ZIP code · Broomfield · Colorado · United States

ZIP code 80021 — Broomfield

ZIP code 80021 serves Broomfield, Colorado.

Postal code
80021
Single source Value from one source, not cross-checked.
City
Broomfield
County
Jefferson FIPS 08059
State
Colorado
Country
United States
Coordinates
39.8854, -105.1139 — precision precise (locality)
View on OpenStreetMap
Population
35,562 (ZCTA, ACS 5-year)
Population density
2,151 / sq mi
Land area
16.5 sq mi (42.8 km²) (ZCTA, ACS 5-year)
Median household income
$105,645
Per-capita income
$59,136
Median age
36.4
Households
16,402
Housing units
17,353
Median home value
$530,300
Median gross rent
$2,054 / month
Congressional district
CO-7 (119th Congress)
USDA hardiness zone
6a (-10 to -5 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Denver (UTC−7 / UTC−6 DST)
Area codes
303, 720, 983 (from the nearest rate centre)
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 Jul (avg high 91°F), coldest Jan (avg low 19°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F485058647285918982675648
Avg low °F192028354453595749372719
Precip in0.50.51.21.92.41.51.71.31.21.10.70.5

NOAA 1991–2020 climate normals from the nearest station: NORTHGLENN (5.4 mi) · NOAA NCEI

Places in ZIP 80021

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