Alamosa ZIP Code List — Alamosa County, CO

There are 2 unique ZIP codes in Alamosa, Colorado. Area code: 719.

ZIP codes

369.00

sq mi land

0.54

sq mi water

719

area code

Alamosa, CO ZIP code map

About Alamosa, CO

Alamosa is a charming city located in Colorado, known for its stunning natural beauty and rich cultural heritage. It serves as the county seat of Alamosa County and features a vibrant community with roots in agriculture and tourism. Surrounded by the majestic Sangre de Cristo Mountains, Alamosa offers both residents and visitors a unique blend of outdoor adventure and small-town charm.

Location & geography

Alamosa is located in the San Luis Valley in south-central Colorado, making it a gateway to the diverse terrains of the region. It sits approximately 25 miles from the city of Monte Vista and 40 miles from the larger town of Pueblo. The city covers a total land area of 369.00 square miles, with a minor water area of 0.54 square miles, showcasing the vast expanse of the valley.

Community & economy

The character of Alamosa is defined by its friendly residents and strong community spirit, emphasizing outdoor activities and cultural events. The local economy thrives on industries such as agriculture, tourism, and healthcare, contributing to the community's sustainability. Daily life in Alamosa includes participating in events like the annual Alamosa Round-up Rodeo and enjoying the local cuisine, which features flavors inspired by both traditional and contemporary influences.

Transportation

Alamosa is served by several major highways, including U.S. Route 285 and U.S. Route 160, which connect it to neighboring cities and regions. The nearest airport is the San Luis Valley Regional Airport, offering convenient access for travelers to the city. Public transportation options are limited, but the city provides a welcoming atmosphere for those who prefer to explore on foot or by bike.

History

Established in the late 19th century, Alamosa quickly emerged as a central hub for agriculture and trade in the region. Key industries have historically revolved around farming and livestock, supporting the town's growth as a vital center in Alamosa County. Notable events in its history include the establishment of the Rio Grande Scenic Railroad, which continues to draw visitors to the area today.

Did you know?

One surprising fact about Alamosa is that it is home to the Great Sand Dunes National Park and Preserve, which features the tallest sand dunes in North America. Additionally, the city boasts a rich history connected to the early days of the railroad, which played a significant role in its development.

ZIP codes for Alamosa, CO (2)

ZIP code	City	County	Map
81101	Alamosa	Alamosa	View map
81102	Alamosa	Alamosa	View map

Demographics & statistics

15,245

Population

32.6

Median age

$52,125

Median household income

$28,704

Per capita income

$197,800

Median home value

$824

Median monthly rent

56.6%

Home ownership

16.4%

Poverty rate

3.3%

Unemployment

3,985

Housing units

28.1%

Bachelor's or higher

Age distribution

Male Female

458

Under 5

473

547

5–9

565

490

10–14

507

764

15–19

789

756

20–24

781

1,050

25–34

1,084

881

35–44

911

663

45–54

685

350

55–59

362

470

60–64

485

730

65–74

754

240

75–84

248

85+

103

← Male

Female →

Age summary

Group	Count	%
Under 18	3,625	23.8%
18 and over	11,620	76.2%
65 and over	2,174	14.3%
Median age	32.6 years

Race & ethnicity

White 54.5%

Hispanic or Latino 17.9%

Two or more races 14.6%

Other race 6.1%

American Indian / Alaska Native 3.8%

Asian 1.9%

Black or African American 1%

Native Hawaiian / Pacific Islander 0.2%

Group	Count	%
White	10,116	54.5%
Hispanic or Latino	3,315	17.9%
Two or more races	2,716	14.6%
Other race	1,127	6.1%
American Indian / Alaska Native	713	3.8%
Asian	352	1.9%
Black or African American	177	1%
Native Hawaiian / Pacific Islander	44	0.2%

Household income

Under $10k 4.7%

$10k–$15k 6.8%

$15k–$25k 12.4%

$25k–$35k 9.7%

$35k–$50k 12.9%

$50k–$75k 20.0%

$75k–$100k 12.1%

$100k–$150k 11.0%

$150k–$200k 5.1%

$200k+ 5.3%

Range	% of households
Under $10k	4.7%
$10k–$15k	6.8%
$15k–$25k	12.4%
$25k–$35k	9.7%
$35k–$50k	12.9%
$50k–$75k	20.0%
$75k–$100k	12.1%
$100k–$150k	11.0%
$150k–$200k	5.1%
$200k+	5.3%
Median income	$52,125

Housing

Home values

Under $50k 12.0%

$50k–$100k 7.8%

$100k–$150k 14.9%

$150k–$200k 16.3%

$200k–$300k 22.7%

$300k–$500k 19.7%

$500k–$1M 5.0%

$1M+ 1.6%

Housing overview

Metric	Value
Median home value	$197,800
Median rent / month	$824
Owner occupied	56.6%
Renter occupied	43.4%
Vacant	8.6%
Single-family detached	61.5%
Large apartment buildings	1.8%
Mobile homes	10.5%
Median rooms	5.3
Avg household size (owned)	2.59

Year built

Era	%
2020 or later	0.0%
2010–2019	9.9%
2000–2009	14.1%
1990–1999	16.8%
1980–1989	12.6%
1970–1979	14.0%
1960–1969	10.9%
1950–1959	7.1%
1940–1949	2.9%
1939 or earlier	11.8%

