Lamar County, Mississippi Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 11th-largest in Mississippi
The population of Lamar County, Mississippi is 65,081 as of the 2023 American Community Survey, making it the 11th-largest county in Mississippi. The median household income is $69,106, the median home value is $218,700, and the median age is 37.5.
The population of Lamar County has grown 18.9% since 2010 (56,109 → 66,734), a +1.25% annualized rate.
65,081
Population
+1.25%
Annual growth
131
People / sq mi
$69,106
Median Income
$218,700
Median Home Value
Lamar County covers 497 sq mi of land at 131.1 people per square mile.
About Lamar County, MS
Lamar County is a county in Mississippi with a population of 65,081. It ranks #11 among counties in Mississippi by population. The median age is 37.5, younger than the national median. The population is 47.9% male and 52.1% female.
The median household income in Lamar County is $69,106, below the US median of $74,580. 11.1% of residents live below the federal poverty level. Home values sit at a median of $218,700, with monthly rent averaging $1,061. The homeownership rate of 68.1% is higher than the national rate of 64.8%.
Educational attainment in Lamar County reflects 33.2% of adults 25 and older holding a bachelor's degree or higher, near the national average of 34.3%. Roughly 5.1% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 26.3 minutes each way.
Lamar County Population History (2010-2024)
The county of Lamar County had a population of 56,109 in 2010 and 66,734 in 2024, a 18.9% growth over 14 years. The peak was 66,734 in 2024. Average annual growth rate: 1.25%.
66,734
Population (2024)
56,109
Population (2010)
66,734
Peak (2024)
1.25%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 56,109 |
| 2011 | 57,390 |
| 2012 | 58,167 |
| 2013 | 59,209 |
| 2014 | 60,211 |
| 2015 | 61,034 |
| 2016 | 61,461 |
| 2017 | 61,649 |
| 2018 | 62,744 |
| 2019 | 63,447 |
| 2020 | 64,393 |
| 2021 | 65,420 |
| 2022 | 65,811 |
| 2023 | 66,207 |
| 2024 | 66,734 |
Race & Ethnicity
| White | 72.8% |
| Black or African American | 21.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Age & Sex
37.5
Median Age
52.1%
Female
47.9%
Male
14.7%
Age 65+
Age Distribution
Children (under 15): 20.2% · Seniors (65+): 14.7%
Income & Poverty
| Median household income | $69,106+$14,191 vs state |
| Mean household income | $97,646 |
| Per-capita income | $38,615 |
| Poverty rate | 11.1%-3.2% vs state |
| Unemployment rate | 3.2% |
| Employment-to-population | 59.1% |
Top Industries by Employment
The largest employment sector in Lamar County is professional & business services, accounting for 29.5% of workers.
How residents commute
0.2%
Drive alone
0.8%
Carpool
80.0%
Public transit
5.1%
Work from home
26.3 min
Avg commute
Housing
$218,700+$57,300 vs state
Median home value
$1,061
Median rent
68.1%
Homeownership rate
27,523
Total housing units
91.0%
Occupied
9.0%
Vacant
31.9%
Renter-occupied
Social & access
87.2%
With health insurance
96.5%
With broadband internet
27.3%
Foreign-born
7.4%
Veterans (18+)
15.1%
With a disability
96.1%
Speak language other than English at home
Education
91.4%
High School+
33.2%
Bachelor's+
Largest cities in Mississippi
Other counties in Mississippi
Part of Mississippi
Metro areas in Mississippi
County rankings
Frequently Asked Questions
Lamar County, Mississippi has a population of 65,081 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 11th-largest county in Mississippi. Population density is 131 people per square mile.
The population of Lamar County has grown 18.9% since 2010 (56,109 → 66,734), a +1.25% annualized rate.
The median household income in Lamar County, Mississippi is $69,106, with mean (average) household income of $97,646 and per-capita income of $38,615. 11.1% of residents live below the federal poverty level.
In Lamar County, the largest racial and ethnic groups are White (72.8%), Black or African American (21.6%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Lamar County, Mississippi is 37.5 years. Residents are 52.1% female and 47.9% male.
The median home value in Lamar County is $218,700 and median monthly rent is $1,061. 68.1% of occupied housing units are owner-occupied. The county has 27,523 total housing units, 9.0% of which are vacant.
The largest employment sector in Lamar County, Mississippi is professional, scientific, and management services, employing 29.5% of workers. The unemployment rate is 3.2%.
Jackson is among the largest cities associated with Lamar County, Mississippi, with a population of 149,827.
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Statewide data for Mississippi
Population, race, income, age, and trends across Mississippi
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.