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

Total population
6,778
-2.2% year-over-year change
Median household income
$53,925/yr
2.9% year-over-year change
Housing units
3,380
-1.3% year-over-year change

South Union population

How many people live in South Union

South Union is home to 6,778 residents, according to the most recent Census data. Gender-wise, 46.2% of South Union locals are male, and 53.8% are female.

Total population
6,778
-2.2% year-over-year change
Gender ratio
Male
46.2%
3,129
Female
53.8%
3,649
Value Percent YoY change
Male 3,129 46.2% -0.8%
Female 3,649 53.8% -3.5%
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 Union is 44, with the population distributed as follows: about 15.8% are children under 15, then 11.4% are in the 15 to 24 age group. Adults between 25 and 44 make up 26.2% of the population, while another 24.6% fall into the 45 to 64 bracket. Finally, around 22% are 65 or older.

Median age
43.5
Age breakdown
Under 15
15.8%
15 to 24
11.4%
25 to 44
26.2%
45 to 64
24.6%
Over 65
22%
Value Percent YoY change
Under 15 1,074 15.8% -1.9%
15 to 24 773 11.4% -5.6%
25 to 44 1,775 26.2% -2.0%
45 to 64 1,665 24.6% -0.9%
Over 65 1,491 22% -2.5%
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 Union, 98.2% of the population are US-born citizens, while 0.9% have gained naturalized citizenship. At the same time, 0.9% of residents are non-citizens. As for race, 88.3% of locals are Caucasian, 5.7% are African American and 0.7% have Asian roots. There’s also a share of 4.7% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.2%
Non-U.S.-born citizens
0.9%
Non-citizens
0.9%
Value Percent YoY change
U.S.-born citizens 6,657 98.2% -2.1%
Non-U.S.-born citizens 62 0.9% -6.1%
Non-citizens 58 0.9% -10.8%
Racial breakdown
White
88.3%
Black or African American
5.7%
American Indian and Alaska Native
0%
Asian
0.7%
Native Hawaiian and other Pacific Islander
0.1%
Two or more races
4.7%
Other
0.5%
Value Percent
White 5,984 88.3%
Black or African American 385 5.7%
American Indian and Alaska Native 1 0%
Asian 45 0.7%
Native Hawaiian and other Pacific Islander 9 0.1%
Two or more races 319 4.7%
Other 35 0.5%

Households in South Union

A peek inside South Union households

South Union has 3,078 households, with an average of 2 members in each. Of these, 55.3% are families, while the remaining 44.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
3,078
-0.6% year-over-year change
Average people per household
2
Non-family households
1,376
Family households
1,702
Value Percent YoY change
Non-family households 1,376 44.7% 1.5%
Family households 1,702 55.3% -2.1%
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 Union

The housing landscape of South Union

South Union's housing consists of 3,380 units, with 67.2% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 3% 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 10.2% of the housing landscape.

Housing units
3,380
-1.3% year-over-year change
Housing types
Value Percent
1 unit, detached 2,273 67.2%
1 unit, attached 101 3%
2 units 236 7%
3 or 4 units 147 4.4%
5 to 9 units 66 2%
10 to 19 units 38 1.1%
20 to 49 units 76 2.2%
50 or more units 94 2.8%
Mobile home 346 10.2%
Boat, RV, van, etc. 4 0.1%
Homes built since 2020
7
75.0% year-over-year change

The age of buildings in South Union

In South Union, the median construction year is 1966. About 27.8% of homes were built before the 1940s, with another 8.3% going up by 1949. Most development happened in the second half of the 20th century. Then, 6.1% of homes were added from 2000 to 2009, 3% between 2010 and 2019, and 0.2% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 941 27.8% -6.4%
Built between 1940 and 1949 280 8.3% -0.7%
Built between 1950 and 1959 482 14.3% 4.1%
Built between 1960 and 1969 316 9.4% -0.6%
Built between 1970 and 1979 505 15% -4.0%
Built between 1980 and 1989 212 6.3% -5.4%
Built between 1990 and 1999 328 9.7% 8.2%
Built between 2000 and 2009 205 6.1% -5.1%
Built between 2010 and 2019 103 3% 21.2%
Built in 2020 or later 7 0.2% 75.0%
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 Union occupancy rates

Out of the 3,078 occupied housing units in South Union, 67.9% are owner-occupied, while 32.1% are lived in by tenants. Meanwhile, 8.9% of all homes on the local market sit vacant.

Occupied housing units
3,078
-0.6% year-over-year change
Occupancy breakdown
Renter occupied
987
Owner occupied
2,091
Value Percent YoY
change
Renter occupied 987 32.1% 1.9%
Owner occupied 2,091 67.9% -1.7%
Unoccupied housing units
8.9%
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 Union housing costs

Housing costs in South Union come to a median of $746 per month, while tenants specifically pay a median gross rent of $934.

