South Saint Louis, Saint Louis, MO demographics:
population, income, and more

Total population
147,138
-0.5% year-over-year change
Median household income
$68,764/yr
-1.9% year-over-year change
Housing units
83,100
0.6% year-over-year change

South Saint Louis population

How many people live in South Saint Louis

South Saint Louis is home to 147,138 residents, according to the most recent Census data. Gender-wise, 49.9% of South Saint Louis locals are male, and 50.1% are female.

Total population
147,138
-0.5% year-over-year change
Gender ratio
Male
49.9%
73,418
Female
50.1%
73,720
Value Percent YoY change
Male 73,418 49.9% 0.2%
Female 73,720 50.1% -1.2%
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 Saint Louis is 36, with the population distributed as follows: about 16.8% are children under 15, then 8.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 37.5% of the population, while another 23% fall into the 45 to 64 bracket. Finally, around 13.9% are 65 or older.

Median age
36.3
Age breakdown
Under 15
16.8%
15 to 24
8.8%
25 to 44
37.5%
45 to 64
23%
Over 65
13.9%
Value Percent YoY change
Under 15 24,753 16.8% 0.7%
15 to 24 12,984 8.8% -5.1%
25 to 44 55,144 37.5% 0.5%
45 to 64 33,826 23% -3.8%
Over 65 20,430 13.9% 4.3%
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 Saint Louis, 91.6% of the population are US-born citizens, while 4.2% have gained naturalized citizenship. At the same time, 4.1% of residents are non-citizens. As for race, 59% of locals are Caucasian, 27.1% are African American and 2.9% have Asian roots. There’s also a share of 7.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
91.6%
Non-U.S.-born citizens
4.2%
Non-citizens
4.1%
Value Percent YoY change
U.S.-born citizens 134,842 91.6% -0.9%
Non-U.S.-born citizens 6,255 4.2% 6.5%
Non-citizens 6,040 4.1% 2.3%
Racial breakdown
White
59%
Black or African American
27.1%
American Indian and Alaska Native
0.3%
Asian
2.9%
Native Hawaiian and other Pacific Islander
0%
Two or more races
7.8%
Other
2.9%
Value Percent
White 86,746 59%
Black or African American 39,900 27.1%
American Indian and Alaska Native 455 0.3%
Asian 4,309 2.9%
Native Hawaiian and other Pacific Islander 18 0%
Two or more races 11,499 7.8%
Other 4,210 2.9%

Households in South Saint Louis

A peek inside South Saint Louis households

South Saint Louis has 73,454 households, with an average of 2 members in each. Of these, 43.8% are families, while the remaining 56.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
73,454
1.4% year-over-year change
Average people per household
2
Non-family households
41,255
Family households
32,199
Value Percent YoY change
Non-family households 41,255 56.2% 1.7%
Family households 32,199 43.8% 1.0%
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 Saint Louis

The housing landscape of South Saint Louis

South Saint Louis's housing consists of 83,100 units, with 51.6% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 4.1% 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 0.3% of the housing landscape.

Housing units
83,100
0.6% year-over-year change
Housing types
Value Percent
1 unit, detached 42,879 51.6%
1 unit, attached 3,402 4.1%
2 units 12,019 14.5%
3 or 4 units 14,670 17.6%
5 to 9 units 3,236 3.9%
10 to 19 units 1,995 2.4%
20 to 49 units 1,729 2.1%
50 or more units 2,826 3.4%
Mobile home 268 0.3%
Boat, RV, van, etc. 76 0.1%
Homes built since 2020
183
67.9% year-over-year change

The age of buildings in South Saint Louis

In South Saint Louis, the median construction year is 1938. About 62.8% of homes were built before the 1940s, with another 8.6% going up by 1949. Most development happened in the second half of the 20th century. Then, 2.1% of homes were added from 2000 to 2009, 1.9% 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 52,143 62.8% -0.9%
Built between 1940 and 1949 7,128 8.6% -3.8%
Built between 1950 and 1959 9,760 11.8% 8.7%
Built between 1960 and 1969 4,118 5% 2.9%
Built between 1970 and 1979 3,177 3.8% 2.4%
Built between 1980 and 1989 1,692 2% -4.2%
Built between 1990 and 1999 1,516 1.8% -6.5%
Built between 2000 and 2009 1,766 2.1% 5.1%
Built between 2010 and 2019 1,616 1.9% 21.5%
Built in 2020 or later 183 0.2% 67.9%
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 Saint Louis occupancy rates

Out of the 73,454 occupied housing units in South Saint Louis, 52.4% are owner-occupied, while 47.6% are lived in by tenants. Meanwhile, 11.6% of all homes on the local market sit vacant.

Occupied housing units
73,454
1.4% year-over-year change
Occupancy breakdown
Renter occupied
34,990
Owner occupied
38,464
Value Percent YoY
change
Renter occupied 34,990 47.6% 2.4%
Owner occupied 38,464 52.4% 0.5%
Unoccupied housing units
11.6%
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 Saint Louis housing costs

Housing costs in South Saint Louis come to a median of $1,090 per month, while tenants specifically pay a median gross rent of $972.

