ZIP code · Monrovia · California · United States

ZIP code 91016 — Monrovia

ZIP code 91016 serves Monrovia, California.

Postal code
91016
Single source Value from one source, not cross-checked.
City
Monrovia
County
Los Angeles FIPS 06037
State
California
Country
United States
Coordinates
34.1440, -118.0014 — precision precise (locality)
View on OpenStreetMap
Population
41,710 (ZCTA, ACS 5-year)
Population density
4,919 / sq mi
Land area
8.5 sq mi (22 km²) (ZCTA, ACS 5-year)
Median household income
$99,555
Per-capita income
$46,981
Median age
38.3
Households
15,312
Housing units
16,171
Median home value
$874,100
Median gross rent
$2,008 / month
Congressional districts
CA-31 (also 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 88°F), coldest Dec (avg low 45°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F696871747681868887817468
Avg low °F464751535862656664575145
Precip in3.64.22.50.60.50.10.00.00.10.60.92.4

NOAA 1991–2020 climate normals from the nearest station: SAN GABRIEL FIRE DEPT (7.0 mi) · NOAA NCEI

Places in ZIP 91016

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