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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Montclair, CA

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Area Code(s):909, 840, 951
Timezone(s):Pacific (GMT -08:00)
City Population:36,664 (More Details)
CBSA:Riverside-San Bernardino-Ontario, CA
Congressional District(s):35
Land Area:20,057 square miles (county)
Water Area:48 square miles (county)

3 ZIP Codes

Montclair, CA ZIP Code Boundaries

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Montclair, CA Covers 3 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
91710Standard80,35846.56%MONTCLAIR, ONTARIO

Montclair, CA Demographic Information *

Total population**36,664
Male population18,246
Female population18,418
Median age (years)30.7
White Population19,337
Black Population1,908
Indian Population434
Asian Population3,425
Hawaiian Population74
Hispanic Population25,744
Median age (Male)29.3
Median age (Female)32.3
Total households9,523
Family households (families)7,776
Average household size3.81
Average family size4.09
Total housing units9,911
* Demographic data is based on 2010 Census for the City of MONTCLAIR.
** 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],