ZIP code 80305 — Boulder

Postal code

80305Copy

Single source Value from one source, not cross-checked.

City

Boulder

County

Boulder FIPS 08013

State

Colorado

Country

United States

Coordinates

39.9807, -105.2531 — precision precise (locality)
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Population

16,101 (ZCTA, ACS 5-year)

Population density

2,767 / sq mi

Land area

5.8 sq mi (15.1 km²) (ZCTA, ACS 5-year)

Median household income

$120,933

Per-capita income

$72,314

Median age

37.7

Households

6,923

Housing units

7,263

Median home value

$985,700

Median gross rent

$2,198 / month

Congressional district

CO-2 (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

720, 303, 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.

Tools: compare 80305 with another ZIP · ZIPs within 25 miles · distance from 80305