Blanca ZIP Codes — Costilla County, CO

There is one unique ZIP code in Blanca, Colorado and it is 81123. Area code: 719.

ZIP codes

145.65

sq mi land

1.12

sq mi water

719

area code

Blanca, CO ZIP code map

About Blanca, CO

Blanca, Colorado, is a small, picturesque town located in Costilla County. Known for its stunning landscapes and proximity to the majestic Sangre de Cristo Mountains, it offers a unique blend of natural beauty and quiet community life. The town provides residents and visitors with a glimpse of the rich cultural heritage of Southern Colorado.

Location & geography

Blanca is situated in the south-central part of Colorado, approximately 30 miles from the larger town of Alamosa. The town covers a land area of 145.65 square miles, complemented by a water area of 1.12 square miles, contributing to its diverse natural scenery. The surrounding terrain is primarily mountainous, with ample opportunities for outdoor activities.

Community & economy

The community of Blanca is characterized by its warm and welcoming atmosphere, where residents take pride in their close-knit relationships. The local economy is often based on agriculture and tourism, with visitors drawn to the area for its breathtaking views and abundant recreational activities. Daily life in Blanca revolves around a relaxed pace, making it an ideal place for those seeking tranquility away from bustling city life.

Transportation

Blanca is accessible via Colorado State Highway 160, which connects the town to other nearby regions. The nearest airport is San Luis Valley Regional Airport, located about 34 miles to the northwest, providing regional air service. Public transit options are limited, so personal vehicles are the primary means of transportation in the area.

History

Founded in the late 19th century, Blanca has deep roots in the agricultural industry, which has shaped the community's development. Historically, the town has served as a key agricultural hub, supporting farming and ranching activities in the surrounding areas. Notable events include the establishment of local festivities that celebrate the town's heritage and its connection to the rich history of Costilla County.

Did you know?

One surprising fact about Blanca is that it is located near the Sand Dunes National Park, a popular destination for both locals and tourists. This proximity to such a striking natural park contrasts with the small-town vibe of Blanca, showcasing the area's diverse attractions.

ZIP codes for Blanca, CO (1)

ZIP code	City	County	Map
81123	Blanca	Costilla	View map

Demographics & statistics

729

Population

53.0

Median age

$34,444

Median household income

$20,100

Per capita income

$107,800

Median home value

$856

Median monthly rent

78.6%

Home ownership

20.4%

Poverty rate

6.9%

Unemployment

380

Housing units

23.0%

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	151	20.7%
18 and over	578	79.3%
65 and over	187	25.7%
Median age	53.0 years

Race & ethnicity

White 55.8%

Hispanic or Latino 16.8%

Two or more races 11.5%

Other race 7.9%

Asian 5.3%

Black or African American 2.6%

American Indian / Alaska Native 0.1%

Group	Count	%
White	489	55.8%
Hispanic or Latino	147	16.8%
Two or more races	101	11.5%
Other race	69	7.9%
Asian	46	5.3%
Black or African American	23	2.6%
American Indian / Alaska Native	1	0.1%

Household income

Under $10k 22.0%

$10k–$15k 5.4%

$15k–$25k 6.6%

$25k–$35k 19.0%

$35k–$50k 8.7%

$50k–$75k 18.1%

$75k–$100k 9.9%

$100k–$150k 9.0%

$150k–$200k 1.2%

Range	% of households
Under $10k	22.0%
$10k–$15k	5.4%
$15k–$25k	6.6%
$25k–$35k	19.0%
$35k–$50k	8.7%
$50k–$75k	18.1%
$75k–$100k	9.9%
$100k–$150k	9.0%
$150k–$200k	1.2%
Median income	$34,444

Housing

Home values

Under $50k 19.2%

$50k–$100k 25.7%

$100k–$150k 20.3%

$150k–$200k 9.2%

$200k–$300k 13.0%

$300k–$500k 12.6%

Housing overview

Metric	Value
Median home value	$107,800
Median rent / month	$856
Owner occupied	78.6%
Renter occupied	21.4%
Vacant	26.4%
Single-family detached	74.3%
Large apartment buildings	0.0%
Mobile homes	23.1%
Median rooms	4.9
Avg household size (owned)	1.95

Year built

Era	%
2020 or later	0.0%
2010–2019	6.9%
2000–2009	27.5%
1990–1999	17.1%
1980–1989	13.5%
1970–1979	19.1%
1960–1969	2.2%
1950–1959	1.3%
1940–1949	3.3%
1939 or earlier	9.1%

