South Fork ZIP Codes — Rio Grande County, CO

There is one unique ZIP code in South Fork, Colorado and it is 81154. Area code: 719.

ZIP codes

375.04

sq mi land

0.20

sq mi water

719

area code

South Fork, CO ZIP code map

About South Fork, CO

South Fork, Colorado, is a charming town nestled in the heart of the San Luis Valley. This picturesque locale is set against the backdrop of the majestic Sangre de Cristo Mountains. Known for its stunning natural beauty and outdoor recreational opportunities, South Fork invites visitors and residents alike to experience its captivating landscapes.

Location & geography

Located in Rio Grande County, South Fork is situated approximately 20 miles southeast of Del Norte and around 25 miles southwest of Monte Vista. The town is characterized by a diverse terrain, encompassing both mountainous regions and flat lands, spread over a land area of 375.04 square miles. Additionally, it features a minor water area of 0.20 square miles, contributing to its scenic charm.

Community & economy

The character of South Fork is deeply rooted in its rich outdoor lifestyle, attracting enthusiasts of fishing, hiking, and skiing. The local economy thrives primarily on tourism, supported by small businesses that cater to visitors seeking adventure in the nearby Rio Grande National Forest. Daily life in South Fork reflects a close-knit community atmosphere, where residents enjoy a slower pace and an appreciation for their natural surroundings.

Transportation

Transportation in South Fork is facilitated by the nearby U.S. Highway 160, providing vital access to larger cities and attractions. The closest major airport is San Luis Valley Regional Airport, located around 30 miles away in Alamosa. Local transit options may be limited, emphasizing the town's quiet, small-town appeal.

History

South Fork was originally established as a gold mining camp in the 1800s, which laid the foundation for its growth. Over the years, the town evolved with the development of essential industries such as timber and tourism, leading to its current status as a popular destination for outdoor adventurers. Notable events include its annual events, which celebrate the town's culture and heritage.

Did you know?

A little-known fact about South Fork is that it is home to the quaint South Fork of the Rio Grande River, which provides excellent fishing opportunities. Additionally, the town's elevation at 7,900 feet offers breathtaking views and a unique climate that is distinctively alpine.

ZIP codes for South Fork, CO (1)

ZIP code	City	County	Map
81154	South Fork	Rio Grande	View map

Demographics & statistics

1,203

Population

51.7

Median age

$71,379

Median household income

$41,018

Per capita income

$308,800

Median home value

$1,005

Median monthly rent

82.1%

Home ownership

5.2%

Poverty rate

3.1%

Unemployment

1,984

Housing units

39.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

100

45–54

55–59

60–64

145

65–74

139

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	218	18.1%
18 and over	985	81.9%
65 and over	385	32.0%
Median age	51.7 years

Race & ethnicity

White 90.1%

Hispanic or Latino 3.9%

Other race 3.2%

Two or more races 2%

Asian 0.6%

American Indian / Alaska Native 0.2%

Group	Count	%
White	1,128	90.1%
Hispanic or Latino	49	3.9%
Other race	40	3.2%
Two or more races	25	2%
Asian	8	0.6%
American Indian / Alaska Native	2	0.2%

Household income

Under $10k 2.2%

$10k–$15k 1.8%

$15k–$25k 4.2%

$25k–$35k 13.3%

$35k–$50k 12.4%

$50k–$75k 19.1%

$75k–$100k 12.2%

$100k–$150k 20.3%

$150k–$200k 11.4%

$200k+ 3.0%

Range	% of households
Under $10k	2.2%
$10k–$15k	1.8%
$15k–$25k	4.2%
$25k–$35k	13.3%
$35k–$50k	12.4%
$50k–$75k	19.1%
$75k–$100k	12.2%
$100k–$150k	20.3%
$150k–$200k	11.4%
$200k+	3.0%
Median income	$71,379

Housing

Home values

Under $50k 13.9%

$100k–$150k 0.7%

$150k–$200k 7.6%

$200k–$300k 26.2%

$300k–$500k 26.4%

$500k–$1M 19.1%

$1M+ 6.1%

Housing overview

Metric	Value
Median home value	$308,800
Median rent / month	$1,005
Owner occupied	82.1%
Renter occupied	17.9%
Vacant	76.0%
Single-family detached	81.7%
Large apartment buildings	0.3%
Mobile homes	9.5%
Median rooms	5.5
Avg household size (owned)	2.19

