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 defined demographically by education — 33.2% of adults hold a bachelor’s degree, below the national average. With 65,081 residents, Lamar County is a county in Mississippi. It ranks #11 among counties in Mississippi by population.
The typical household here earns about $69,106, below the US median of $78,538. Poverty runs at 11.1%, below the national 12.4%. Median home value is $218,700, with typical rent around $1,061.
Educational attainment is on the higher side for US counties — 33.2% of adults hold a four-year degree, below the national 35.0%. Most workers commute: only 5.1% work from home, below the national 14.0%, and the average commute runs about 26 minutes each way.
The education numbers are the throughline: a college-heavy population in Lamar County usually coincides with higher incomes and a workforce concentrated in professional and information industries.
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.
Lamar County, MS Climate
Lamar County, MS has an average annual temperature of 18.5°C (65°F) and receives about 1599 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
18.5°C
Avg Temp
1599
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 9° / 48° | 161 mm |
| February | 11° / 51° | 138 mm |
| March | 15° / 59° | 163 mm |
| April | 18° / 65° | 142 mm |
| May | 22° / 72° | 140 mm |
| June | 26° / 78° | 116 mm |
| July | 27° / 81° | 148 mm |
| August | 27° / 80° | 125 mm |
| September | 24° / 76° | 107 mm |
| October | 19° / 66° | 92 mm |
| November | 14° / 57° | 122 mm |
| December | 10° / 51° | 145 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Lamar County, MS
The most comfortable months to visit Lamar County, MS are typically October, May and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 33°C high). The coldest is January (near 3°C low). March is usually the wettest month.
Where to stay near Lamar County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.