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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Florissant, MO

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Area Code(s):314, 636
Timezone(s):Central (GMT -06:00)
City Population:52,158 (More Details)
CBSA:St. Louis, MO-IL
Congressional District(s):01
Land Area:508 square miles (county)
Water Area:15 square miles (county)

4 ZIP Codes

Florissant, MO ZIP Code Boundaries

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Florissant, MO Covers 4 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
63032P.O. Box00.00%
63033Standard43,00039.46%BLACK JACK

Florissant, MO Demographic Information *

Total population**52,158
Male population24,406
Female population27,752
Median age (years)38
White Population36,148
Black Population13,957
Indian Population117
Asian Population398
Hawaiian Population20
Hispanic Population1,029
Median age (Male)35.5
Median age (Female)39.9
Total households21,247
Family households (families)13,800
Average household size2.42
Average family size3
Total housing units22,632
* Demographic data is based on 2010 Census for the City of FLORISSANT.
** 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],