80503 ZIP Code — Longmont, CO

Boulder County, Colorado

ZIP code 80503 is located in Longmont, Colorado, within Boulder County. It covers approximately 91.75 square miles and serves a population of 36,235 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 720/303.

About ZIP code 80503

The housing stock consists of a mix of housing types. Most homes were built in the 1990s, giving the area an established character. Median home value is $663,200. Owner-occupancy sits near the national average at 68%.

The gap between median ($113,168) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 25 minutes is near the national average. Remote work is prevalent — 24% of workers work from home.

Educational attainment is high — 60% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 80503 reflects a community defined by a highly educated population and a high rate of remote workers.

36,235

population

91.75

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

80503 ZIP code map

Cities in ZIP code 80503

Below are the cities the US Postal Service accepts for ZIP code 80503. Using any city not on this list may result in mail delivery delays.

City	Status
Longmont	Preferred

Nearby ZIP codes

80501 Longmont (6 mi) 80501 Longmont (6 mi) 80301 Boulder (9.1 mi) 80301 Boulder (9.1 mi) 80513 Berthoud (9.3 mi) 80513 Berthoud (9.3 mi) 80504 Longmont (10 mi) 80504 Longmont (10 mi) 80504 Longmont (10 mi) 80504 Longmont (10 mi) 80504 Longmont (10 mi) 80504 Longmont (10 mi)

Demographics updated 05/2026

Population
Total population	36,235
Population density	395 / sq mi
State FIPS	08
County FIPS	013

Geography
Land area	91.75 sq mi
Water area	3.01 sq mi
Latitude	40.1797
Longitude	-105.2055
Timezone	Mountain (MT)
Area code	720/303

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.2%	29.3%	32.5%
$50k – $100k	24.9%	25.4%	31.0%
$100k – $200k	34.5%	29.1%	26.9%
Over $200k	17.4%	16.2%	9.6%

Demographics & statistics

36,235

Population

395

People per sq mi

43.6

Median age

$113,168

Median household income

$60,502

Per capita income

$663,200

Median home value

$1,791

Median monthly rent

68.0%

Home ownership

4.8%

Poverty rate

4.3%

Unemployment

10,697

Housing units

59.9%

Bachelor's or higher

Age distribution

Male Female

522

Under 5

519

964

5–9

960

1,171

10–14

1,166

1,483

15–19

1,475

939

20–24

935

2,064

25–34

2,054

2,352

35–44

2,340

2,487

45–54

2,474

1,500

55–59

1,492

1,435

60–64

1,427

1,772

65–74

1,763

950

75–84

946

524

85+

521

← Male

Female →

Age summary

Group	Count	%
Under 18	7,343	20.3%
18 and over	28,892	79.7%
65 and over	6,476	17.9%
Median age	43.6 years

Race & ethnicity

White 84.6%

Two or more races 5.2%

Asian 4%

Hispanic or Latino 3.8%

Other race 1.3%

Black or African American 0.8%

American Indian / Alaska Native 0.2%

Group	Count	%
White	31,859	84.6%
Two or more races	1,971	5.2%
Asian	1,524	4%
Hispanic or Latino	1,428	3.8%
Other race	489	1.3%
Black or African American	315	0.8%
American Indian / Alaska Native	68	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.2%	29.3%	32.5%
$50k – $100k	24.9%	25.4%	31.0%
$100k – $200k	34.5%	29.1%	26.9%
Over $200k	17.4%	16.2%	9.6%

Under $10k 2.3%

$10k–$15k 1.1%

$15k–$25k 4.6%

$25k–$35k 3.5%

$35k–$50k 9.5%

$50k–$75k 11.8%

$75k–$100k 11.4%

$100k–$150k 19.5%

$150k–$200k 13.0%

$200k+ 23.3%

Range	% of households
Under $10k	2.3%
$10k–$15k	1.1%
$15k–$25k	4.6%
$25k–$35k	3.5%
$35k–$50k	9.5%
$50k–$75k	11.8%
$75k–$100k	11.4%
$100k–$150k	19.5%
$150k–$200k	13.0%
$200k+	23.3%
Median income	$113,168

Housing

Home values

Under $50k 1.5%

$100k–$150k 0.2%

$200k–$300k 1.0%

$300k–$500k 18.3%

$500k–$1M 62.0%

$1M+ 17.0%

Housing overview

Metric	Value
Median home value	$663,200
Median rent / month	$1,791
Owner occupied	68.0%
Renter occupied	32.0%
Vacant	3.6%
Single-family detached	67.1%
Large apartment buildings	9.1%
Mobile homes	0.7%
Median rooms	6.6
Avg household size (owned)	2.61

Year built

Era	%
2020 or later	0.3%
2010–2019	13.4%
2000–2009	19.7%
1990–1999	24.5%
1980–1989	16.3%
1970–1979	15.7%
1960–1969	6.5%
1950–1959	0.7%
1940–1949	0.3%
1939 or earlier	2.6%

Bedrooms

Size	% of units
No bedroom (studio)	1.6%
1 bedroom	10.8%
2 bedrooms	19.2%
3 bedrooms	29.4%
4 bedrooms	25.7%
5+ bedrooms	13.3%