Bedrooms

Size	% of units
No bedroom (studio)	8.0%
1 bedroom	10.0%
2 bedrooms	26.4%
3 bedrooms	38.4%
4 bedrooms	14.9%
5+ bedrooms	2.4%

Vehicles per household

Vehicles	% of households
No vehicle	1.2%
1 vehicle	35.2%
2 vehicles	39.5%
3 or more	24.1%

Heating fuel

Fuel type	%
Utility gas	1.8%
Electricity	6.6%
Propane / LP gas	53.6%
Fuel oil	8.1%
Wood	22.9%

Households & families

Household type	Count	%
Married-couple family	142	42.8%
Cohabiting couple	19	5.7%
Male householder, no spouse	90	27.1%
Female householder, no spouse	81	24.4%
Households with children under 18	63	19.0%
Households with seniors (65+)	149	44.9%
Average household size	2.20

Marital status

Status	Male	Female
Never married	33.9%	31.3%
Married	47.6%	47.4%
Separated	0.3%	0.0%
Widowed	4.7%	6.9%
Divorced	13.5%	14.5%

Education

Less than 9th grade 7.8%

Some HS, no diploma 9.6%

HS graduate 31.2%

Some college, no degree 19.5%

Associate's degree 9.0%

Bachelor's degree 18.3%

Graduate / professional 4.7%

Metric	%
HS diploma or higher	82.7%
Bachelor's or higher	23.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	21	13.7%
Kindergarten	3	2.0%
Elementary school	52	34.0%
High school	67	43.8%
College / grad school	10	6.5%

Employment

Industry of employment

Education & healthcare 23.6%

Agriculture & mining 22.9%

Transportation & utilities 10.5%

Construction 8.9%

Wholesale trade 8.5%

Retail trade 7.0%

Public administration 7.0%

Manufacturing 3.1%

Finance & real estate 3.1%

Professional & management 3.1%

Arts, food & hospitality 2.3%

Occupation

Category	%
Management, business & arts	22.9%
Service	5.4%
Sales & office	15.9%
Natural resources & construction	30.2%
Production & transportation	25.6%

Employment type

Type	%
Private sector	62.8%
Government	22.9%
Self-employed	9.3%
Unpaid family workers	5.0%

Commute

Method	%
Drive alone	80.5%
Carpool	10.8%
Public transit	0.0%
Walk	7.9%
Other means	0.0%
Avg commute (minutes)	21.5

Poverty

All people 20.4%

Under 18 years 3.3%

18 and over 24.9%

Married-couple families 11.3%

Female-led households 27.3%

Income support

Source	% of households
Social Security	46.4%
Retirement income	30.4%
Supplemental Security	10.2%
Cash public assistance	1.8%
Food stamps / SNAP	21.1%

Health indicators

Condition	%
High blood pressure	35.9%
High cholesterol	35.4%
Heart disease	9.1%
Stroke	4.6%
Asthma	10.8%
Arthritis	29.6%
Kidney disease	4.4%
Pulmonary disease	9.7%
Cancer	6.9%

Behavior / access	%
Binge drinking	14.0%
No physical activity	29.5%
Less than 7 hrs sleep	30.3%
Fair or poor health	22.4%
Poor mental health	14.8%
Poor physical health	15.1%
No health insurance	22.4%
Visited doctor (checkup)	70.7%
Visited dentist	51.3%
Cholesterol screening	89.2%
Teeth loss	19.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	74	12.8%

Disability	%
Any disability	22.5%
Under 18	0.0%
18–64 years	19.4%
65 and over	47.1%

Health insurance coverage

Type	%
Private insurance	39.8%
Public insurance	61.7%
Uninsured under 19	5.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	679	93.1%
Spanish	70	10.3%
Other Indo-European	70	10.3%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	656	90.0%
Born in same state	649	89.0%
Born in different state	326	44.7%
Foreign born	7	1.0%
Naturalized citizen	73	10.0%
Not a US citizen	15	20.5%

Ancestry

Ancestry	Count	%
French	104	14.3%
Italian	46	6.3%
Arab	19	2.6%

Ancestry	Count	%
Irish	17	2.3%
Polish	10	1.4%

Technology access

Metric	% of households
Computer access	45.5%
Internet access	93.7%

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

Frequently asked questions

What ZIP codes does Blanca, CO have?

Blanca, CO has one ZIP code: 81123. Each ZIP code serves a distinct delivery area within the city and surrounding region.