• county
  • FIPS 28073
  • Largest town: Hattiesburg

Lamar County, Mississippi

Lamar County had 66,734 residents in the Census Vintage 2024 estimate, on 496.6 square miles of land. It ranks 10th of 82 in Mississippi by population and 50th by land area.

Population
66,734
#10 of 82 in Mississippi · #820 in US
Area
496.6 sq mi
#50 of 82 in Mississippi · #2,097 in US
Density
134 / sq mi
#9 of 82 in Mississippi · #744 in US
Median household income
$63,079
#8 of 82 in Mississippi · #1,556 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Lamar County within Mississippi. Pin: Jackson.

Measure from here

Tools and pages that start from Lamar County

Lamar County population, land area and income

Lamar County had 66,734 residents in the Census Vintage 2024 estimate, on 496.6 square miles of land. It ranks 10th of 82 in Mississippi by population and 50th by land area. That works out to 134.4 people per square mile, 1.4 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in Mississippi has 21,443 residents, so Lamar County is 3.1 times that size.

Its SAIPE 2023 median household income of $63,079 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

66,734

3144th1st

820th of 3,144 (US)

Land area

497 sq mi

3144th1st

2097th of 3,144 (US)

Density

134.4 / sq mi

3144th1st

744th of 3,144 (US)

Median household income

$63,079

3143rd1st

1556th of 3,143 (US)

Rank within Mississippi (82)

Population

66,734

82nd1st

10th of 82 (MS)

Land area

497 sq mi

82nd1st

50th of 82 (MS)

Density

134.4 / sq mi

82nd1st

9th of 82 (MS)

Median household income

$63,079

82nd1st

8th of 82 (MS)

How Lamar County's population changed since 2020

Lamar County gained 2,341 residents between the July 2020 and July 2024 estimates, a rise of 3.6%. That ranks 7th of 82 in Mississippi for growth. The median Mississippi county changed by -1.6%, and the state as a whole by -0.5%.

Since the April 2020 estimates base, Lamar County recorded 3,196 births and 2,447 deaths, a natural change of +749. Net international migration added +227 and net domestic migration, people moving to or from other US counties, came to +1,571. The largest single component was domestic migration, which added 1,571 people.

64.4k202065.4k202165.8k202266.2k202366.7k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
3,196
Deaths
2,447
Net international migration
+227
Net domestic migration
+1,571
Change, July 2023 to July 2024
+527

Where Lamar County is

The Census internal point of Lamar County is at 31.197600, -89.506400. It sits in UTM zone 16N. The map shades Mississippi's 82 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Lamar County outlined. Dots are towns of 1,000+ people with residents in it.

Itawamba County: +1.4%Tate County: +1.5%Lafayette County: +7.0%Marshall County: +1.7%Leake County: +1.0%Newton County: -0.9%Choctaw County: -1.4%Grenada County: -3.0%Jones County: -2.0%Kemper County: -4.5%Pontotoc County: +2.6%Stone County: +6.8%Jefferson Davis County: -1.9%Covington County: -1.6%Jasper County: -3.4%George County: +6.2%Webster County: +1.4%Panola County: -1.2%Humphreys County: -7.9%Franklin County: -1.9%Oktibbeha County: +0.5%Yalobusha County: +0.2%Alcorn County: -1.5%Perry County: -0.5%Sharkey County: -14.3%Neshoba County: -0.1%Greene County: +1.1%Noxubee County: -3.9%Clarke County: -2.5%Quitman County: -9.9%Forrest County: +0.3%Washington County: -7.8%Holmes County: -7.8%Simpson County: -1.1%Montgomery County: -3.9%Wayne County: -0.3%Lauderdale County: -2.9%Tippah County: -1.4%Scott County: -1.1%Benton County: -1.3%Smith County: -1.1%Hinds County: -6.5%Prentiss County: +2.1%Copiah County: -2.6%Issaquena County: -2.3%Yazoo County: -13.7%Union County: +2.0%Calhoun County: -3.5%Marion County: -1.5%Chickasaw County: -1.8%Wilkinson County: -8.3%Warren County: -5.5%Bolivar County: -7.9%Clay County: -2.2%Lincoln County: +0.3%Lowndes County: -2.7%Harrison County: +2.3%Madison County: +4.6%Lamar County: +3.6%Leflore County: -7.7%Sunflower County: -10.4%Winston County: -1.5%Jefferson County: -4.8%Adams County: -2.6%Hancock County: +0.8%Lee County: -0.4%Pearl River County: +5.0%Attala County: -3.3%Walthall County: -0.2%Monroe County: -1.9%Coahoma County: -5.3%Rankin County: +2.2%Lawrence County: -2.6%Amite County: -2.0%Claiborne County: -10.7%DeSoto County: +5.2%Tallahatchie County: -13.6%Tunica County: -5.9%Jackson County: +2.5%Pike County: -3.0%Carroll County: -5.7%Tishomingo County: -1.6%
Change 2020 to 2024
  1. < -5.3%
  2. < -2.3%
  3. < -1.2%
  4. < +1.1%
  5. ≥ +1.1%
no data

Orange pin: Lamar County internal point. Dark pin: Jackson.

Internal point

Decimal
31.197600, -89.506400
DMS
31°11'51.36"N 89°30'23.04"W
UTM
16N 261183.1E 3454208.1N
Geohash
dj837pr7j
Plus code
863G5FXV+2C

Towns in Lamar County

4 incorporated places of 1,000+ people have residents in Lamar County, 12,523 people together, or 19% of the county. Each figure counts only the part of the town inside Lamar County; towns marked "part" extend into another county. The largest is Hattiesburg with 6,760.

  1. 01Hattiesburg (part)6,760
  2. 02Sumrall2,172
  3. 03Purvis1,955
  4. 04Lumberton (part)1,636
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Lamar County

The Census 2024 county adjacency file lists 5 neighbors for Lamar County. The most populous is Forrest County, MS, with 78,435 residents. Distances run between Census internal points in a straight line.

Distance to Jackson and the nearest big city

Jackson is 85.9 miles NNW of Lamar County's internal point in a straight line. The nearest place of 100,000 or more is New Orleans, LA (population 362,701), 83.1 miles away. The nearest place of 10,000 or more is Hattiesburg, MS (population 48,522), 13.5 miles away.

Lamar County FIPS code

The FIPS code of Lamar County is 28073: state code 28 for Mississippi plus county code 073. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $63,079.

Questions people ask

What is the population of Lamar County, Mississippi?

The Census Vintage 2024 estimate for July 1, 2024 is 66,734. That is up 2,341 people (3.6%) from the July 2020 estimate of 64,393.

What is the FIPS code of Lamar County?

28073. The first two digits (28) are Mississippi; the last three (073) identify the county.

What is the largest town in Lamar County?

Hattiesburg, with 6,760 residents inside Lamar County in 2024 (48,522 across all 2 counties it spans).

Which counties border Lamar County?

5 county-equivalents border it in the Census 2024 adjacency file: Forrest County, MS; Pearl River County, MS; Marion County, MS; Covington County, MS; Jefferson Davis County, MS.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.