80540 ZIP Code — Lyons, CO

Boulder County, Colorado

ZIP code 80540 is located in Lyons, Colorado, within Boulder County. It covers approximately 152.76 square miles and serves a population of 4,637 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 720/303.

About ZIP code 80540

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $728,300. Owner-occupancy is high at 84%, well above the national average.

Median household income is $132,398. The poverty rate of 6% 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 32 minutes is near the national average. Remote work is prevalent — 25% 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 80540 reflects a community defined by a highly educated population, high homeownership, and a high rate of remote workers.

4,637

population

152.76

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

80540 ZIP code map

Cities in ZIP code 80540

Below are the cities the US Postal Service accepts for ZIP code 80540. Using any city not on this list may result in mail delivery delays.

City	Status
Lyons	Preferred

Nearby ZIP codes

80510 Allenspark (3.2 mi) 80481 Ward (10.8 mi) 80455 Jamestown (11.8 mi) 80517 Estes Park (13.4 mi) 80503 Longmont (14.1 mi) 80503 Longmont (14.1 mi) 80302 Boulder (14.4 mi) 80515 Drake (15.9 mi) 80304 Boulder (16.5 mi) 80537 Loveland (17.2 mi) 80513 Berthoud (18.6 mi) 80310 Boulder (18.9 mi)

Demographics updated 06/2026

Population
Total population	4,637
Population density	30 / sq mi
State FIPS	08
County FIPS	013

Geography
Land area	152.76 sq mi
Water area	0.50 sq mi
Latitude	40.2480
Longitude	-105.4573
Timezone	Mountain (MT)
Area code	720/303

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	14.8%	29.3%	32.5%
$50k – $100k	23.1%	25.4%	31.0%
$100k – $200k	48.2%	29.1%	26.9%
Over $200k	13.9%	16.2%	9.6%

Demographics & statistics

4,637

Population

People per sq mi

48.9

Median age

$132,398

Median household income

$63,875

Per capita income

$728,300

Median home value

$1,694

Median monthly rent

84.4%

Home ownership

5.5%

Poverty rate

2.1%

Unemployment

2,223

Housing units

59.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

131

5–9

110

213

10–14

180

143

15–19

121

20–24

124

25–34

105

392

35–44

330

450

45–54

379

269

55–59

227

202

60–64

170

336

65–74

283

148

75–84

124

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	973	21.0%
18 and over	3,664	79.0%
65 and over	917	19.8%
Median age	48.9 years

Race & ethnicity

White 85%

Two or more races 7%

Hispanic or Latino 5.6%

American Indian / Alaska Native 1%

Asian 0.5%

Other race 0.5%

Black or African American 0.4%

Group	Count	%
White	4,175	85%
Two or more races	342	7%
Hispanic or Latino	275	5.6%
American Indian / Alaska Native	50	1%
Asian	27	0.5%
Other race	23	0.5%
Black or African American	20	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	14.8%	29.3%	32.5%
$50k – $100k	23.1%	25.4%	31.0%
$100k – $200k	48.2%	29.1%	26.9%
Over $200k	13.9%	16.2%	9.6%

Under $10k 3.5%

$10k–$15k 1.9%

$15k–$25k 3.4%

$25k–$35k 2.7%

$35k–$50k 3.4%

$50k–$75k 7.9%

$75k–$100k 10.6%

$100k–$150k 23.7%

$150k–$200k 20.5%

$200k+ 22.4%

Range	% of households
Under $10k	3.5%
$10k–$15k	1.9%
$15k–$25k	3.4%
$25k–$35k	2.7%
$35k–$50k	3.4%
$50k–$75k	7.9%
$75k–$100k	10.6%
$100k–$150k	23.7%
$150k–$200k	20.5%
$200k+	22.4%
Median income	$132,398

Housing

Home values

Under $50k 0.8%

$100k–$150k 2.3%

$150k–$200k 1.6%

$200k–$300k 1.2%

$300k–$500k 20.0%

$500k–$1M 56.8%

$1M+ 17.3%

Housing overview

Metric	Value
Median home value	$728,300
Median rent / month	$1,694
Owner occupied	84.4%
Renter occupied	15.6%
Vacant	21.4%
Single-family detached	93.4%
Large apartment buildings	0.0%
Mobile homes	1.1%
Median rooms	6.8
Avg household size (owned)	2.37

Year built

Era	%
2020 or later	0.0%
2010–2019	4.6%
2000–2009	17.4%
1990–1999	17.6%
1980–1989	13.2%
1970–1979	20.7%
1960–1969	10.8%
1950–1959	7.3%
1940–1949	1.9%
1939 or earlier	6.5%

Bedrooms

Size	% of units
No bedroom (studio)	1.3%
1 bedroom	6.4%
2 bedrooms	20.7%
3 bedrooms	41.8%
4 bedrooms	20.7%
5+ bedrooms	9.1%

