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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Montrose, CA

Montrose, CA Covers 2 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 91020StandardLos Angeles8,415818 / 747
ZIP Code 91021P.O. BoxLos Angeles0818 / 747

Timezone(s):Pacific (GMT -08:00)
Population:8,415 (More Details)
Male Population:3,966
Female Population:4,449
Median Age:40
ZIP Codes:2
Area Codes:2
Total Area:4,751 square miles (county)
Land Area:4,058 square miles (county)
Water Area:693 square miles (county)

Montrose, CA Demographic Information *

There is no Census data for the city of MONTROSE, CA. We have pulled information for the ZIP Code 91020 instead.
Total population8,415
Male population3,966
Female population4,449
Median age (years)40.2
White Population5,309
Black Population103
Indian Population30
Asian Population2,311
Hawaiian Population12
Hispanic Population1,164
Median age (Male)38.3
Median age (Female)41.6
Total households3,385
Family households (families)2,106
Average household size2.43
Average family size3.14
Total housing units3,586
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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],