80303 ZIP Code — Boulder, CO

Boulder County, Colorado

ZIP code 80303 is located in Boulder, Colorado, within Boulder County. It covers approximately 21.88 square miles and serves a population of 24,865 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 303.

About ZIP code 80303

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the 1960s, giving the area an established character. Median home value is $891,000. Owner-occupancy sits near the national average at 46%.

The gap between median ($74,255) and mean household income suggests income inequality — a small number of higher earners pull the average up. Poverty affects 23% of residents, above the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 19 minutes is near the national average. Remote work is prevalent — 24% of workers work from home.

Educational attainment is high — 80% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 80303 reflects a community defined by a highly educated population, economic challenges above the national average, and a high rate of remote workers.

24,865

population

21.88

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

80303 ZIP code map

Cities in ZIP code 80303

Below are the cities the US Postal Service accepts for ZIP code 80303. Using any city not on this list may result in mail delivery delays.

City	Status
Boulder	Preferred

Nearby ZIP codes

80305 Boulder (2.1 mi) 80027 Louisville (3.7 mi) 80309 Boulder (4.2 mi) 80310 Boulder (4.9 mi) 80314 Boulder (4.9 mi) 80021 Broomfield (5.9 mi) 80021 Broomfield (5.9 mi) 80301 Boulder (6.6 mi) 80007 Arvada (6.8 mi) 80304 Boulder (7.2 mi) 80026 Lafayette (8 mi) 80020 Broomfield (8.2 mi)

Demographics updated 06/2026

Population
Total population	24,865
Population density	1,136 / sq mi
State FIPS	08
County FIPS	013

Geography
Land area	21.88 sq mi
Water area	0.93 sq mi
Latitude	39.9532
Longitude	-105.2267
Timezone	Mountain (MT)
Area code	303

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	41.2%	29.3%	32.5%
$50k – $100k	23.7%	25.4%	31.0%
$100k – $200k	19.3%	29.1%	26.9%
Over $200k	15.8%	16.2%	9.6%

Demographics & statistics

24,865

Population

1,136

People per sq mi

29.5

Median age

$74,255

Median household income

$60,151

Per capita income

$891,000

Median home value

$1,771

Median monthly rent

45.6%

Home ownership

22.7%

Poverty rate

3.6%

Unemployment

6,314

Housing units

79.5%

Bachelor's or higher

Age distribution

Male Female

321

Under 5

295

366

5–9

337

392

10–14

360

1,133

15–19

1,043

3,222

20–24

2,967

1,794

25–34

1,652

1,280

35–44

1,179

1,163

45–54

1,071

483

55–59

444

670

60–64

617

986

65–74

907

667

75–84

614

470

85+

432

← Male

Female →

Age summary

Group	Count	%
Under 18	2,660	10.7%
18 and over	22,205	89.3%
65 and over	4,076	16.4%
Median age	29.5 years

Race & ethnicity

White 79.6%

Asian 6.5%

Two or more races 6.2%

Hispanic or Latino 4.8%

Other race 2%

Black or African American 0.6%

American Indian / Alaska Native 0.2%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	20,778	79.6%
Asian	1,697	6.5%
Two or more races	1,627	6.2%
Hispanic or Latino	1,254	4.8%
Other race	527	2%
Black or African American	166	0.6%
American Indian / Alaska Native	56	0.2%
Native Hawaiian / Pacific Islander	14	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	41.2%	29.3%	32.5%
$50k – $100k	23.7%	25.4%	31.0%
$100k – $200k	19.3%	29.1%	26.9%
Over $200k	15.8%	16.2%	9.6%

Under $10k 13.6%

$10k–$15k 1.7%

$15k–$25k 7.0%

$25k–$35k 7.8%

$35k–$50k 8.9%

$50k–$75k 11.8%

$75k–$100k 9.9%

$100k–$150k 13.1%

$150k–$200k 7.6%

$200k+ 18.6%

Range	% of households
Under $10k	13.6%
$10k–$15k	1.7%
$15k–$25k	7.0%
$25k–$35k	7.8%
$35k–$50k	8.9%
$50k–$75k	11.8%
$75k–$100k	9.9%
$100k–$150k	13.1%
$150k–$200k	7.6%
$200k+	18.6%
Median income	$74,255

Housing

Home values

Under $50k 0.7%

$50k–$100k 0.7%

$100k–$150k 0.3%

$150k–$200k 0.6%

$200k–$300k 1.8%

$300k–$500k 10.0%

$500k–$1M 47.7%

$1M+ 38.0%

Housing overview

Metric	Value
Median home value	$891,000
Median rent / month	$1,771
Owner occupied	45.6%
Renter occupied	54.4%
Vacant	8.1%
Single-family detached	36.5%
Large apartment buildings	35.6%
Mobile homes	0.0%
Median rooms	4.4
Avg household size (owned)	2.28

Year built

Era	%
2020 or later	0.3%
2010–2019	6.8%
2000–2009	9.2%
1990–1999	11.6%
1980–1989	20.9%
1970–1979	17.5%
1960–1969	26.5%
1950–1959	5.8%
1940–1949	0.4%
1939 or earlier	1.0%