Bedrooms

Size	% of units
No bedroom (studio)	1.6%
1 bedroom	9.1%
2 bedrooms	27.7%
3 bedrooms	42.5%
4 bedrooms	16.2%
5+ bedrooms	2.9%

Vehicles per household

Vehicles	% of households
No vehicle	6.3%
1 vehicle	31.2%
2 vehicles	34.9%
3 or more	27.6%

Heating fuel

Fuel type	%
Utility gas	46.8%
Electricity	30.8%
Propane / LP gas	12.9%
Fuel oil	0.2%
Wood	6.0%
Solar	0.1%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	2,577	42.6%
Cohabiting couple	292	4.8%
Male householder, no spouse	1,453	24.0%
Female householder, no spouse	1,721	28.5%
Households with children under 18	1,746	28.9%
Households with seniors (65+)	1,709	28.3%
Average household size	2.36

Marital status

Status	Male	Female
Never married	41.8%	30.2%
Married	41.8%	46.2%
Separated	1.8%	0.4%
Widowed	2.6%	7.1%
Divorced	12.1%	16.2%

Education

Less than 9th grade 5.4%

Some HS, no diploma 4.7%

HS graduate 27.7%

Some college, no degree 24.8%

Associate's degree 9.2%

Bachelor's degree 15.2%

Graduate / professional 12.8%

Metric	%
HS diploma or higher	89.8%
Bachelor's or higher	28.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	228	4.9%
Kindergarten	302	6.5%
Elementary school	1,575	34.1%
High school	673	14.6%
College / grad school	1,842	39.9%

Employment

Industry of employment

Education & healthcare 30.1%

Retail trade 9.2%

Arts, food & hospitality 9.2%

Agriculture & mining 8.4%

Finance & real estate 7.6%

Professional & management 7.2%

Public administration 7.0%

Other services 6.2%

Construction 5.9%

Transportation & utilities 3.9%

Manufacturing 3.4%

Wholesale trade 1.5%

Information 0.4%

Occupation

Category	%
Management, business & arts	33.9%
Service	18.6%
Sales & office	25.2%
Natural resources & construction	12.3%
Production & transportation	10.0%

Employment type

Type	%
Private sector	70.8%
Government	21.7%
Self-employed	7.3%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	80.0%
Carpool	11.6%
Public transit	0.2%
Walk	3.7%
Other means	0.7%
Avg commute (minutes)	15.1

Poverty

All people 16.4%

Under 18 years 15.6%

18 and over 16.6%

Married-couple families 6.4%

Female-led households 29.4%

Income support

Source	% of households
Social Security	32.1%
Retirement income	19.5%
Supplemental Security	8.9%
Cash public assistance	5.8%
Food stamps / SNAP	26.4%

Health indicators

Condition	%
High blood pressure	27.5%
High cholesterol	28.0%
Heart disease	5.9%
Stroke	3.0%
Asthma	10.7%
Arthritis	22.2%
Kidney disease	3.1%
Pulmonary disease	6.6%
Cancer	5.2%

Behavior / access	%
Binge drinking	17.2%
No physical activity	24.9%
Less than 7 hrs sleep	30.0%
Fair or poor health	17.3%
Poor mental health	15.9%
Poor physical health	11.9%
No health insurance	21.7%
Visited doctor (checkup)	66.6%
Visited dentist	56.3%
Cholesterol screening	85.7%
Teeth loss	16.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	594	5.1%

Disability	%
Any disability	15.4%
Under 18	6.5%
18–64 years	15.9%
65 and over	28.5%

Health insurance coverage

Type	%
Private insurance	55.5%
Public insurance	47.0%
Uninsured under 19	4.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	14,314	93.9%
Spanish	720	5.0%
Other Indo-European	628	4.4%
Asian & Pacific Islander	11	0.1%
Other languages	27	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	14,586	95.7%
Born in same state	14,446	94.8%
Born in different state	10,283	67.5%
Foreign born	140	0.9%
Naturalized citizen	659	4.3%
Not a US citizen	356	54.0%

Ancestry

Ancestry	Count	%
Italian	1,758	11.5%
French	1,209	7.9%
Arab	292	1.9%
Polish	229	1.5%
English	185	1.2%

Ancestry	Count	%
Norwegian	75	0.5%
Dutch	30	0.2%
German	16	0.1%
Irish	13	0.1%

Technology access

Metric	% of households
Computer access	39.6%
Internet access	92.8%

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

Frequently asked questions

What ZIP codes does Alamosa, CO have?

Alamosa, CO has 2 ZIP codes: 81101, 81102. Each ZIP code serves a distinct delivery area within the city and surrounding region.

What is the main ZIP code for Alamosa, CO?

The primary ZIP code for Alamosa, CO is 81101. The city uses area code 719 for phone service.

What county is Alamosa, CO in?

Alamosa is located in Alamosa County, Colorado.

How many ZIP codes are in Alamosa, CO?

Alamosa, CO has 2 ZIP codes.

What ZIP code is Adams State University located in?

Adams State University's main campus in Alamosa is located in ZIP code 81101, which covers the central and western portions of the city.

Which ZIP code covers downtown Alamosa and the historic plaza area?

Downtown Alamosa, including the historic plaza and main commercial district, is located in ZIP code 81101.