County · Mississippi

Lamar County, Mississippi

Lamar County, Mississippi. Lamar County had 67,403 residents in 2025 by the Census Bureau's estimate, up 5.0% since 2020, while Mississippi shrank 0.2%. It holds 8 places (4 cities, villages and boroughs and 4 census-designated) and 17 census tracts. GEOID 28073.

Lamar County is one of the 3 counties of the Hattiesburg, MS metropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

67,403

Census Bureau estimate (no margin published)
2020 Census count: 64,222 · ACS 2020-2024: 65,713

Median household income

$70,909

±$4,616 (90% margin)
Mississippi: $56,447

Median home value

$224,700

±$10,031 (90% margin)
Mississippi: $169,800

Median gross rent

$1,126

±$64 (90% margin)
Mississippi: $954

How many people live in Lamar County, and is it growing?

The 2020 Census counted 64,222 residents in Lamar County. The Census Bureau estimates 67,403 for July 1, 2025, up 5.0% since 2020, while Mississippi shrank 0.2%. The 2020-2024 American Community Survey puts the population at 65,713 over 497 square miles of land.

July 2020→2021 +1,048 (65,439)
2021→2022 +373 (65,812)
2022→2023 +405 (66,217)
2023→2024 +697 (66,914)
2024→2025 +489 (67,403)

Lamar County in Mississippi. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Lamar County	Mississippi	Change since 2015-2019
Total population	65,713	2,946,779	+3,744
Households	25,381±379	1,145,431	+3,265
Average household size	2.58±0.04	2.49	−0.21
Housing units	27,685±53	1,341,114	+3,116

Lamar County's population since 2000

From 39,070 in 2000 to 67,403 in 2025: up 72.5%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.

2000 Census 39,070
2005 (estimate) 46,684
2010 Census 55,658
2015 (estimate) 61,034
2020 Census 64,222
2025 (estimate) 67,403

Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov

What cities and towns are in Lamar County?

Lamar County holds 8 places: 4 cities, villages and boroughs (incorporated places) and 4 census-designated places. The largest is Hattiesburg with 48,802 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Lamar County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.

Hattiesburg	city	48,730	48,619±32	$46,342	$165,900	28.3%	14%
West Hattiesburg	CDP	6,006	6,715±1,041	$39,366	$213,700	38.5%	100%
Arnold Line	CDP	2,333	1,859±413	$53,750	$157,900	16.0%	100%
Purvis	city	1,909	1,914±421	$45,667	$168,100	22.8%	100%
Sumrall	town	1,765	1,674±444	$70,382	$206,800	4.4%	100%
Oak GroveGEOID 2853080	CDP	1,758	2,098±652	$82,411	$221,700	8.3%	100%
Lumberton	city	1,617	1,320±320	$38,147	$86,200	35.7%	99%
BaxtervilleGEOID 2803940	CDP	267	423±423	$45,839	$10,000 or less	44.6%	100%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov

Who lives in Lamar County?

The median resident of Lamar County is 37.7 years old; 24.3% are under 18 and 15.3% are 65 or older. The largest group is non-Hispanic white residents at 70.6%, then non-Hispanic Black residents at 21.7%. 2.5% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
Measure	Lamar County	Mississippi	Change since 2015-2019
Median age	37.7±0.3	38.6	+1.8
Under 18 years	24.3%	23.3%	–
65 years and over	15.3%±0.1 pts	17.2%	–
Hispanic or Latino (any race)	3.7%	3.7%	+1.0 pts
White alone, not Hispanic	70.6%±0.3 pts	55.2%	−3.5 pts
Black or African American alone, not Hispanic	21.7%±0.6 pts	36.3%	+1.6 pts
Asian alone, not Hispanic	0.9%±0.3 pts	1.0%	no clear change
American Indian and Alaska Native alone, not Hispanic	0.1%±0.1 pts	0.4%	–
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0.0%±0.1 pts	0.0%	–
Two or more races, not Hispanic	2.6%±0.6 pts	3.0%	–
Some other race alone, not Hispanic	0.4%±0.3 pts	0.3%	–
Born outside the United States	2.5%±0.6 pts	2.4%	no clear change
Speak a language other than English at home (age 5+)	3.9%±0.7 pts	4.3%	–
Civilian veterans (age 18+)	6.9%±1.0 pts	6.8%	–
With a disability	15.9%±1.2 pts	17.8%	–
No health insurance coverage	11.1%±1.6 pts	11.0%	no clear change
High school graduate or higher (age 25+)	92.0%±1.3 pts	87.1%	–
Bachelor's degree or higher (age 25+)	34.5%±2.6 pts	25.1%	no clear change
Graduate or professional degree (age 25+)	13.0%±1.4 pts	9.9%	–
Moved from another state in the past year	1.9%±0.6 pts	2.1%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Lamar County earn?

Half of Lamar County's 25,381 households earn less than $70,909 a year (±$4,616), against $56,447 in Mississippi. In 2015-2019 it was $74,245 in 2024 dollars; the margins of error cannot tell the two periods apart. 14.7% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Lamar County	Mississippi	Change since 2015-2019
Median household income	$70,909±$4,616	$56,447	no clear change
Mean household income	$96,987±$7,772	$78,922	–
Per capita income	$39,058±$3,166	$31,549	no clear change
People below the poverty line	14.7%±1.9 pts	18.9%	−3.6 pts
Children under 18 below the poverty line	18.8%±3.4 pts	26.0%	no clear change
Households receiving SNAP	9.6%±2.0 pts	13.5%	–
Households with a broadband subscription	88.6%±2.2 pts	84.1%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Lamar County?

