South Fayette, PA demographics:
population, income, and more

Total population
14,541
0.4% year-over-year change
Median household income
$102,328/yr
-2.6% year-over-year change
Housing units
6,693
1.0% year-over-year change

South Fayette population

How many people live in South Fayette

South Fayette is home to 14,541 residents, according to the most recent Census data. Gender-wise, 49% of South Fayette locals are male, and 51% are female.

Total population
14,541
0.4% year-over-year change
Gender ratio
Male
49%
7,125
Female
51%
7,416
Value Percent YoY change
Male 7,125 49% 1.7%
Female 7,416 51% -0.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in South Fayette is 37, with the population distributed as follows: about 17.7% are children under 15, then 9% are in the 15 to 24 age group. Adults between 25 and 44 make up 27.3% of the population, while another 25.5% fall into the 45 to 64 bracket. Finally, around 20.5% are 65 or older.

Median age
37
Age breakdown
Under 15
17.7%
15 to 24
9%
25 to 44
27.3%
45 to 64
25.5%
Over 65
20.5%
Value Percent YoY change
Under 15 2,570 17.7% -4.4%
15 to 24 1,313 9% 6.8%
25 to 44 3,964 27.3% 2.1%
45 to 64 3,713 25.5% 1.1%
Over 65 2,981 20.5% -0.8%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In South Fayette, 94.1% of the population are US-born citizens, while 2.9% have gained naturalized citizenship. At the same time, 3% of residents are non-citizens. As for race, 84.3% of locals are Caucasian, 3.7% are African American and 5.2% have Asian roots. There’s also a share of 5.6% that includes residents with two or more races.

Citizenship
U.S.-born citizens
94.1%
Non-U.S.-born citizens
2.9%
Non-citizens
3%
Value Percent YoY change
U.S.-born citizens 13,685 94.1% 1.0%
Non-U.S.-born citizens 417 2.9% -4.1%
Non-citizens 439 3% -12.2%
Racial breakdown
White
84.3%
Black or African American
3.7%
American Indian and Alaska Native
0%
Asian
5.2%
Native Hawaiian and other Pacific Islander
0%
Two or more races
5.6%
Other
1.2%
Value Percent
White 12,251 84.3%
Black or African American 533 3.7%
American Indian and Alaska Native 2 0%
Asian 751 5.2%
Native Hawaiian and other Pacific Islander 1 0%
Two or more races 821 5.6%
Other 181 1.2%

Households in South Fayette

A peek inside South Fayette households

South Fayette has 6,217 households, with an average of 2 members in each. Of these, 61.3% are families, while the remaining 38.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
6,217
0.1% year-over-year change
Average people per household
2
Non-family households
2,406
Family households
3,811
Value Percent YoY change
Non-family households 2,406 38.7% -0.3%
Family households 3,811 61.3% 0.4%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in South Fayette

The housing landscape of South Fayette

South Fayette's housing consists of 6,693 units, with 59.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 18.8% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 1% of the housing landscape.

Housing units
6,693
1.0% year-over-year change
Housing types
Value Percent
1 unit, detached 3,997 59.7%
1 unit, attached 1,257 18.8%
2 units 182 2.7%
3 or 4 units 142 2.1%
5 to 9 units 196 2.9%
10 to 19 units 312 4.7%
20 to 49 units 168 2.5%
50 or more units 372 5.6%
Mobile home 68 1%
Homes built since 2020
132
26.9% year-over-year change

The age of buildings in South Fayette

In South Fayette, the median construction year is 1970. About 17.9% of homes were built before the 1940s, with another 4.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 11.2% of homes were added from 2000 to 2009, 10.7% between 2010 and 2019, and 2% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,199 17.9% 8.7%
Built between 1940 and 1949 318 4.8% -25.7%
Built between 1950 and 1959 778 11.6% 5.4%
Built between 1960 and 1969 554 8.3% 21.0%
Built between 1970 and 1979 798 11.9% -2.1%
Built between 1980 and 1989 555 8.3% -4.2%
Built between 1990 and 1999 890 13.3% -8.8%
Built between 2000 and 2009 751 11.2% 7.6%
Built between 2010 and 2019 718 10.7% -1.1%
Built in 2020 or later 132 2% 26.9%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

South Fayette occupancy rates

Out of the 6,217 occupied housing units in South Fayette, 73.8% are owner-occupied, while 26.2% are lived in by tenants. Meanwhile, 7.1% of all homes on the local market sit vacant.

Occupied housing units
6,217
0.1% year-over-year change
Occupancy breakdown
Renter occupied
1,629
Owner occupied
4,588
Value Percent YoY
change
Renter occupied 1,629 26.2% 2.8%
Owner occupied 4,588 73.8% -0.8%
Unoccupied housing units
7.1%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

South Fayette housing costs

Housing costs in South Fayette come to a median of $1,362 per month, while tenants specifically pay a median gross rent of $1,100.