Median housing costs per month
$1,090/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 Saint Louis
$972/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 Saint Louis

South Saint Louis education at a glance

About 29.6% of the population in South Saint Louis went to high school, while 19.8% pursued college studies. Another 6.3% earned an associate degree and 24.3% hold a bachelor’s. Meanwhile, 17.1% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 3,398 2.9% -8.4%
High school diploma 34,981 29.6% -1.8%
College diploma 23,352 19.8% -5.0%
Associate degree 7,420 6.3% 2.0%
Bachelor's degree 28,738 24.3% 3.0%
Graduate degree 20,225 17.1% 1.7%
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 Saint Louis

How much people earn in South Saint Louis

The average annual household income in South Saint Louis was $86,666 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.4% change from the previous year. At the same time, the median income stood at $68,764, reflecting a -1.9% shift over the same period.

Average household income in South Saint Louis
$86,666/year
4.4% year-over-year change
Median household income in South Saint Louis
$68,764/year
-1.9% year-over-year change

South Saint Louis income by age

In South Saint Louis, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $74,908. Those with someone between 45 and 64 in charge, often well established professionally, earn $59,677 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $41,688, while those led by someone over 65, many of whom may be retired, have about $42,215 in earnings. Overall, 83.9% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $41,688 -8.5%
25 - 44 $74,908 -3.4%
45 - 64 $59,677 -7.3%
Over 65 $42,215 5.5%
Above poverty level
120,605
Below poverty level
23,131
Value Percent YoY
change
Above poverty level 120,605 83.9% -1.6%
Below poverty level 23,131 16.1% 5.3%

Employment in South Saint Louis

Workforce and job types in South Saint Louis

83.8% of the working population are employed in professional or administrative positions, while 16.2% are in hands-on or service-based jobs. Also, 8.7% run their own businesses, 64.5% are employed by private companies, and 11.2% work in the public sector.

Workforce demographics

White collar
69,613
Blue collar
13,454
Value Percent YoY change
White collar 69,613 83.8% -0.5%
Blue collar 13,454 16.2% 1.8%
Employer type
Self employees
8.7%
Private companies
64.5%
Governmental workers
11.2%
Not for profit companies
15.6%
Value Percent YoY change
Self employees 7,262 8.7% 8.3%
Private companies 53,575 64.5% -0.6%
Governmental workers 9,305 11.2% 4.5%
Not for profit companies 12,925 15.6% -5.6%

Transportation in South Saint Louis

How people get around in South Saint Louis

In South Saint Louis, the average commute time is 56 minutes. Commuting methods vary: 91.4% of residents travel by personal vehicle and 2.7% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
56 min
-21.1% year-over-year change
Means of transportation
Value Percent YoY change
Car 60,773 91.4% -3.5%
Taxicab 494 0.7% 101.6%
Bus or trolleybus 2,573 3.9% 15.5%
Railroad 16 0% -20.0%
Motorcycle 84 0.1% -10.6%
Bicycle 759 1.1% 6.3%
Walk 1,815 2.7% 3.8%
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 Saint Louis by zipcode?

Zipcode Population Number of households Median income Average income
63139 21,631 11,501 $75,757 $97,876
63104 19,007 9,888 $68,764 $114,267
63109 25,236 14,080 $69,938 $91,676
63110 17,645 9,156 $81,655 $112,597
63111 18,851 8,959 $47,039 $60,016
63116 42,170 19,900 $61,433 $82,492
63118 25,913 12,138 $57,762 $75,453

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FAQs about South Saint Louis demographics 

What is the total population of South Saint Louis?

South Saint Louis has a total population of 147,138 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 -0.5% compared to a year ago.

What is the gender ratio in South Saint Louis?

The gender ratio in South Saint Louis is as follows:
  • 49.9% males (73,418 residents)
  • 50.1% females (73,720 residents)

What is the median age in South Saint Louis?

The median age in South Saint Louis is 36.3.

What is the age distribution of the population in South Saint Louis?

The age distribution in South Saint Louis is as follows:
  • Under 15: 16.8% (24,753 residents)
  • Ages 15-24: 8.8% (12,984 residents)
  • Ages 25-44: 37.5% (55,144 residents)
  • Ages 45-64: 23% (33,826 residents)
  • Over 65: 13.9% (20,430 residents)

What is the racial and ethnic makeup of South Saint Louis?

The racial and ethnic makeup of South Saint Louis is as follows:
  • White: 59% (86,746 residents)
  • Black or African American: 27.1% (39,900 residents)
  • American Indian and Alaska Native: 0.3% (455 residents)
  • Asian: 2.9% (4,309 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (18 residents)
  • Two or More Races: 7.8% (11,499 residents)
  • Other: 2.9% (4,210 residents)

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

U.S.-born citizens represent 91.6% of the population in South Saint Louis.

How many housing units are there in South Saint Louis?

There are 83,100 housing units in South Saint Louis, reflecting a +0.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

South Saint Louis has a total of 73,454 households, with an average of 2 people in each.

What is the median household income in South Saint Louis?

South Saint Louis has a median household income of $68,764, representing a -1.9% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for South Saint Louis?

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

Job types:
  • White-collar workers: 83.8% (69,613 residents)
  • Blue-collar workers: 16.2% (13,454 residents)

Places of employment:
  • Self-employed: 8.7% (7,262 residents)
  • Private companies: 64.5% (53,575 residents)
  • Governmental workers: 11.2% (9,305 residents)
  • Not-for-profit companies: 15.6% (12,925 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