Owners occupy 69.5% of Lamar County's occupied homes and renters 30.5%. The median owner-occupied home is valued at $224,700 by its owner (±$10,031). The median renter pays $1,126 a month including utilities, and 35.6% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure	Lamar County	Mississippi	Change since 2015-2019
Median home value (owner-occupied)	$224,700±$10,031	$169,800	no clear change
Median gross rent	$1,126±$64	$954	no clear change
Renters paying 35% or more of income on rent	35.6%±6.2 pts	42.1%	no clear change
Median monthly owner costs, with a mortgage	$1,507±$75	$1,394	–
Owner-occupied homes	69.5%±2.0 pts	70.0%	no clear change
Housing units	27,685±53	1,341,114	+3,116
Homeowner vacancy rate	0.6%±0.4 pts	0.8%	–
Rental vacancy rate	6.3%±2.3 pts	8.2%	–
Single-family detached homes	66.7%±2.2 pts	69.3%	–
Mobile homes	10.7%±1.8 pts	14.4%	–
Built 2020 or later	2.3%±0.9 pts	1.7%	–
Built 1939 or earlier	1.2%±0.4 pts	4.0%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How many new homes is Lamar County building?

Builders took permits for 44 new housing units across Lamar County in 2025 (44 single-family), 0.7 per 1,000 residents.

2019 20 units
2020 26 units
2021 30 units
2022 62 units
2023 41 units
2024 45 units
2025 44 units

Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Lamar County get to work?

81.2% of Lamar County's workers drive alone and 5.4% work from home. The average trip to work takes 26.0 minutes. The unemployment rate in 2020-2024 averaged 4.8%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Lamar County	Mississippi	Change since 2015-2019
In the labor force (age 16+)	64.2%±1.4 pts	57.4%	–
Unemployment rate	4.8%±1.4 pts	5.8%	−5.5 pts
Drove alone to work	81.2%±2.4 pts	81.8%	–
Carpooled	9.4%±2.2 pts	9.2%	–
Public transportation	0.2%±0.2 pts	0.3%	–
Walked	0.7%±0.5 pts	1.3%	–
Worked from home	5.4%±1.1 pts	5.9%	+3.0 pts
Mean travel time to work	26.0 min±1.4	25.6 min	no clear change

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What are Lamar County's census tracts?

Lamar County is divided into 17 census tracts. Among those with a reliable estimate, median household income runs from $30,950 (Tract 203.05) to $126,676 (Tract 203.06).

Census tracts of Lamar County, ACS 2020-2024 5-year estimates; sort by any column

Tract 201.0128073020101	Sumrall (33%)	3,385	3,201±335	$57,218	$161,800	$1,162	16.1%
Tract 201.0228073020102	Sumrall (19%)	6,752	7,994±838	$83,955	$258,000	$1,134	8.7%
Tract 202.0328073020203	Oak Grove (51%)	3,076	3,522±975	$74,346	$220,000	$1,410	7.9%
Tract 202.0428073020204	–	4,595	4,583±673	$64,486	$220,800	$983	10.7%
Tract 202.0528073020205	Hattiesburg (12%)	4,575	4,018±428	$84,808	$363,400	$1,279	3.4%
Tract 202.0628073020206	Hattiesburg (14%)	4,524	5,048±619	$123,182	$340,100	$2,016	2.3%
Tract 203.0328073020303	Hattiesburg (15%)	3,849	3,839±784	$84,355	$226,200	$1,034	3.3%
Tract 203.0428073020304	West Hattiesburg (51%)	4,661	4,547±797	$80,284	$215,400	$1,436	9.7%
Tract 203.0528073020305	West Hattiesburg (55%)	3,653	4,221±944	$30,950	$147,000	$990	55.1%
Tract 203.0628073020306	Hattiesburg (55%)	3,512	2,521±373	$126,676	$213,100	$1,306	12.3%
Tract 203.0728073020307	Hattiesburg	1,678	1,488±339	$41,853	not published	$964	40.1%
Tract 203.0828073020308	Hattiesburg (50%)	2,963	2,881±448	$56,614	$196,300	$1,440	21.3%
Tract 204.0128073020401	Purvis (49%)	2,209	2,313±366	$55,357	$221,200	$903	29.3%
Tract 204.0228073020402	Purvis (37%)	4,636	4,656±674	$72,964	$183,200	$1,050	8.4%
Tract 205.0128073020501	Baxterville (4%)	3,896	4,568±882	$93,750	$140,000	not published	16.1%
Tract 205.0228073020502	–	3,322	3,501±494	$61,382	$251,000	$821	17.1%
Tract 20628073020600	Lumberton (55%)	2,936	2,812±510	$45,227	$98,500	$913	22.7%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

How does Lamar County compare with Mississippi's other counties?

Lamar County's rank among Mississippi's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	11th of 82
Growth 2020-2025	7th of 82
Residents per square mile	9th of 82
Median household income	4th of 82
Median home value	6th of 82
Median gross rent	4th of 81
Poverty rate	76th of 82
Bachelor's degree or higher	4th of 82
Median age	63rd of 82

Every county in Mississippi

Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Lamar County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.