Lamar County, Texas Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 70th-largest in Texas
The population of Lamar County, Texas is 50,421 as of the 2023 American Community Survey, making it the 70th-largest county in Texas. The median household income is $61,122, the median home value is $175,500, and the median age is 40.0.
The population of Lamar County has grown 2.9% since 2010 (49,822 → 51,249), a +0.20% annualized rate.
50,421
Population
+0.20%
Annual growth
56
People / sq mi
$61,122
Median Income
$175,500
Median Home Value
Lamar County covers 907 sq mi of land at 55.6 people per square mile.
About Lamar County, TX
Lamar County is a county in Texas with a population of 50,421. It ranks #70 among counties in Texas by population. The median age is 40.0, in line with the national median. The population is 49.1% male and 50.9% female.
The median household income in Lamar County is $61,122, below the US median of $74,580. 15.1% of residents live below the federal poverty level. Home values sit at a median of $175,500, with monthly rent averaging $897. The homeownership rate of 65.8% is close to the national rate of 64.8%.
Educational attainment in Lamar County reflects 20.6% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 19.5 minutes each way.
Lamar County Population History (2010-2024)
The county of Lamar County had a population of 49,822 in 2010 and 51,249 in 2024, a 2.9% growth over 14 years. The peak was 51,249 in 2024. Average annual growth rate: 0.20%.
51,249
Population (2024)
49,822
Population (2010)
51,249
Peak (2024)
0.20%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 49,822 |
| 2011 | 49,869 |
| 2012 | 49,673 |
| 2013 | 49,113 |
| 2014 | 49,435 |
| 2015 | 49,399 |
| 2016 | 49,555 |
| 2017 | 49,610 |
| 2018 | 49,672 |
| 2019 | 49,781 |
| 2020 | 50,135 |
| 2021 | 50,357 |
| 2022 | 50,513 |
| 2023 | 51,093 |
| 2024 | 51,249 |
Race & Ethnicity
| White | 77.1% |
| Black or African American | 12.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.7% |
| Two or More Races | 0.0% |
Age & Sex
40.0
Median Age
50.9%
Female
49.1%
Male
19.3%
Age 65+
Age Distribution
Children (under 15): 20.2% · Seniors (65+): 19.3%
Income & Poverty
| Median household income | $61,122$-15,170 vs state |
| Mean household income | $78,269 |
| Per-capita income | $31,430 |
| Poverty rate | 15.1%+4.6% vs state |
| Unemployment rate | 2.4% |
| Employment-to-population | 58.3% |
Top Industries by Employment
The largest employment sector in Lamar County is professional & business services, accounting for 26.1% of workers.
How residents commute
0.0%
Drive alone
2.9%
Carpool
78.7%
Public transit
7.5%
Work from home
19.5 min
Avg commute
Housing
$175,500$-84,900 vs state
Median home value
$897
Median rent
65.8%
Homeownership rate
22,744
Total housing units
88.2%
Occupied
11.8%
Vacant
34.2%
Renter-occupied
Social & access
81.0%
With health insurance
91.7%
With broadband internet
20.6%
Foreign-born
6.9%
Veterans (18+)
18.1%
With a disability
91.2%
Speak language other than English at home
Education
88.0%
High School+
20.6%
Bachelor's+
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County rankings
Frequently Asked Questions
Lamar County, Texas has a population of 50,421 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 70th-largest county in Texas. Population density is 56 people per square mile.
The population of Lamar County has grown 2.9% since 2010 (49,822 → 51,249), a +0.20% annualized rate.
The median household income in Lamar County, Texas is $61,122, with mean (average) household income of $78,269 and per-capita income of $31,430. 15.1% of residents live below the federal poverty level.
In Lamar County, the largest racial and ethnic groups are White (77.1%), Black or African American (12.4%), Hispanic or Latino (2.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Lamar County, Texas is 40.0 years. Residents are 50.9% female and 49.1% male.
The median home value in Lamar County is $175,500 and median monthly rent is $897. 65.8% of occupied housing units are owner-occupied. The county has 22,744 total housing units, 11.8% of which are vacant.
The largest employment sector in Lamar County, Texas is professional, scientific, and management services, employing 26.1% of workers. The unemployment rate is 2.4%.
Houston is among the largest cities associated with Lamar County, Texas, with a population of 2,300,419.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.