• county
  • FIPS 28145
  • Largest town: New Albany

Union County, Mississippi

Union County had 28,363 residents in the Census Vintage 2024 estimate, on 415.6 square miles of land. It ranks 30th of 82 in Mississippi by population and 70th by land area.

Population
28,363
#30 of 82 in Mississippi · #1,496 in US
Area
415.6 sq mi
#70 of 82 in Mississippi · #2,432 in US
Density
68 / sq mi
#21 of 82 in Mississippi · #1,193 in US
Median household income
$55,304
#15 of 82 in Mississippi · #2,296 in US

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

Union County within Mississippi. Pin: Jackson.

Measure from here

Tools and pages that start from Union County

Union County population, land area and income

Union County had 28,363 residents in the Census Vintage 2024 estimate, on 415.6 square miles of land. It ranks 30th of 82 in Mississippi by population and 70th by land area. That works out to 68.2 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Mississippi has 21,443 residents; Union County is somewhat larger.

Its SAIPE 2023 median household income of $55,304 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

28,363

3144th1st

1496th of 3,144 (US)

Land area

416 sq mi

3144th1st

2432nd of 3,144 (US)

Density

68.2 / sq mi

3144th1st

1193rd of 3,144 (US)

Median household income

$55,304

3143rd1st

2296th of 3,143 (US)

Rank within Mississippi (82)

Population

28,363

82nd1st

30th of 82 (MS)

Land area

416 sq mi

82nd1st

70th of 82 (MS)

Density

68.2 / sq mi

82nd1st

21st of 82 (MS)

Median household income

$55,304

82nd1st

15th of 82 (MS)

How Union County's population changed since 2020

Union County gained 549 residents between the July 2020 and July 2024 estimates, a rise of 2.0%. That ranks 13th 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, Union County recorded 1,437 births and 1,443 deaths, a natural change of -6. Net international migration added +43 and net domestic migration, people moving to or from other US counties, came to +530. The largest single component was domestic migration, which added 530 people.

27.8k202028.0k202128.1k202228.3k202328.4k2024
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
1,437
Deaths
1,443
Net international migration
+43
Net domestic migration
+530
Change, July 2023 to July 2024
+88

Where Union County is

The Census internal point of Union County is at 34.489500, -89.002300. 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 Union 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: Union County internal point. Dark pin: Jackson.

Internal point

Decimal
34.489500, -89.002300
DMS
34°29'22.20"N 89°00'8.28"W
UTM
16N 316145.8E 3818252.5N
Geohash
dn0snwweb
Plus code
866GFXQX+Q3

Towns in Union County

One incorporated place of 1,000+ people has residents in Union County, 7,729 people together, or 27% of the county. Each figure counts only the part of the town inside Union County; towns marked "part" extend into another county. The largest is New Albany with 7,729.

  1. 01New Albany7,729
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Union County

The Census 2024 county adjacency file lists 7 neighbors for Union County. The most populous is Lee County, MS, with 83,012 residents. Distances run between Census internal points in a straight line.

Distance to Jackson and the nearest big city

Jackson is 166.0 miles SSW of Union County's internal point in a straight line. The nearest place of 100,000 or more is Memphis, TN (population 610,919), 69.5 miles away. The nearest place of 10,000 or more is Tupelo, MS (population 37,775), 21.6 miles away.

Union County FIPS code

The FIPS code of Union County is 28145: state code 28 for Mississippi plus county code 145. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $55,304.

Questions people ask

What is the population of Union County, Mississippi?

The Census Vintage 2024 estimate for July 1, 2024 is 28,363. That is up 549 people (2.0%) from the July 2020 estimate of 27,814.

What is the FIPS code of Union County?

28145. The first two digits (28) are Mississippi; the last three (145) identify the county.

What is the largest town in Union County?

New Albany, with 7,729 residents inside Union County in 2024.

Which counties border Union County?

7 county-equivalents border it in the Census 2024 adjacency file: Lee County, MS; Lafayette County, MS; Marshall County, MS; Pontotoc County, MS; Prentiss County, MS; Tippah County, MS; Benton 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.