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Colorado ZIP Codes
Rio Grande County
South Fork, CO
81154
81154 ZIP Code — South Fork, CO
Rio Grande County, Colorado
ZIP code 81154 is located in
South Fork ,
Colorado ,
within Rio Grande County .
It covers approximately 375.04 square miles and serves a population of
1,203 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 719 .
About ZIP code 81154
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $308,800. Owner-occupancy is high at 82%, well above the national average.
Median household income is $71,379. The poverty rate of 5% is below the national average. 51% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 39 minutes suggests many residents work outside the immediate area.
Educational attainment is near the national average, with 40% of residents holding a bachelor's degree or higher.
Notable community characteristics include a notable veteran presence at 12% of civilians, above the national average of 7%.
Overall, ZIP code 81154 reflects a community defined by a strong veteran community, high homeownership, and a significant Social Security-dependent population.
81154 ZIP code map
View map of 81154
Cities in ZIP code 81154
Below are the cities the US Postal Service accepts for ZIP code 81154. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
1,203
Population density
3 / sq mi
State FIPS
08
County FIPS
105
Geography
Land area
375.04 sq mi
Water area
0.20 sq mi
Latitude
37.6541
Longitude
-106.6026
Timezone
Mountain (MT)
Area code
719
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
42.9%
55.6%
32.5%
$50k – $100k
31.1%
26.0%
31.0%
$100k – $200k
17.3%
16.2%
26.9%
Over $200k
8.7%
2.2%
9.6%
Demographics & statistics
$71,379
Median household income
$308,800
Median home value
$1,005
Median monthly rent
39.9%
Bachelor's or higher
Age distribution
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
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
Income range
This ZIP
County avg
State avg
Under $50k
42.9%
55.6%
32.5%
$50k – $100k
31.1%
26.0%
31.0%
$100k – $200k
17.3%
16.2%
26.9%
Over $200k
8.7%
2.2%
9.6%
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
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
Some college, no degree
27.0%
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%
Professional & management
5.5%
Finance & real estate
4.3%
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% Work from home 16.9% Other means 7.5% Avg commute (minutes) 38.5
Poverty
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 % Obesity 26.5% High blood pressure 35.2% High cholesterol 37.9% Diabetes 11.8% 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 % Smoking 16.1% Binge drinking 14.6% No physical activity 21.5% Less than 7 hrs sleep 28.6% Depression 19.2% 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% No insurance 9.1% 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 about ZIP code 81154
What city is ZIP code 81154 in?
ZIP code 81154 is primarily assigned to South Fork, Colorado.
What county is ZIP code 81154 in?
ZIP code 81154 falls within Rio Grande County, Colorado.
Does ZIP code 81154 have an older population?
32% of residents in ZIP code 81154 are 65 or older, above the national average of ~17%.
Does ZIP code 81154 have a large retiree population?
51% of households in ZIP code 81154 receive Social Security income, suggesting a significant retiree or disability population.
Is ZIP code 81154 mostly owner-occupied?
82% of occupied units in ZIP code 81154 are owner-occupied, well above the national average.
Does ZIP code 81154 have a large veteran population?
12% of civilians in ZIP code 81154 are veterans, above the national average of ~7%.
What timezone is ZIP code 81154 in?
ZIP code 81154 observes the MST timezone.
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