Median housing costs per month
$746/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 Union
$934/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 Union

South Union education at a glance

About 50.1% of the population in South Union went to high school, while 16.2% pursued college studies. Another 10.8% earned an associate degree and 13.4% hold a bachelor’s. Meanwhile, 7.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 121 2.2% 7.1%
High school diploma 2,762 50.1% -1.4%
College diploma 892 16.2% -2.1%
Associate degree 596 10.8% -1.2%
Bachelor's degree 740 13.4% -2.0%
Graduate degree 400 7.3% -6.8%
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 Union

How much people earn in South Union

The average annual household income in South Union was $72,550 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -7% change from the previous year. At the same time, the median income stood at $53,925, reflecting a +2.9% shift over the same period.

Average household income in South Union
$72,550/year
-7.0% year-over-year change
Median household income in South Union
$53,925/year
2.9% year-over-year change

South Union income by age

In South Union, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $90,250. Those with someone between 45 and 64 in charge, often well established professionally, earn $62,985 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $42,981, while those led by someone over 65, many of whom may be retired, have about $38,594 in earnings. Overall, 83.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $42,981 19.1%
25 - 44 $90,250 20.2%
45 - 64 $62,985 -0.4%
Over 65 $38,594 -12.2%
Above poverty level
5,449
Below poverty level
1,053
Value Percent YoY
change
Above poverty level 5,449 83.8% -2.4%
Below poverty level 1,053 16.2% -1.7%

Employment in South Union

Workforce and job types in South Union

72% of the working population are employed in professional or administrative positions, while 28% are in hands-on or service-based jobs. Also, 7.3% run their own businesses, 69.3% are employed by private companies, and 11.3% work in the public sector.

Workforce demographics

White collar
2,270
Blue collar
885
Value Percent YoY change
White collar 2,270 72% -3.9%
Blue collar 885 28% 5.9%
Employer type
Self employees
7.3%
Private companies
69.3%
Governmental workers
11.3%
Not for profit companies
12.1%
Value Percent YoY change
Self employees 231 7.3% 3.1%
Private companies 2,187 69.3% -1.8%
Governmental workers 355 11.3% -6.1%
Not for profit companies 381 12.1% 3.2%

Transportation in South Union

How people get around in South Union

In South Union, the average commute time is 4 minutes. Commuting methods vary: 96.9% of residents travel by personal vehicle and 2.5% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
4 min
-63.6% year-over-year change
Means of transportation
Value Percent YoY change
Car 2,695 96.9% -2.2%
Bus or trolleybus 18 0.6% -30.8%
Walk 69 2.5% 56.8%
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 Union by zipcode?

Zipcode Population Number of households Median income Average income
15484 792 235 $98,579 $103,788
15401 29,942 13,892 $53,925 $71,407
15445 2,314 1,314 $47,955 $71,161

Explore more communities

FAQs about South Union demographics 

What is the total population of South Union?

South Union has a total population of 6,778 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 -2.2% compared to a year ago.

What is the gender ratio in South Union?

The gender ratio in South Union is as follows:
  • 46.2% males (3,129 residents)
  • 53.8% females (3,649 residents)

What is the median age in South Union?

The median age in South Union is 43.5.

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

The age distribution in South Union is as follows:
  • Under 15: 15.8% (1,074 residents)
  • Ages 15-24: 11.4% (773 residents)
  • Ages 25-44: 26.2% (1,775 residents)
  • Ages 45-64: 24.6% (1,665 residents)
  • Over 65: 22% (1,491 residents)

What is the racial and ethnic makeup of South Union?

The racial and ethnic makeup of South Union is as follows:
  • White: 88.3% (5,984 residents)
  • Black or African American: 5.7% (385 residents)
  • American Indian and Alaska Native: 0% (1 residents)
  • Asian: 0.7% (45 residents)
  • Native Hawaiian and Other Pacific Islander: 0.1% (9 residents)
  • Two or More Races: 4.7% (319 residents)
  • Other: 0.5% (35 residents)

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

U.S.-born citizens represent 98.2% of the population in South Union.

How many housing units are there in South Union?

There are 3,380 housing units in South Union, reflecting a -1.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

South Union has a total of 3,078 households, with an average of 2 people in each.

What is the median household income in South Union?

South Union has a median household income of $53,925, representing a +2.9% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for South Union?

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

Job types:
  • White-collar workers: 72% (2,270 residents)
  • Blue-collar workers: 28% (885 residents)

Places of employment:
  • Self-employed: 7.3% (231 residents)
  • Private companies: 69.3% (2,187 residents)
  • Governmental workers: 11.3% (355 residents)
  • Not-for-profit companies: 12.1% (381 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