Zip code 81151: Sanford, Colorado

Q: What city is zip code 81151?

81151 is assigned to Sanford, Colorado. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 81151 in?

81151 is mostly in Costilla County, but it extends into 1 other county.

Q: What is the population of 81151?

About 1,716 people live in 81151, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 81151?

The median household income in 81151 is $43,417.

Q: What zip codes are near 81151?

The closest zip codes to 81151 are 81141, 81123, 81138, 81148, 81101.

Residential delivery areaCostilla CountyMountain Time

Population

1,716

Median household income

$43K

U.S. $81K

Median home value

$189K

U.S. $333K

Median rent

$1,074/mo

U.S. $1,413

Median age

40.6

U.S. 38.9

Land area

293 sq mi

6 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 81151

81151 is a rural zip code in Sanford, Colorado (Costilla County), covering 293 sq mi of land. About 1,716 people live here, or 6 per square mile. The median resident is 40.6 years old, compared with 38.9 nationally.

The median household earns $43,417 a year, about 54% of the national median of $80,734. 14.7% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $188,500, or 4.3 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 76% of occupied homes are lived in by their owners, and renters pay a median of $1,074 a month.

29% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 30 minutes each way, and 20% of workers work from home. The most common jobs among working residents are in office and administrative support; construction and repair; and education. 16% of them are self-employed (U.S.: 10%). 35% of households speak a language other than English at home, most often Spanish.

How 81151 compares

Sorted from highest to lowest national percentile

Government workers25.4%
95th
U.S. 14.5% · CO 14.5%72nd of 483 in CO
Self-employed workers16.4%
94th
U.S. 10% · CO 11.3%162nd of 483 in CO
Residents 65 and older21.9%
83rd
U.S. 17.2% · CO 15.6%157th of 484 in CO
Uninsured rate12.4%
81st
WeaknessU.S. 8.4% · CO 7.7%84th of 481 in CO
Unemployment rate7.1%
80th
WeaknessU.S. 5.2% · CO 4.6%61st of 483 in CO
Residents under 1825.8%
80th
U.S. 22% · CO 21%94th of 484 in CO
Work from home19.6%
76th
U.S. 15.1% · CO 21%190th of 483 in CO
Average commute30 min
74th
U.S. 26.4 min · CO 25.2 min110th of 450 in CO
Homeownership rate76.3%
70th
U.S. 65.2% · CO 66.2%219th of 482 in CO
Housing vacancy9.6%
69th
U.S. 10.1% · CO 8.3%210th of 482 in CO
Poverty rate14.7%
68th
U.S. 12.5% · CO 9.4%108th of 482 in CO
Median age40.6
62nd
U.S. 38.9 · CO 37.7247th of 484 in CO
Veterans6.4%
58th
U.S. 6.2% · CO 7.5%283rd of 484 in CO
Diversity index52.2
56th
U.S. 61.4 · CO 52.5109th of 484 in CO
Healthcare workers9.4%
49th
U.S. 9.7% · CO 8.8%161st of 483 in CO
Tech workers2.8%
48th
U.S. 3.8% · CO 5.2%220th of 483 in CO
Bachelor's degree or higher29.3%
45th
U.S. 35.7% · CO 45.7%297th of 484 in CO
Rent-burdened renters45.7%
31st
U.S. 51.1% · CO 52.9%283rd of 447 in CO
Income inequality (Gini)0.409
27th
U.S. 0.483 · CO 0.459280th of 480 in CO
Median gross rent$1,074
26th
U.S. $1,413 · CO $1,761293rd of 400 in CO
Median home value$188,500
19th
U.S. $332,700 · CO $539,400418th of 461 in CO
Median earnings per worker$38,264
17th
WeaknessU.S. $49,666 · CO $56,473406th of 478 in CO
Foreign-born residents2.6%
16th
U.S. 14.1% · CO 9.8%333rd of 484 in CO
Broadband access86%
15th
WeaknessU.S. 91% · CO 93.5%377th of 482 in CO
Per capita income$25,893
10th
WeaknessU.S. $44,673 · CO $52,636450th of 483 in CO
Median household income$43,417
5th
WeaknessU.S. $80,734 · CO $95,470442nd of 460 in CO
Population1,716
3rd
U.S. 334,922,499 · CO 5,862,189290th of 484 in CO
Population density6/sq mi
1st
U.S. 95/sq mi · CO 57/sq mi345th of 484 in CO

