ZIP code · Sierra Madre · California · United States

ZIP code 91024 — Sierra Madre

ZIP code 91024 serves Sierra Madre, California.

Postal code
91024
Single source Value from one source, not cross-checked.
City
Sierra Madre
County
Los Angeles FIPS 06037
State
California
Country
United States
Coordinates
34.1651, -118.0519 — precision precise (locality)
View on OpenStreetMap
Population
11,020 (ZCTA, ACS 5-year)
Population density
3,154 / sq mi
Land area
3.5 sq mi (9.1 km²) (ZCTA, ACS 5-year)
Median household income
$141,094
Per-capita income
$83,522
Median age
46.9
Households
4,711
Housing units
5,113
Median home value
$1,172,200
Median gross rent
$2,086 / month
Congressional district
CA-28 (119th Congress)
USDA hardiness zone
10a (30 to 35 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Los_Angeles (UTC−8 / UTC−7 DST)
Area code
626
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Aug (avg high 85°F), coldest Feb (avg low 37°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F565559637079858581726355
Avg low °F383739424858646459514337
Precip in7.78.35.12.01.10.20.20.00.31.31.94.0

NOAA 1991–2020 climate normals from the nearest station: MT WILSON CBS (4.7 mi) · NOAA NCEI

Places in ZIP 91024

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page