San Luis ZIP Codes — Costilla County, CO

There is one unique ZIP code in San Luis, Colorado and it is 81152. Area code: 719.

ZIP codes

480.98

sq mi land

1.96

sq mi water

719

area code

San Luis, CO ZIP code map

About San Luis, CO

San Luis, Colorado, is a quaint and historic town known for its rich cultural heritage and small-town charm. Nestled in Costilla County, it offers a unique glimpse into the past with its traditional architecture and various community events celebrating local traditions. As one of the state's oldest towns, founded in 1851, San Luis continues to be a vibrant community filled with proud residents.

Location & geography

San Luis is located in the southern part of Colorado, situated amidst the picturesque Sangre de Cristo Mountains. The nearest cities include Alamosa, which is approximately 35 miles to the west, and Walsenburg, located about 45 miles to the southeast. The town spans a land area of 480.98 square miles, with 1.96 square miles of water, contributing to its expansive and scenic terrain.

Community & economy

The character of San Luis is deeply rooted in its cultural diversity and history, reflecting both Hispanic and Anglo traditions. The local economy is primarily driven by agriculture, tourism, and small businesses, fostering a close-knit community atmosphere. Daily life in San Luis often revolves around local markets, community gatherings, and outdoor activities that celebrate the beautiful surrounding landscape.

Transportation

San Luis is serviced by Colorado State Highway 159, which provides access to neighboring towns and regional attractions. The nearest major airport is San Luis Valley Regional Airport, located approximately 36 miles away in Alamosa. Public transit options are limited, emphasizing the town’s small-town feel where residents primarily rely on personal vehicles.

History

San Luis was founded in 1851, making it the oldest town in Colorado, and has a rich history that includes early settlements by Hispanic families and gold prospectors. The area's economy was historically supported by agriculture and mining, with notable developments in the early 20th century contributing to the town's growth. Over the years, San Luis has hosted cultural events that celebrate its heritage, fostering community pride and engagement.

Did you know?

One surprising fact about San Luis is that it is home to the San Luis People's Market, which highlights local produce and crafts, showcasing the talents of community members. Additionally, the town's historic church, the San Luis Catholic Church, is one of the oldest in Colorado, symbolizing the town's deep-rooted cultural traditions.

ZIP codes for San Luis, CO (1)

ZIP code	City	County	Map
81152	San Luis	Costilla	View map

Demographics & statistics

1,187

Population

54.0

Median age

$29,625

Median household income

$24,163

Per capita income

$129,300

Median home value

$673

Median monthly rent

67.6%

Home ownership

21.7%

Poverty rate

7.9%

Unemployment

698

Housing units

18.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	193	16.3%
18 and over	994	83.7%
65 and over	311	26.2%
Median age	54.0 years

Race & ethnicity

White 48.6%

Hispanic or Latino 21.7%

Two or more races 19%

Other race 6.7%

American Indian / Alaska Native 2.8%

Black or African American 0.7%

Asian 0.5%

Group	Count	%
White	737	48.6%
Hispanic or Latino	329	21.7%
Two or more races	288	19%
Other race	101	6.7%
American Indian / Alaska Native	43	2.8%
Black or African American	10	0.7%
Asian	8	0.5%

Household income

Under $10k 11.4%

$10k–$15k 16.8%

$15k–$25k 8.6%

$25k–$35k 21.0%

$35k–$50k 7.4%

$50k–$75k 15.1%

$75k–$100k 8.4%

$100k–$150k 7.6%

$200k+ 3.7%

Range	% of households
Under $10k	11.4%
$10k–$15k	16.8%
$15k–$25k	8.6%
$25k–$35k	21.0%
$35k–$50k	7.4%
$50k–$75k	15.1%
$75k–$100k	8.4%
$100k–$150k	7.6%
$200k+	3.7%
Median income	$29,625

Housing

Home values

Under $50k 20.7%

$50k–$100k 11.8%

$100k–$150k 33.9%

$150k–$200k 8.3%

$200k–$300k 14.9%

$300k–$500k 5.2%

$500k–$1M 5.2%

Housing overview

Metric	Value
Median home value	$129,300
Median rent / month	$673
Owner occupied	67.6%
Renter occupied	32.4%
Vacant	38.4%
Single-family detached	68.2%
Large apartment buildings	0.2%
Mobile homes	22.7%
Median rooms	5.0
Avg household size (owned)	2.32