Vehicles per household

Vehicles	% of households
No vehicle	4.7%
1 vehicle	27.7%
2 vehicles	39.4%
3 or more	28.3%

Heating fuel

Fuel type	%
Utility gas	76.3%
Electricity	19.9%
Propane / LP gas	2.8%
Fuel oil	0.1%
Wood	0.1%
Solar	0.3%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	7,902	53.0%
Cohabiting couple	1,071	7.2%
Male householder, no spouse	2,581	17.3%
Female householder, no spouse	3,353	22.5%
Households with children under 18	4,229	28.4%
Households with seniors (65+)	4,715	31.6%
Average household size	2.41

Marital status

Status	Male	Female
Never married	33.7%	27.0%
Married	55.1%	52.0%
Separated	0.8%	0.4%
Widowed	1.8%	8.6%
Divorced	8.6%	12.0%

Education

Less than 9th grade 1.3%

Some HS, no diploma 1.8%

HS graduate 12.2%

Some college, no degree 15.7%

Associate's degree 9.0%

Bachelor's degree 36.2%

Graduate / professional 23.8%

Metric	%
HS diploma or higher	96.9%
Bachelor's or higher	59.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	585	6.6%
Kindergarten	365	4.1%
Elementary school	3,388	38.4%
High school	2,698	30.6%
College / grad school	1,786	20.2%

Employment

Industry of employment

Education & healthcare 22.2%

Professional & management 20.7%

Manufacturing 13.0%

Retail trade 11.5%

Arts, food & hospitality 7.6%

Finance & real estate 4.8%

Construction 4.7%

Other services 4.6%

Public administration 3.6%

Transportation & utilities 2.5%

Information 2.0%

Wholesale trade 1.6%

Agriculture & mining 1.0%

Occupation

Category	%
Management, business & arts	59.2%
Service	12.1%
Sales & office	17.1%
Natural resources & construction	5.2%
Production & transportation	6.3%

Employment type

Type	%
Private sector	77.5%
Government	15.5%
Self-employed	6.8%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	65.5%
Carpool	6.5%
Public transit	0.9%
Walk	1.4%
Work from home	24.4%
Other means	1.4%
Avg commute (minutes)	24.7

Poverty

All people 4.8%

Under 18 years 4.4%

18 and over 4.9%

Married-couple families 2.0%

Female-led households 10.7%

Income support

Source	% of households
Social Security	27.9%
Retirement income	27.0%
Supplemental Security	3.0%
Cash public assistance	2.4%
Food stamps / SNAP	2.8%

Health indicators

Condition	%
Obesity	17.5%
High blood pressure	23.2%
High cholesterol	30.0%
Diabetes	6.4%
Heart disease	4.9%
Stroke	2.2%
Asthma	9.4%
Arthritis	20.0%
Kidney disease	2.3%
Pulmonary disease	4.5%
Cancer	7.0%

Behavior / access	%
Smoking	11.2%
Binge drinking	18.0%
No physical activity	12.3%
Less than 7 hrs sleep	23.9%
Depression	18.7%
Fair or poor health	8.2%
Poor mental health	12.0%
Poor physical health	7.5%
No health insurance	8.8%
Visited doctor (checkup)	67.1%
Visited dentist	74.5%
Cholesterol screening	92.6%
Teeth loss	6.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,888	6.6%

Disability	%
Any disability	10.0%
Under 18	2.0%
18–64 years	6.7%
65 and over	30.9%

Health insurance coverage

Type	%
Private insurance	79.4%
Public insurance	27.7%
No insurance	4.7%
Uninsured under 19	2.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	35,194	97.1%
Spanish	1,066	3.0%
Other Indo-European	478	1.4%
Asian & Pacific Islander	161	0.5%
Other languages	427	1.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	33,161	91.5%
Born in same state	32,549	89.8%
Born in different state	11,436	31.6%
Foreign born	612	1.7%
Naturalized citizen	3,074	8.5%
Not a US citizen	1,868	60.8%

Ancestry

Ancestry	Count	%
French	6,028	16.6%
Italian	5,192	14.3%
Arab	1,325	3.7%
Polish	828	2.3%
Dutch	513	1.4%

Ancestry	Count	%
English	313	0.9%
Irish	217	0.6%
Norwegian	216	0.6%
German	38	0.1%

Technology access

Metric	% of households
Computer access	41.1%
Internet access	96.8%

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

Frequently asked questions about ZIP code 80503

What city is ZIP code 80503 in?

ZIP code 80503 is primarily assigned to Longmont, Colorado.

What county is ZIP code 80503 in?

ZIP code 80503 falls within Boulder County, Colorado.

How educated is the population of ZIP code 80503?

60% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the typical home value in ZIP code 80503?

The median home value in ZIP code 80503 is $663,200.

What is the median household income in ZIP code 80503?

The median household income in ZIP code 80503 is $113,168, above the national median of ~$75,000.

What is the population of ZIP code 80503?

ZIP code 80503 has an estimated population of 36,235 residents, with a density of 395 people per square mile.

What timezone is ZIP code 80503 in?

ZIP code 80503 observes the MST timezone.