Measure	81151	Costilla	CO	U.S.	National percentile	Rank in CO
Government workers	25.4%	29.8%	14.5%	14.5%	95th	72nd of 483
Self-employed workers	16.4%	23.9%	11.3%	10%	94th	162nd of 483
Residents 65 and older	21.9%	28.5%	15.6%	17.2%	83rd	157th of 484
Uninsured rateWeakness	12.4%	8.5%	7.7%	8.4%	81st	84th of 481
Unemployment rateWeakness	7.1%	3.5%	4.6%	5.2%	80th	61st of 483
Residents under 18	25.8%	18.6%	21%	22%	80th	94th of 484
Work from home	19.6%	16.1%	21%	15.1%	76th	190th of 483
Average commute	30 min	26.1 min	25.2 min	26.4 min	74th	110th of 450
Homeownership rate	76.3%	79%	66.2%	65.2%	70th	219th of 482
Housing vacancy	9.6%	32.1%	8.3%	10.1%	69th	210th of 482
Poverty rate	14.7%	21%	9.4%	12.5%	68th	108th of 482
Median age	40.6	50.5	37.7	38.9	62nd	247th of 484
Veterans	6.4%	12.2%	7.5%	6.2%	58th	283rd of 484
Diversity index	52.2	55.9	52.5	61.4	56th	109th of 484
Healthcare workers	9.4%	11.9%	8.8%	9.7%	49th	161st of 483
Tech workers	2.8%	1%	5.2%	3.8%	48th	220th of 483
Bachelor's degree or higher	29.3%	24.9%	45.7%	35.7%	45th	297th of 484
Rent-burdened renters	45.7%	50.2%	52.9%	51.1%	31st	283rd of 447
Income inequality (Gini)	0.409	0.502	0.459	0.483	27th	280th of 480
Median gross rent	$1,074	$927	$1,761	$1,413	26th	293rd of 400
Median home value	$188,500	$184,700	$539,400	$332,700	19th	418th of 461
Median earnings per workerWeakness	$38,264	$34,167	$56,473	$49,666	17th	406th of 478
Foreign-born residents	2.6%	5.7%	9.8%	14.1%	16th	333rd of 484
Broadband accessWeakness	86%	88.1%	93.5%	91%	15th	377th of 482
Per capita incomeWeakness	$25,893	$28,445	$52,636	$44,673	10th	450th of 483
Median household incomeWeakness	$43,417	$36,861	$95,470	$80,734	5th	442nd of 460
Population	1,716	3,607	5,862,189	334,922,499	3rd	290th of 484
Population density	6/sq mi	3/sq mi	57/sq mi	95/sq mi	1st	345th of 484

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

21%

5–17

18–24

10%

25–34

12%

35–44

45–54

13%

55–64

15%

65–74

75+

Median age

40.6

Under 18

25.8%

65 and over

21.9%

Race and ethnicity

White58%
Black0%
Hispanic38%
Asian1%
Native American1%
Pacific Islander0.5%
Other0%
Multiracial1%

Diversity index

52.2

U.S. 61.4

Foreign-born

2.6%

U.S. 14.1%

Born in state

69%

Language spoken at home (households)

English only

65%

Spanish

31%

Other Indo-European

Asian / Pacific

Other

Households

Households: 767
Average household size: 2.2
Family households: 60.6%
Married couples: 48.4%
Living alone: 39.1%
Veterans (of adults): 6.4%
Male / female: 46% / 54%

Income and poverty

Household income distribution

<$25k

26%

$25–50k

26%

$50–75k

18%

$75–100k

$100–150k

22%

$150–200k

$200k+

Median household income

81151

$43,417

Costilla Co.

$36,861

Colorado

$95,470

United States

$80,734

Per capita income

$25,893

U.S. $44,673

Poverty rate

14.7%

U.S. 12.5%

Households earning $150K+

U.S. 23%

Income inequality (Gini)

0.409

U.S. 0.483

Housing

Median home value

81151

$188,500

Costilla Co.

