Skip to content

Signal Hill, CA ZIP code

The ZIP code for Signal Hill, California is 90755. It is in Los Angeles County.

Population in these ZIPs
11,521
Avg. median income
$113,500population-weighted
Typical home value
$701,900population-weighted
Loading map…

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

ZIP codes within 10 miles

Signal Hill, CA ZIP code list

Signal Hill, CA ZIP codes
ZIP codePopulationMedian incomeTypical home value
9075511,521$113,512$701,900

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 Signal Hill

Frequently asked questions

What is the ZIP code for Signal Hill, CA?

The ZIP code for Signal Hill, CA is 90755.

What county is Signal Hill, California in?

Signal Hill ZIP codes are in Los Angeles County.