South Lamar, Austin, TX demographics:
population, income, and more

Total population
7,138
0.4% year-over-year change
Median household income
$106,897/yr
10.0% year-over-year change
Housing units
4,225
0.1% year-over-year change

South Lamar population

How many people live in South Lamar

South Lamar is home to 7,138 residents, according to the most recent Census data. Gender-wise, 51.6% of South Lamar locals are male, and 48.4% are female.

Total population
7,138
0.4% year-over-year change
Gender ratio
Male
51.6%
3,685
Female
48.4%
3,453
Value Percent YoY change
Male 3,685 51.6% 1.0%
Female 3,453 48.4% -0.2%
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 Lamar is 34, with the population distributed as follows: about 10.6% are children under 15, then 12.1% are in the 15 to 24 age group. Adults between 25 and 44 make up 48.6% of the population, while another 20.9% fall into the 45 to 64 bracket. Finally, around 7.9% are 65 or older.

Median age
34.5
Age breakdown
Under 15
10.6%
15 to 24
12.1%
25 to 44
48.6%
45 to 64
20.9%
Over 65
7.9%
Value Percent YoY change
Under 15 754 10.6% 3.6%
15 to 24 861 12.1% -7.9%
25 to 44 3,471 48.6% 2.9%
45 to 64 1,490 20.9% -0.1%
Over 65 562 7.9% -3.3%
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 Lamar, 85.6% of the population are US-born citizens, while 7.6% have gained naturalized citizenship. At the same time, 6.8% of residents are non-citizens. As for race, 70% of locals are Caucasian, 3.2% are African American and 4.6% have Asian roots. There’s also a share of 17% that includes residents with two or more races.

Citizenship
U.S.-born citizens
85.6%
Non-U.S.-born citizens
7.6%
Non-citizens
6.8%
Value Percent YoY change
U.S.-born citizens 6,114 85.6% -0.2%
Non-U.S.-born citizens 541 7.6% 4.0%
Non-citizens 483 6.8% 3.9%
Racial breakdown
White
70%
Black or African American
3.2%
American Indian and Alaska Native
0.5%
Asian
4.6%
Native Hawaiian and other Pacific Islander
0%
Two or more races
17%
Other
4.7%
Value Percent
White 4,996 70%
Black or African American 231 3.2%
American Indian and Alaska Native 34 0.5%
Asian 325 4.6%
Native Hawaiian and other Pacific Islander 1 0%
Two or more races 1,213 17%
Other 338 4.7%

Households in South Lamar

A peek inside South Lamar households

South Lamar has 3,935 households, with an average of 2 members in each. Of these, 32.6% are families, while the remaining 67.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
3,935
0.6% year-over-year change
Average people per household
2
Non-family households
2,654
Family households
1,281
Value Percent YoY change
Non-family households 2,654 67.4% -0.8%
Family households 1,281 32.6% 3.7%
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 Lamar

The housing landscape of South Lamar

South Lamar's housing consists of 4,225 units, with 30.2% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 8.3% 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 0.5% of the housing landscape.

Housing units
4,225
0.1% year-over-year change
Housing types
Value Percent
1 unit, detached 1,275 30.2%
1 unit, attached 351 8.3%
2 units 162 3.8%
3 or 4 units 279 6.6%
5 to 9 units 272 6.4%
10 to 19 units 427 10.1%
20 to 49 units 393 9.3%
50 or more units 1,044 24.7%
Mobile home 20 0.5%
Boat, RV, van, etc. 2 0%
Homes built since 2020
124
103.3% year-over-year change

The age of buildings in South Lamar

In South Lamar, the median construction year is 1989. About 5% of homes were built before the 1940s, with another 3.2% going up by 1949. Most development happened in the second half of the 20th century. Then, 12.7% of homes were added from 2000 to 2009, 25.8% between 2010 and 2019, and 2.9% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 210 5% -1.4%
Built between 1940 and 1949 134 3.2% 0.0%
Built between 1950 and 1959 218 5.2% -0.5%
Built between 1960 and 1969 364 8.6% -13.1%
Built between 1970 and 1979 634 15% 1.0%
Built between 1980 and 1989 583 13.8% 0.3%
Built between 1990 and 1999 330 7.8% -2.1%
Built between 2000 and 2009 536 12.7% 3.3%
Built between 2010 and 2019 1,091 25.8% -1.4%
Built in 2020 or later 124 2.9% 103.3%
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 Lamar occupancy rates

Out of the 3,935 occupied housing units in South Lamar, 33% are owner-occupied, while 67% are lived in by tenants. Meanwhile, 6.9% of all homes on the local market sit vacant.

Occupied housing units
3,935
0.6% year-over-year change
Occupancy breakdown
Renter occupied
2,637
Owner occupied
1,298
Value Percent YoY
change
Renter occupied 2,637 67% 0.9%
Owner occupied 1,298 33% 0.0%
Unoccupied housing units
6.9%
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 Lamar housing costs

Housing costs in South Lamar come to a median of $1,956 per month, while tenants specifically pay a median gross rent of $1,801.