Vehicles per household

Vehicles	% of households
No vehicle	1.2%
1 vehicle	18.0%
2 vehicles	49.4%
3 or more	31.5%

Heating fuel

Fuel type	%
Utility gas	42.8%
Electricity	16.3%
Propane / LP gas	33.5%
Fuel oil	0.2%
Wood	6.6%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	1,151	57.8%
Cohabiting couple	121	6.1%
Male householder, no spouse	436	21.9%
Female householder, no spouse	284	14.3%
Households with children under 18	557	28.0%
Households with seniors (65+)	664	33.3%
Average household size	2.33

Marital status

Status	Male	Female
Never married	19.2%	15.4%
Married	58.5%	67.8%
Separated	0.0%	0.6%
Widowed	1.0%	6.4%
Divorced	21.2%	9.8%

Education

Less than 9th grade 0.6%

Some HS, no diploma 1.6%

HS graduate 9.2%

Some college, no degree 19.5%

Associate's degree 9.2%

Bachelor's degree 33.4%

Graduate / professional 26.4%

Metric	%
HS diploma or higher	97.8%
Bachelor's or higher	59.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	74	6.7%
Kindergarten	33	3.0%
Elementary school	527	47.5%
High school	286	25.8%
College / grad school	190	17.1%

Employment

Industry of employment

Education & healthcare 29.3%

Professional & management 26.2%

Manufacturing 10.4%

Arts, food & hospitality 7.1%

Construction 6.4%

Retail trade 5.1%

Finance & real estate 3.5%

Transportation & utilities 3.3%

Other services 3.0%

Public administration 1.8%

Wholesale trade 1.7%

Agriculture & mining 1.2%

Information 1.1%

Occupation

Category	%
Management, business & arts	69.1%
Service	10.7%
Sales & office	12.4%
Natural resources & construction	4.3%
Production & transportation	3.5%

Employment type

Type	%
Private sector	71.5%
Government	17.2%
Self-employed	10.8%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	61.6%
Carpool	11.8%
Public transit	0.0%
Walk	0.7%
Work from home	24.7%
Other means	1.2%
Avg commute (minutes)	31.9

Poverty

All people 5.5%

Under 18 years 1.2%

18 and over 6.6%

Married-couple families 2.2%

Female-led households 53.2%

Income support

Source	% of households
Social Security	28.6%
Retirement income	24.5%
Supplemental Security	2.5%
Cash public assistance	4.0%
Food stamps / SNAP	4.2%

Health indicators

Condition	%
Obesity	20.1%
High blood pressure	25.1%
High cholesterol	31.8%
Diabetes	7.1%
Heart disease	5.2%
Stroke	2.3%
Asthma	9.4%
Arthritis	22.3%
Kidney disease	2.4%
Pulmonary disease	5.0%
Cancer	7.4%

Behavior / access	%
Smoking	11.9%
Binge drinking	18.2%
No physical activity	12.1%
Less than 7 hrs sleep	24.4%
Depression	19.6%
Fair or poor health	8.5%
Poor mental health	12.2%
Poor physical health	8.0%
No health insurance	8.0%
Visited doctor (checkup)	67.4%
Visited dentist	73.8%
Cholesterol screening	93.7%
Teeth loss	6.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	290	7.9%

Disability	%
Any disability	7.6%
Under 18	0.0%
18–64 years	3.9%
65 and over	26.6%

Health insurance coverage

Type	%
Private insurance	82.6%
Public insurance	26.8%
No insurance	3.2%
Uninsured under 19	4.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,510	97.3%
Spanish	29	0.6%
Other Indo-European	29	0.6%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,369	94.2%
Born in same state	4,329	93.4%
Born in different state	1,373	29.6%
Foreign born	40	0.9%
Naturalized citizen	268	5.8%
Not a US citizen	76	28.4%

Ancestry

Ancestry	Count	%
Italian	766	16.5%
French	569	12.3%
Polish	381	8.2%
English	146	3.1%
Arab	113	2.4%

Ancestry	Count	%
Dutch	72	1.6%
German	44	0.9%
Irish	38	0.8%
Norwegian	7	0.2%

Technology access

Metric	% of households
Computer access	43.0%
Internet access	97.4%

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

Frequently asked questions about ZIP code 80540

What city is ZIP code 80540 in?

ZIP code 80540 is primarily assigned to Lyons, Colorado.

What county is ZIP code 80540 in?

ZIP code 80540 falls within Boulder County, Colorado.

How educated is the population of ZIP code 80540?

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

Is ZIP code 80540 mostly owner-occupied?

84% of occupied units in ZIP code 80540 are owner-occupied, well above the national average.

What is the median household income in ZIP code 80540?

The median household income in ZIP code 80540 is $132,398, above the national median of ~$75,000.

What is the typical home value in ZIP code 80540?

The median home value in ZIP code 80540 is $728,300.

What timezone is ZIP code 80540 in?

ZIP code 80540 observes the MST timezone.