$184,700

Colorado

$539,400

United States

$332,700

Median gross rent

81151

$1,074

Costilla Co.

$927

Colorado

$1,761

United States

$1,413

Types of housing

Single-family

68%

2–4 units

0.8%

5–19 units

20+ units

Mobile home

23%

Boat, RV, van

Housing units: 848
Owner-occupied: 76.3%
Vacant: 9.6%
Median year built: 1983
Median rooms: 5.2
Renters paying 30%+ of income: 45.7%
Renters paying 50%+ of income: 33.3%
Home value to income: 4.3× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

66%

Carpooled

12%

Transit

Walked

Bicycle

Worked from home

20%

Other

0.5%

Commute time (one way)

<10 min

15%

10–19

20–29

33%

30–44

32%

45–59

60+

Average commute

30 min

U.S. 26.4 min

Unemployment

7.1%

U.S. 5.2%

In labor force

60.3%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Office and admin

23%

Construction and repair

17%

Education

15%

Healthcare

Management

Sales

Cleaning and personal care

Engineering and science

Food service

Computer and math

Legal and social services

Business and finance

Production

Transportation and moving

Farming, fishing and forestry

Arts, media and sports

Police and fire

Industries

Health care and social assistance

27%

Education

13%

Transportation, warehousing and utilities

12%

Retail

Construction

Professional and technical services

Admin, support and management

Agriculture and mining

Restaurants and hotels

Public administration

Finance, insurance and real estate

Information

Other services

Wholesale

0.8%

Manufacturing

0.5%

Arts and recreation

0.1%

Median earnings per worker

$38,264

U.S. $49,666

Self-employed

16.4%

U.S. 10%

Government workers

25.4%

U.S. 14.5%

Nonprofit workers

3.1%

U.S. 8.8%

Median earnings by type of work

Type of work	81151	U.S.
Management, business, science and arts	$38,598	$74,888
Service	$7,656	$26,804
Sales and office	$39,762	$40,476
Construction and maintenance	$48,750	$49,199
Production and transportation	$32,188	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

22%

Some college

21%

Associate's

18%

Bachelor's

21%

Graduate

High school graduate or higher: 90.6%
Bachelor's degree or higher: 29.3%
Graduate or professional degree: 8.3%
Households with broadband: 86%
Cable, fiber or DSL: 55.7%
No internet access: 9.8%
Without health insurance: 12.4%
Limited-English households: 12.5%

Geography

City (USPS): Sanford
State: Colorado
County: Costilla County
Center point: 37.2391° N, 105.7116° W
Land area: 293 sq mi
Water area: 0.2 sq mi
Time zone: Mountain Time (UTC-7, UTC-6 in summer)
Zip type: Residential delivery area

81151 spans 2 counties

Costilla County57% of land
Conejos County43% of land

Zip codes near 81151

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
81141	Manassa, CO	11 mi	1,406	$59,539	$202,500
81123	Blanca, CO	14 mi	606	$36,487	$152,400
81138	Jaroso, CO	16 mi	17	—	—
81148	Romeo, CO	16 mi	387	$45,469	$123,800
81101	Alamosa, CO	18 mi	15,550	$54,844	$240,400
81152	San Luis, CO	19 mi	1,244	$31,875	$120,300
81102	Alamosa, CO · PO box	19 mi	—	—	—
81129	Conejos, CO	19 mi	118	—	—
81126	Chama, CO	21 mi	506	$52,870	$170,400
87524	Costilla, NM	21 mi	450	—	—
81124	Capulin, CO	22 mi	259	$88,793	$79,300
81140	La Jara, CO	25 mi	1,893	$46,781	$239,700

Zip codes like 81151 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 81151

What city is zip code 81151?

81151 is assigned to Sanford, Colorado. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 81151 in?

81151 is mostly in Costilla County, but it extends into 1 other county.

What is the population of 81151?

About 1,716 people live in 81151, according to the Census Bureau's American Community Survey.

What time zone is 81151 in?

81151 is in Mountain Time.

What is the median household income in 81151?

The median household income in 81151 is $43,417.

What zip codes are near 81151?

The closest zip codes to 81151 are 81141, 81123, 81138, 81148, 81101.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 81151, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.