Bedrooms

Size	% of units
No bedroom (studio)	6.3%
1 bedroom	22.6%
2 bedrooms	26.6%
3 bedrooms	18.9%
4 bedrooms	18.4%
5+ bedrooms	7.3%

Vehicles per household

Vehicles	% of households
No vehicle	10.9%
1 vehicle	34.1%
2 vehicles	36.2%
3 or more	18.8%

Heating fuel

Fuel type	%
Utility gas	67.1%
Electricity	28.0%
Propane / LP gas	1.3%
Fuel oil	0.1%
Wood	0.3%
Solar	0.6%
No fuel used	1.3%

Households & families

Household type	Count	%
Married-couple family	3,731	32.2%
Cohabiting couple	930	8.0%
Male householder, no spouse	3,761	32.4%
Female householder, no spouse	3,173	27.4%
Households with children under 18	1,636	14.1%
Households with seniors (65+)	2,848	24.6%
Average household size	2.07

Marital status

Status	Male	Female
Never married	58.1%	47.4%
Married	33.0%	36.6%
Separated	0.9%	0.6%
Widowed	2.0%	6.9%
Divorced	5.9%	8.5%

Education

Less than 9th grade 0.4%

Some HS, no diploma 0.7%

HS graduate 5.7%

Some college, no degree 10.3%

Associate's degree 3.4%

Bachelor's degree 37.9%

Graduate / professional 41.6%

Metric	%
HS diploma or higher	98.9%
Bachelor's or higher	79.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	268	2.7%
Kindergarten	138	1.4%
Elementary school	1,216	12.1%
High school	794	7.9%
College / grad school	7,605	75.9%

Employment

Industry of employment

Education & healthcare 28.3%

Professional & management 18.5%

Arts, food & hospitality 14.6%

Retail trade 8.7%

Manufacturing 7.6%

Finance & real estate 5.0%

Transportation & utilities 4.0%

Other services 3.4%

Information 2.6%

Public administration 2.6%

Agriculture & mining 1.7%

Construction 1.5%

Wholesale trade 1.5%

Occupation

Category	%
Management, business & arts	61.0%
Service	16.8%
Sales & office	15.0%
Natural resources & construction	2.6%
Production & transportation	4.6%

Employment type

Type	%
Private sector	74.7%
Government	18.6%
Self-employed	6.2%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	47.0%
Carpool	5.7%
Public transit	5.1%
Walk	7.3%
Work from home	24.1%
Other means	10.8%
Avg commute (minutes)	19.0

Poverty

All people 22.7%

Under 18 years 3.1%

18 and over 25.1%

Married-couple families 2.6%

Female-led households 18.5%

Income support

Source	% of households
Social Security	19.5%
Retirement income	19.2%
Supplemental Security	0.9%
Cash public assistance	1.3%
Food stamps / SNAP	1.5%

Health indicators

Condition	%
Obesity	16.3%
High blood pressure	20.3%
High cholesterol	26.0%
Diabetes	5.5%
Heart disease	4.6%
Stroke	2.1%
Asthma	9.8%
Arthritis	16.8%
Kidney disease	2.3%
Pulmonary disease	4.2%
Cancer	6.0%

Behavior / access	%
Smoking	10.7%
Binge drinking	19.3%
No physical activity	12.9%
Less than 7 hrs sleep	23.7%
Depression	19.6%
Fair or poor health	8.7%
Poor mental health	13.9%
Poor physical health	7.3%
No health insurance	10.1%
Visited doctor (checkup)	65.1%
Visited dentist	69.8%
Cholesterol screening	86.2%
Teeth loss	8.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	679	3.1%

Disability	%
Any disability	7.8%
Under 18	0.6%
18–64 years	4.6%
65 and over	27.9%

Health insurance coverage

Type	%
Private insurance	85.8%
Public insurance	22.5%
No insurance	2.9%
Uninsured under 19	0.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	24,249	97.5%
Spanish	716	3.0%
Other Indo-European	226	0.9%
Asian & Pacific Islander	70	0.3%
Other languages	389	1.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	22,071	88.8%
Born in same state	21,762	87.5%
Born in different state	7,335	29.5%
Foreign born	309	1.2%
Naturalized citizen	2,794	11.2%
Not a US citizen	1,345	48.1%

Ancestry

Ancestry	Count	%
French	3,298	13.3%
Italian	2,996	12%
Arab	1,103	4.4%
Polish	666	2.7%
English	286	1.2%

Ancestry	Count	%
German	158	0.6%
Dutch	137	0.6%
Irish	124	0.5%
Norwegian	113	0.5%

Technology access

Metric	% of households
Computer access	46.6%
Internet access	98.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 80303

What city is ZIP code 80303 in?

ZIP code 80303 is primarily assigned to Boulder, Colorado.

What county is ZIP code 80303 in?

ZIP code 80303 falls within Boulder County, Colorado.

How educated is the population of ZIP code 80303?

80% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the poverty rate in ZIP code 80303?

23% of residents in ZIP code 80303 live below the poverty line, above the national average.

What is the typical home value in ZIP code 80303?

The median home value in ZIP code 80303 is $891,000.

What is the population of ZIP code 80303?

ZIP code 80303 has an estimated population of 24,865 residents, with a density of 1,136 people per square mile.

What timezone is ZIP code 80303 in?

ZIP code 80303 observes the MST timezone.