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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Smithville, MO

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Counties:CLAY, MO
Area Code(s):816
Timezone(s):Central (GMT -06:00)
City Population:8,425 (More Details)
CBSA:Kansas City, MO-KS
Congressional District(s):06
Land Area:398 square miles (county)
Water Area:11 square miles (county)

1 ZIP Code

Smithville, MO ZIP Code Boundaries

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Smithville, MO Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Smithville, MO Demographic Information *

Total population**8,425
Male population4,130
Female population4,295
Median age (years)36.9
White Population8,084
Black Population57
Indian Population41
Asian Population56
Hawaiian Population3
Hispanic Population220
Median age (Male)35.9
Median age (Female)37.8
Total households3,115
Family households (families)2,321
Average household size2.68
Average family size3.13
Total housing units3,280
* Demographic data is based on 2010 Census for the City of SMITHVILLE.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],