Year built

Era	%
2020 or later	0.3%
2010–2019	9.2%
2000–2009	21.7%
1990–1999	24.1%
1980–1989	15.0%
1970–1979	12.0%
1960–1969	10.2%
1950–1959	2.7%
1940–1949	0.2%
1939 or earlier	4.5%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	12.3%
2 bedrooms	26.9%
3 bedrooms	39.2%
4 bedrooms	13.4%
5+ bedrooms	6.2%

Vehicles per household

Vehicles	% of households
No vehicle	0.4%
1 vehicle	28.5%
2 vehicles	35.7%
3 or more	35.3%

Heating fuel

Fuel type	%
Utility gas	5.8%
Electricity	30.9%
Propane / LP gas	35.3%
Wood	21.7%
Solar	1.0%
No fuel used	2.2%

Households & families

Household type	Count	%
Married-couple family	385	77.3%
Cohabiting couple	26	5.2%
Male householder, no spouse	58	11.6%
Female householder, no spouse	29	5.8%
Households with children under 18	125	25.1%
Households with seniors (65+)	248	49.8%
Average household size	2.42

Marital status

Status	Male	Female
Never married	26.3%	10.6%
Married	66.1%	80.7%
Separated	3.1%	0.0%
Widowed	0.7%	3.1%
Divorced	3.8%	5.6%

Education

Less than 9th grade 0.7%

Some HS, no diploma 5.8%

HS graduate 20.7%

Some college, no degree 27.0%

Associate's degree 5.8%

Bachelor's degree 17.9%

Graduate / professional 22.0%

Metric	%
HS diploma or higher	93.4%
Bachelor's or higher	39.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	34	13.8%
Kindergarten	5	2.0%
Elementary school	79	32.1%
High school	81	32.9%
College / grad school	47	19.1%

Employment

Industry of employment

Education & healthcare 27.5%

Arts, food & hospitality 14.1%

Public administration 13.9%

Agriculture & mining 12.6%

Construction 9.0%

Professional & management 5.5%

Retail trade 5.3%

Finance & real estate 4.3%

Manufacturing 3.0%

Other services 2.3%

Information 1.9%

Transportation & utilities 0.6%

Occupation

Category	%
Management, business & arts	45.0%
Service	25.8%
Sales & office	9.8%
Natural resources & construction	16.4%
Production & transportation	3.0%

Employment type

Type	%
Private sector	54.6%
Government	29.2%
Self-employed	16.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	59.5%
Carpool	16.1%
Public transit	0.0%
Walk	0.0%
Other means	7.5%
Avg commute (minutes)	38.5

Poverty

All people 5.2%

Under 18 years 4.0%

18 and over 5.5%

Married-couple families 2.9%

Female-led households 0.0%

Income support

Source	% of households
Social Security	51.2%
Retirement income	41.8%
Supplemental Security	0.2%
Cash public assistance	0.2%
Food stamps / SNAP	5.0%

Health indicators

Condition	%
High blood pressure	35.2%
High cholesterol	37.9%
Heart disease	8.6%
Stroke	4.0%
Asthma	10.1%
Arthritis	31.8%
Kidney disease	3.7%
Pulmonary disease	8.8%
Cancer	9.1%

Behavior / access	%
Binge drinking	14.6%
No physical activity	21.5%
Less than 7 hrs sleep	28.6%
Fair or poor health	15.1%
Poor mental health	12.8%
Poor physical health	12.0%
No health insurance	12.7%
Visited doctor (checkup)	71.8%
Visited dentist	62.2%
Cholesterol screening	92.9%
Teeth loss	13.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	115	11.7%

Disability	%
Any disability	19.0%
Under 18	4.1%
18–64 years	23.7%
65 and over	20.3%

Health insurance coverage

Type	%
Private insurance	61.2%
Public insurance	49.0%
Uninsured under 19	25.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,153	95.8%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,194	99.3%
Born in same state	1,177	97.8%
Born in different state	377	31.3%
Foreign born	17	1.4%
Naturalized citizen	9	0.7%
Not a US citizen	3	33.3%

Ancestry

Ancestry	Count	%
Italian	266	22.1%
French	168	14%
English	37	3.1%
Arab	25	2.1%

Ancestry	Count	%
Irish	6	0.5%
Polish	3	0.2%
German	1	0.1%

Technology access

Metric	% of households
Computer access	41.4%
Internet access	97.4%

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

Frequently asked questions

What ZIP codes does South Fork, CO have?

South Fork, CO has one ZIP code: 81154. Each ZIP code serves a distinct delivery area within the city and surrounding region.