Year built

Era	%
2020 or later	0.0%
2010–2019	2.2%
2000–2009	9.6%
1990–1999	12.4%
1980–1989	17.3%
1970–1979	19.8%
1960–1969	0.7%
1950–1959	2.4%
1940–1949	10.8%
1939 or earlier	24.8%

Bedrooms

Size	% of units
No bedroom (studio)	3.7%
1 bedroom	11.5%
2 bedrooms	32.9%
3 bedrooms	37.3%
4 bedrooms	13.1%
5+ bedrooms	1.6%

Vehicles per household

Vehicles	% of households
No vehicle	6.7%
1 vehicle	25.3%
2 vehicles	48.6%
3 or more	19.4%

Heating fuel

Fuel type	%
Utility gas	6.7%
Electricity	16.4%
Propane / LP gas	33.5%
Fuel oil	10.6%
Wood	26.3%

Households & families

Household type	Count	%
Married-couple family	198	36.9%
Cohabiting couple	25	4.7%
Male householder, no spouse	182	33.9%
Female householder, no spouse	132	24.6%
Households with children under 18	88	16.4%
Households with seniors (65+)	240	44.7%
Average household size	2.18

Marital status

Status	Male	Female
Never married	33.5%	14.3%
Married	37.5%	52.3%
Separated	3.4%	5.6%
Widowed	5.7%	16.4%
Divorced	19.9%	11.4%

Education

Less than 9th grade 5.7%

Some HS, no diploma 7.5%

HS graduate 34.4%

Some college, no degree 28.5%

Associate's degree 5.7%

Bachelor's degree 15.1%

Graduate / professional 3.1%

Metric	%
HS diploma or higher	86.8%
Bachelor's or higher	18.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	10	5.7%
Kindergarten	10	5.7%
Elementary school	92	52.9%
High school	34	19.5%
College / grad school	28	16.1%

Employment

Industry of employment

Education & healthcare 33.3%

Public administration 13.3%

Arts, food & hospitality 11.9%

Retail trade 9.9%

Professional & management 8.5%

Construction 7.9%

Transportation & utilities 4.5%

Other services 3.1%

Manufacturing 2.5%

Agriculture & mining 1.8%

Information 1.8%

Wholesale trade 1.6%

Occupation

Category	%
Management, business & arts	35.7%
Service	13.5%
Sales & office	30.6%
Natural resources & construction	9.2%
Production & transportation	11.0%

Employment type

Type	%
Private sector	52.8%
Government	43.1%
Self-employed	4.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	55.1%
Carpool	30.0%
Public transit	0.0%
Walk	11.4%
Other means	0.0%
Avg commute (minutes)	28.3

Poverty

All people 21.7%

Under 18 years 32.6%

18 and over 19.6%

Married-couple families 8.1%

Female-led households 17.6%

Income support

Source	% of households
Social Security	51.6%
Retirement income	26.4%
Supplemental Security	14.0%
Cash public assistance	6.5%
Food stamps / SNAP	35.9%

Health indicators

Condition	%
High blood pressure	38.9%
High cholesterol	37.8%
Heart disease	10.1%
Stroke	5.1%
Asthma	10.1%
Arthritis	30.7%
Kidney disease	5.4%
Pulmonary disease	8.9%
Cancer	6.9%

Behavior / access	%
Binge drinking	12.4%
No physical activity	35.2%
Less than 7 hrs sleep	30.2%
Fair or poor health	27.5%
Poor mental health	13.7%
Poor physical health	16.7%
No health insurance	29.3%
Visited doctor (checkup)	72.2%
Visited dentist	48.1%
Cholesterol screening	90.5%
Teeth loss	18.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	78	7.8%

Disability	%
Any disability	27.7%
Under 18	0.0%
18–64 years	23.3%
65 and over	54.3%

Health insurance coverage

Type	%
Private insurance	39.1%
Public insurance	69.3%
Uninsured under 19	0.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,134	95.5%
Spanish	145	12.8%
Other Indo-European	138	12.2%
Asian & Pacific Islander	0	0.0%
Other languages	7	0.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,141	96.1%
Born in same state	1,141	96.1%
Born in different state	810	68.2%
Foreign born	0	0.0%
Naturalized citizen	46	3.9%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	93	7.8%
French	69	5.8%
Arab	57	4.8%

Ancestry	Count	%
German	8	0.7%
Polish	6	0.5%
English	5	0.4%

Technology access

Metric	% of households
Computer access	45.2%
Internet access	87.2%

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

Frequently asked questions

What ZIP codes does San Luis, CO have?

San Luis, CO has one ZIP code: 81152. Each ZIP code serves a distinct delivery area within the city and surrounding region.