Lamar County, Mississippi Demographics 2026
Lamar County, Mississippi has a population of 65,713, the 11th most populous county in Mississippi. The median household income is $70,909 and the median home value is $224,700. The poverty rate is 14.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Lamar County Quick Facts
How Lamar County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 65,081 | 65,713 | +1.0% |
| Median household income | $69,106 | $70,909 | +2.6% |
| Median home value | $218,700 | $224,700 | +2.7% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 56 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Lamar County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| West Hattiesburg | 6,715 | $39,366 | 38.5% | $213,700 |
| Oak Grove | 2,098 | $82,411 | 8.3% | $221,700 |
| Purvis | 1,914 | $45,667 | 22.8% | $168,100 |
| Arnold Line | 1,859 | $53,750 | 16.0% | $157,900 |
| Sumrall | 1,674 | $70,382 | 4.4% | $206,800 |
| Lumberton | 1,320 | $38,147 | 35.7% | $86,200 |
| Baxterville | 423 | $45,839 | 44.6% | $9,999 |
Explore Mississippi Rankings
Population Overview
Lamar County is located in Mississippi with a total population of 65,713. It is the 11th most populous county out of 82 in Mississippi. The county encompasses 7 Census-designated places.
Age Demographics
The median age in Lamar County is 37.7 years. This is 2% lower than the state median of 38.6 years.
Economy, Income & Housing
The median household income in Lamar County is $70,909. This is 26% higher than the state median of $56,447. It is also 12% lower than the national median of $80,734. The poverty rate stands at 14.7%. This is 22% lower than the state poverty rate of 18.9%. The unemployment rate is 4.8%. This is 16% lower than the state rate of 5.8%. The median home value is $224,700. Housing costs are 32% higher than the state median of $169,800. The home-value-to-income ratio is 3.2x. 69.5% of occupied housing units are owner-occupied.
Race & Ethnicity
The largest racial or ethnic group in Lamar County is White (non-Hispanic), making up 70.6% of the population. Black or African American residents account for 21.7%.
Education
34.5% of residents aged 25 and older hold a bachelor's degree or higher. This places Lamar County in the top 10% of all counties in the state for educational attainment. This is 37% higher than the state rate of 25.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.0%.
Data Sources & Methodology
All figures for Lamar County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Mississippi and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Lamar County, Mississippi?
Lamar County has a population of 65,713, making it the 11th most populous county in Mississippi.
What is the median income in Lamar County?
The median household income in Lamar County is $70,909 with a poverty rate of 14.7%.
How many cities are in Lamar County, Mississippi?
Lamar County contains 7 Census-designated places.