldwell County

Review the most populated postal areas across Caldwell County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)
64644Hamilton$74,4082,977
64671Polo$75,4552,085
64624Braymer$58,0951,519
64649Kidder$67,216830
64650Kingston$45,441628
64625Breckenridge$35,000583
64637Cowgill$56,944579

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS