Skip to content

Montrose, CA ZIP codes

Montrose, California has 2 ZIP codes, including 1 PO Box ZIP. They are in Los Angeles County.

Population in these ZIPs
7,532
Avg. median income
$72,100population-weighted
Typical home value
$986,700population-weighted
Loading map…

Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 miles

Montrose, CA ZIP codes list

Montrose, CA ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
91020Los Angeles County7,532$72,125$986,700
91021 PO BoxLos Angeles County———

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Montrose

Frequently asked questions

What is the ZIP code for Montrose, CA?

Montrose, CA has 2 ZIP codes: 91020 and 91021.

What county is Montrose, California in?

Montrose ZIP codes are in Los Angeles County.

Which Montrose ZIP codes are PO Boxes?

91021 is a PO Box or single-organization ZIP code; it has no residential delivery area.