Caldwell

Source:

Missouri

Caldwell is a county in Missouri with 8 ZIP codes and a total population of 22,808. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.

Caldwell is a county inside Missouri (FIPS code 29025) that contains 8 USPS ZIP codes covering a combined population of 22,808 according to Census ACS 5-Year Estimates. Counties are the natural bridge between state-level summaries and ZIP-level detail — crime statistics, HUD Fair Market Rents, and childcare pricing are all published at the county level, while household income and housing values are published at the ZIP level. This page reconciles the two views so you can see which ZIPs drive the county totals.

The 8 ZIPs listed below are ordered by population and each links to the full ZIP detail page with Census demographics, housing, income, home-price history, and cross-agency inputs. The most populated ZIP in Caldwell is 64429 covering Cameron with 13,158 residents at 32 people per square mile. Population density across ZIPs in this county varies — use the density column to spot urban cores versus rural delivery areas. A single county can contain both a dense downtown ZIP and a large rural ZIP covering several hundred square miles.

Because Caldwell uses FIPS code 29025, it joins cleanly to county-level federal datasets: HUD Fair Market Rent tables, FBI Uniform Crime Report data, and the Department of Labor National Database of Childcare Prices all key off the same code. That is how neighborhood scorecards combine ZIP-level Census demographics with county-level safety and affordability metrics. All data on this page comes from U.S. Census Bureau ACS 2023 5-Year Estimates and USPS ZIP Code Tabulation Area files — no estimates, no proprietary sources, no editorial scoring.

8

Total ZIPs

22,808

Total Population

ZIP Codes in Caldwell

Side-by-side: Compare 64429 vs 64644 →

ZIP Code City Population Density
64429 Cameron 13,158 32
64644 Hamilton 3,024 11
64671 Polo 2,062 9
64624 Braymer 1,662 6
64649 Kidder 864 9
64650 Kingston 727 7
64637 Cowgill 667 3
64625 Breckenridge 644 4

What are common questions about ZIP codes in this county?

What is the population of Caldwell?
Caldwell has a total population of 22,808 across 8 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Caldwell?
Caldwell includes 8 ZIP codes: 64429, 64644, 64671, 64624, 64649, 64650, 64637, 64625.
What is the median household income in Caldwell?
Median household income data for individual ZIP codes in Caldwell is available on each ZIP code's detail page. Visit any ZIP code link below to see income, housing, and demographic data.

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →

Source: HUD USPS Crosswalk (ZIP-to-county mapping). Verify with HUD →

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.