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ZIP code

80305

Boulder, CO

STANDARD

80305 covers Boulder in Boulder County, with 16,101 people in the ACS 2023 estimate.

Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology

ACS 2023 population

16,101

Median household income

$120,933

Median home value

$985,700

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 80305. Methodology

ZIP code map of 80305

Census ZCTA boundary for ZIP 80305 in Boulder, Colorado
Census ZCTA boundary for ZIP 80305 in Boulder, Colorado. A ZCTA is not the same as a USPS ZIP code. Boundaries: U.S. Census Bureau. Methodology · Data sources
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About ZIP code 80305

Type

STANDARD

City

Boulder

County

Boulder County

Timezone

America/Denver

Area codes

303, 720, 983

Land area

5.8 sq mi

Water area

0.05 sq mi

Households

7,263

Median gross rent

$2,198

More enterprise fields

Timezone
America/Denver
Area Codes
303, 720, 983
World Region
NA
Country
US

Commercial ZIP directory · not ACS

Commercial ZIP directory population_count for ZCTA 80305. Not ACS. Methodology

People in 80305

Race

  • White14,347
  • Black or African American132
  • American Indian or Alaska Native76
  • Asian966
  • Native Hawaiian and Pacific Islander8
  • Other race339
  • Two or more races1,415

Hispanic or Latino (any race): 1,107

Age

  • Under 101,400
  • 10 to 192,043
  • 20 to 293,421
  • 30 to 392,240
  • 40 to 492,304
  • 50 to 592,235
  • 60 to 691,859
  • 70 to 791,180
  • 80 and older601

Income and housing in 80305

Poverty rate

12.6%

Median earnings

$58,905

Median household income

$120,933

Median home value

$985,700

Median gross rent

$2,198

Education

  • High school graduate99.1%
  • Bachelor's degree82.5%
  • Graduate degree43.5%

Places covering 80305

Cities and places — Population overlap

Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Counties — Population overlap

Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.

ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

1.3% of this ZIP is outside city limits (a real overlap row, not missing data).

Population history for 80305

IRS populationACS population
19,1049,552020052023

Hover the chart or read the table below (Year | ACS | IRS).

Population history. Year | ACS population | IRS population. ACS and IRS are separate series. Blank cells mean that source did not publish a count for the year.
YearACS populationIRS population
200513,346
200612,892
200713,584
200813,540
200913,888
201013,954
201117,68314,126
201217,32614,250
201317,68914,340
201417,40114,730
201517,35814,980
201617,64314,490
201717,46214,740
201817,50214,580
201917,12614,540
202017,30514,210
202116,15314,200
202216,28013,980
202316,101

ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.

ZIP codes near 80305

12 nearest ZIP centroids (any distance)

  1. 80310Boulder2.0 miPop 7,530 · Income —
  2. 80303Boulder2.1 miPop 24,934 · Income $77,344
  3. 80025Eldorado Springs4.5 miPop 101 · Income $128,145
  4. 80027Louisville5.1 miPop 33,998 · Income $153,165
  5. 80304Boulder5.1 miPop 25,634 · Income $121,534
  6. 80301Boulder5.4 miPop 25,252 · Income $92,974
  7. 80302Boulder6.3 miPop 29,751 · Income $60,649
  8. 80007Arvada8.1 miPop 18,290 · Income $171,017
  9. 80026Lafayette8.2 miPop 32,549 · Income $115,031
  10. 80021Broomfield9.3 miPop 35,562 · Income $105,645
  11. 80471Pinecliffe9.5 miPop 0 · Income —
  12. 80544Niwot9.6 miPop 0 · Income —

ZIP centroids within 2 miles

ZIP centroids within 2 miles of 80305, measured by Census internal point.
ZIPCityStateDistance (miles)ACS populationMedian income
80310BoulderCO2.0 mi7,530—

ZIPs within 2 miles of this place

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80305 Boulder, CO

Looking up ZIP codes within 2 miles of 80305 Boulder, CO, measured by centroid distance.

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ZIP code 80305 FAQ

What city is ZIP code 80305 in?
80305 is in Boulder, CO.
What county is 80305 in?
80305 is in Boulder County.
What is the median household income in 80305?
The median household income in 80305 is $120,933.
Which ZIP codes are near 80305?
Use the radius tool on this page to list ZIP codes within a chosen distance of 80305.