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Market insights · Mississippi

Union County, MS: growth, migration and housing

Union County has 28,459 residents, up 2.3% since 2020 (+0.3% in the last year). In 2022–2023, 673 households moved in and 685 moved out (-12 net), bringing in a net $2.1M of income. Median household income is $55,505, the median home $163,400 and median rent $865 a month.

Population (2025)28,459
5-year growth+2.3%
1-year growth+0.3%
Net households moving in-12
Per 1,000 residents-0.4
Net income moving in+$2.1M
Median household income$55,505
Median home value$163,400
Median rent$865/mo
Rent as share of income19%

In Mississippi: 14th of 82 counties for 5-year population growth · 30th of 81 counties for net in-migration (per resident) · 21st of 82 counties for median household income · 18th of 82 counties for median home value.

Where new residents came from

Top counties by households (tax returns) moving to Union County, 2022–2023 (IRS).

FromHouseholds (tax returns)Their income (AGI)
Pontotoc County, MS111$4.3M
Lee County, MS107$5.0M
Tippah County, MS64$2.1M
Benton County, MS30$1.1M
Lafayette County, MS29$1.6M
DeSoto County, MS25$1.3M
Marshall County, MS20$1.1M

Where leavers went

Top counties by households leaving Union County, 2022–2023 (IRS).

ToHouseholds (tax returns)Their income (AGI)
Lee County, MS142$6.9M
Pontotoc County, MS116$4.1M
Tippah County, MS55$2.5M
Lafayette County, MS37$1.4M
Prentiss County, MS35$1.3M
Marshall County, MS28$0.8M
Benton County, MS24$1.1M
Itawamba County, MS21$0.8M

BizyFi in Union County

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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.