Median housing costs per month
$1,362/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in South Fayette
$1,100/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in South Fayette

South Fayette education at a glance

About 26.5% of the population in South Fayette went to high school, while 16.5% pursued college studies. Another 9% earned an associate degree and 29.5% hold a bachelor’s. Meanwhile, 17.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 94 0.8% -17.5%
High school diploma 3,024 26.5% -5.4%
College diploma 1,886 16.5% 4.1%
Associate degree 1,023 9% 4.6%
Bachelor's degree 3,369 29.5% 7.3%
Graduate degree 2,010 17.6% -2.6%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in South Fayette

How much people earn in South Fayette

The average annual household income in South Fayette was $124,621 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.9% change from the previous year. At the same time, the median income stood at $102,328, reflecting a -2.6% shift over the same period.

Average household income in South Fayette
$124,621/year
2.9% year-over-year change
Median household income in South Fayette
$102,328/year
-2.6% year-over-year change

South Fayette income by age

In South Fayette, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $130,952. Those with someone between 45 and 64 in charge, often well established professionally, earn $125,637 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $47,105, while those led by someone over 65, many of whom may be retired, have about $56,212 in earnings. Overall, 93.5% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $47,105 -30.9%
25 - 44 $130,952 8.8%
45 - 64 $125,637 4.6%
Over 65 $56,212 3.0%
Above poverty level
13,221
Below poverty level
914
Value Percent YoY
change
Above poverty level 13,221 93.5% 0.0%
Below poverty level 914 6.5% 7.2%

Employment in South Fayette

Workforce and job types in South Fayette

86.3% of the working population are employed in professional or administrative positions, while 13.7% are in hands-on or service-based jobs. Also, 8.3% run their own businesses, 70% are employed by private companies, and 9.6% work in the public sector.

Workforce demographics

White collar
6,529
Blue collar
1,038
Value Percent YoY change
White collar 6,529 86.3% 4.5%
Blue collar 1,038 13.7% -5.0%
Employer type
Self employees
8.3%
Private companies
70%
Governmental workers
9.6%
Not for profit companies
12%
Value Percent YoY change
Self employees 631 8.3% 1.8%
Private companies 5,298 70% 3.4%
Governmental workers 728 9.6% 1.0%
Not for profit companies 909 12% 3.5%

Transportation in South Fayette

How people get around in South Fayette

In South Fayette, the average commute time is 9 minutes. Commuting methods vary: 97.4% of residents travel by personal vehicle and 1.2% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
9 min
-72.7% year-over-year change
Means of transportation
Value Percent YoY change
Car 5,690 97.4% -0.3%
Taxicab 1 0% N/A
Bus or trolleybus 78 1.3% -18.8%
Motorcycle 5 0.1% -16.7%
Walk 69 1.2% 35.3%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in South Fayette by zipcode?

Zipcode Population Number of households Median income Average income
15082 275 75 $113,750 $169,483
15057 16,583 6,141 $120,821 $139,724
15017 17,782 7,987 $86,937 $116,300
15064 360 171 $0 $67,946
15071 12,663 5,064 $102,328 $129,637
15031 382 145 $35,404 $50,737

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FAQs about South Fayette demographics 

What is the total population of South Fayette?

South Fayette has a total population of 14,541 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +0.4% compared to a year ago.

What is the gender ratio in South Fayette?

The gender ratio in South Fayette is as follows:
  • 49% males (7,125 residents)
  • 51% females (7,416 residents)

What is the median age in South Fayette?

The median age in South Fayette is 37.

What is the age distribution of the population in South Fayette?

The age distribution in South Fayette is as follows:
  • Under 15: 17.7% (2,570 residents)
  • Ages 15-24: 9% (1,313 residents)
  • Ages 25-44: 27.3% (3,964 residents)
  • Ages 45-64: 25.5% (3,713 residents)
  • Over 65: 20.5% (2,981 residents)

What is the racial and ethnic makeup of South Fayette?

The racial and ethnic makeup of South Fayette is as follows:
  • White: 84.3% (12,251 residents)
  • Black or African American: 3.7% (533 residents)
  • American Indian and Alaska Native: 0% (2 residents)
  • Asian: 5.2% (751 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (1 residents)
  • Two or More Races: 5.6% (821 residents)
  • Other: 1.2% (181 residents)

What percentage of the population in South Fayette are U.S.-born citizens?

U.S.-born citizens represent 94.1% of the population in South Fayette.

How many housing units are there in South Fayette?

There are 6,693 housing units in South Fayette, reflecting a +1.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in South Fayette and what is the average household size?

South Fayette has a total of 6,217 households, with an average of 2 people in each.

What is the median household income in South Fayette?

South Fayette has a median household income of $102,328, representing a -2.6% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for South Fayette?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 86.3% (6,529 residents)
  • Blue-collar workers: 13.7% (1,038 residents)

Places of employment:
  • Self-employed: 8.3% (631 residents)
  • Private companies: 70% (5,298 residents)
  • Governmental workers: 9.6% (728 residents)
  • Not-for-profit companies: 12% (909 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025