Median housing costs per month
$1,956/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 Lamar
$1,801/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 Lamar

South Lamar education at a glance

About 11.9% of the population in South Lamar went to high school, while 14.4% pursued college studies. Another 3.9% earned an associate degree and 43.6% hold a bachelor’s. Meanwhile, 22.9% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 210 3.4% 9.4%
High school diploma 741 11.9% -1.2%
College diploma 900 14.4% 0.8%
Associate degree 244 3.9% 3.0%
Bachelor's degree 2,724 43.6% 0.2%
Graduate degree 1,428 22.9% 0.1%
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 Lamar

How much people earn in South Lamar

The average annual household income in South Lamar was $164,250 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +7.7% change from the previous year. At the same time, the median income stood at $106,897, reflecting a +10% shift over the same period.

Average household income in South Lamar
$164,250/year
7.7% year-over-year change
Median household income in South Lamar
$106,897/year
10.0% year-over-year change

South Lamar income by age

In South Lamar, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $122,694. Those with someone between 45 and 64 in charge, often well established professionally, earn $130,278 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $61,940, while those led by someone over 65, many of whom may be retired, have about $51,090 in earnings. Overall, 88.6% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $61,940 7.2%
25 - 44 $122,694 8.6%
45 - 64 $130,278 12.7%
Over 65 $51,090 4.4%
Above poverty level
6,037
Below poverty level
774
Value Percent YoY
change
Above poverty level 6,037 88.6% 0.4%
Below poverty level 774 11.4% -0.4%

Employment in South Lamar

Workforce and job types in South Lamar

93.3% of the working population are employed in professional or administrative positions, while 6.7% are in hands-on or service-based jobs. Also, 14.6% run their own businesses, 68% are employed by private companies, and 11.3% work in the public sector.

Workforce demographics

White collar
4,555
Blue collar
326
Value Percent YoY change
White collar 4,555 93.3% -1.9%
Blue collar 326 6.7% 15.2%
Employer type
Self employees
14.6%
Private companies
68%
Governmental workers
11.3%
Not for profit companies
6.1%
Value Percent YoY change
Self employees 711 14.6% 0.8%
Private companies 3,320 68% -0.7%
Governmental workers 553 11.3% 2.2%
Not for profit companies 297 6.1% -11.9%

Transportation in South Lamar

How people get around in South Lamar

Commuting methods vary: 86.5% of residents travel by personal vehicle and 5.6% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 2,462 86.5% -9.3%
Taxicab 7 0.2% -12.5%
Bus or trolleybus 107 3.8% -8.6%
Railroad 1 0% 0.0%
Motorcycle 29 1% 222.2%
Bicycle 81 2.8% 20.9%
Walk 159 5.6% 16.1%
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 Lamar by zipcode?

Zipcode Population Number of households Median income Average income
78704 50,688 27,940 $106,897 $164,250

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FAQs about South Lamar demographics 

What is the total population of South Lamar?

South Lamar has a total population of 7,138 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 +0.4% compared to a year ago.

What is the gender ratio in South Lamar?

The gender ratio in South Lamar is as follows:
  • 51.6% males (3,685 residents)
  • 48.4% females (3,453 residents)

What is the median age in South Lamar?

The median age in South Lamar is 34.5.

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

The age distribution in South Lamar is as follows:
  • Under 15: 10.6% (754 residents)
  • Ages 15-24: 12.1% (861 residents)
  • Ages 25-44: 48.6% (3,471 residents)
  • Ages 45-64: 20.9% (1,490 residents)
  • Over 65: 7.9% (562 residents)

What is the racial and ethnic makeup of South Lamar?

The racial and ethnic makeup of South Lamar is as follows:
  • White: 70% (4,996 residents)
  • Black or African American: 3.2% (231 residents)
  • American Indian and Alaska Native: 0.5% (34 residents)
  • Asian: 4.6% (325 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (1 residents)
  • Two or More Races: 17% (1,213 residents)
  • Other: 4.7% (338 residents)

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

U.S.-born citizens represent 85.6% of the population in South Lamar.

How many housing units are there in South Lamar?

There are 4,225 housing units in South Lamar, reflecting a +0.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

South Lamar has a total of 3,935 households, with an average of 2 people in each.

What is the median household income in South Lamar?

South Lamar has a median household income of $106,897, representing a +10.0% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for South Lamar?

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

Job types:
  • White-collar workers: 93.3% (4,555 residents)
  • Blue-collar workers: 6.7% (326 residents)

Places of employment:
  • Self-employed: 14.6% (711 residents)
  • Private companies: 68% (3,320 residents)
  • Governmental workers: 11.3% (553 residents)
  • Not-for-profit companies: 6.1% (297 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