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Market insights · Florida

Martin County, FL: growth, migration and housing

Martin County has 166,272 residents, up 4.8% since 2020 (+0.7% in the last year). In 2022–2023, 6,226 households moved in and 5,639 moved out (+587 net), bringing in a net $383.3M of income. Median household income is $82,943, the median home $432,200 and median rent $1,569 a month.

Population (2025)166,272
5-year growth+4.8%
1-year growth+0.7%
Net households moving in+587
Per 1,000 residents+3.5
Net income moving in+$383.3M
Median household income$82,943
Median home value$432,200
Median rent$1,569/mo
Rent as share of income23%

In Florida: 49th of 67 counties for 5-year population growth · 47th of 67 counties for net in-migration (per resident) · 10th of 67 counties for median household income · 6th of 67 counties for median home value.

Where new residents came from

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

FromHouseholds (tax returns)Their income (AGI)
Palm Beach County, FL1,407$181.1M
St. Lucie County, FL1,048$72.7M
Broward County, FL271$48.0M
Miami-Dade County, FL131$26.4M
Suffolk County, NY116$15.8M
Orange County, FL70$4.1M
Indian River County, FL61$5.8M
Nassau County, NY61$37.0M

Where leavers went

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

ToHouseholds (tax returns)Their income (AGI)
St. Lucie County, FL1,293$97.5M
Palm Beach County, FL714$84.4M
Indian River County, FL112$9.4M
Brevard County, FL107$6.4M
Broward County, FL101$6.9M
Orange County, FL94$4.4M
Hillsborough County, FL79$6.7M
Okeechobee County, FL78$4.1M

BizyFi in Martin County

Fewer than 3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse Florida companies.

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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.