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St. Martin Parish, Louisiana: commercial real estate data.

St. Martin Parish, Louisiana had an estimated 51,218 residents on July 1, 2024, down 1.0 percent since the 2020 census base of 51,746, across 738 square miles. County output reached $1.97 bn in 2024, 911 establishments operate here, and the SBA record carries 32 7(a) approvals worth $24.4 m since FY2020.

Underlined figures are computed by MMCG Analytics, not published by the agency.

St. Martin Parish

How many people live in St. Martin Parish

  • Population, American Community Survey 2020-202451,353
  • Households19,579
  • Average household size2.62
  • Median household income$55,960
  • Median age40.1
  • Median gross rent$870 per month
  • Median owner-occupied home value$164,200
  • Home value to household income2.9 times
  • Annual rent as a share of median income18.7 percent
  • Adults 25 and over with a bachelor degree or higher16.8 percent
  • Adults 25 and over with a graduate degree4.4 percent
  • Adults 25 and over34,998
  • Population under 1812,336
  • Share under 1824.0 percent
  • Population 65 and over8,834
  • Share 65 and over17.2 percent
  • Working age population, 18 to 6430,183
  • Civilian labor force23,364
  • Unemployment rate4.0 percent
  • Labor force participation, adults 18 and over59.9 percent
  • Rank by population among Louisiana parishes21st of 64
  • Rank by population among US county-equivalents, Puerto Rico included999th of 3,222

St. Martin Parish is the 21st largest of 64 Louisiana parishes by population. A median home costs 2.9 times median household income, which is affordable by national standards. Residents under 18 outnumber those 65 and over, at 24.0 percent against 17.2 percent, a household formation profile rather than a retirement one.

US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

St. Martin Parish

Is St. Martin Parish's population growing?

  • Population, July 1, 202451,218
  • Census 2020 base population51,746
  • Population change since the 2020 census base-1.02 percent
  • Population change, 2023 to 202496
  • Births, 2024630
  • Deaths, 2024593
  • Natural change, 202437
  • Net domestic migration, 2024-59
  • Net international migration, 2024119
  • Total net migration, 202460
  • Cumulative net domestic migration, 2021 to 2024-768
  • Rank by growth among US county-equivalents2196th of 3,144

The county has lost 1.02 percent of its population since the 2020 census base. The population grew in 2024 from both sources: births exceeded deaths and more people moved in than left.

US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.

St. Martin Parish

Where are people moving to St. Martin Parish from?

  • Tax returns filed by households arriving1,255
  • People arriving, from those returns2,418
  • Tax returns filed by households leaving1,355
  • Net household movement-100
  • Adjusted gross income arriving$59.4 m
  • Net adjusted gross income movement$3.0 m
  • Average income of an arriving household$47,299
  • Average income of a leaving household$41,590
  • Largest single originLafayette Parish (527 households)
  • Largest single destinationLafayette Parish (586 households)
Largest origins of households moving into St. Martin Parish
OriginHouseholdsPeopleAdjusted gross income
Lafayette Parish5271,007$25.2 m
Iberia Parish110214$3.8 m
St. Landry Parish86183$4.1 m
Vermilion Parish3864$1.3 m
Acadia Parish3560$1.2 m
Harris County3470$1.4 m
St. Mary Parish3266$1.7 m
East Baton Rouge Parish3051$1.2 m

Households arriving report $5,709 more average income than households leaving, so the migration is raising local spending power rather than just moving it around. The largest single source of arrivals is Lafayette Parish, which is the catchment a retail or multifamily study should look at first.

US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.

St. Martin Parish

What is the St. Martin Parish economy?

  • County GDP, 2024$1.97 bn
  • County GDP, 2023$1.90 bn
  • GDP change, 2023 to 20243.7 percent
  • GDP change over five years49.4 percent
  • Rank by GDP among the Louisiana areas BEA publishes30th of 64
  • Rank by GDP among the US county areas BEA publishes1297th of 3,127
  • GDP per resident$38,413

Output grew 3.7 percent in the latest year and 49.4 percent over five, which is the trend line a lender will read behind any single year figure.

US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024.

St. Martin Parish

Employment by industry in St. Martin Parish

  • Covered employment, annual average12,308
  • Establishments reporting1,127
  • Average annual pay$53,750
  • Average weekly wage$1,034
  • Manufacturing, employment2,368
  • Manufacturing, average annual pay$79,332
  • Retail trade, employment1,898
  • Retail trade, average annual pay$32,428
  • Health care and social assistance, employment1,438
  • Health care and social assistance, average annual pay$39,256
  • Accommodation and food services, employment1,044
  • Accommodation and food services, average annual pay$17,246
  • Construction, employment783
  • Wholesale trade, employment714
Private sector employment and pay by industry, St. Martin Parish
SectorEmploymentEstablishmentsAverage annual pay
Manufacturing2,36871$79,332
Retail trade1,898151$32,428
Health care and social assistance1,438102$39,256
Accommodation and food services1,04479$17,246
Construction783139$59,980
Wholesale trade71456$76,907
Professional, scientific and technical services424116$74,810
Transportation and warehousing27134$71,316

Manufacturing is the largest private sector at 2,368 jobs, 19.2 percent of covered employment.

US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.

St. Martin Parish

How many businesses are in St. Martin Parish?

  • Establishments, all industries911
  • Employment at those establishments10,761
  • Annual payroll$598.7 m
  • Establishments per 1,000 residents17.7

These are counts of establishments physically operating in the county, not listings, so they are the supply side a feasibility study measures demand against. County Business Patterns counts private establishments with paid employees in March 2023, while the Quarterly Census of Employment and Wages above counts every unemployment-insured employer, public ones included, as a 2024 annual average, so the two establishment and employment counts differ.

US Census Bureau, County Business Patterns, 2023.

St. Martin Parish

Building permits in St. Martin Parish

  • Housing units authorized by permit, 202455
  • Declared construction value permitted$16.8 m
  • Single family units authorized55
  • Multifamily units authorized0
  • Multifamily share of units0.0 percent
  • Average declared value per unit$304,852
  • Units authorized per 1,000 households2.8

Single-family homes are 100.0 percent of units authorized, so the pipeline is predominantly single-family.

US Census Bureau, Building Permits Survey, 2024 annual.

St. Martin Parish

SBA loans in St. Martin Parish (7(a) and 504)

  • 7(a) approvals recorded32
  • 7(a) gross approval dollars$24.4 m
  • Average 7(a) approval$761,381
  • Median 7(a) approval$382,500
  • 10th percentile approval$83,800
  • 90th percentile approval$2,340,800
  • Largest single approval$2,970,000
  • Jobs reported supported, 7(a)403
  • Jobs per approval12.6
  • Distinct 7(a) lenders active12
  • Distinct industries receiving approvals25
  • Median 7(a) term120 months
  • Share of loans on real estate terms, 240 months or longer25.0 percent
  • Loans on real estate terms8
  • Loans on working capital terms, 120 months or shorter22
  • Franchise loans5
  • Franchise share of approvals15.6 percent
  • Leading industry by approval countOther Building Equipment Contractors (3)
  • Most active lenderGulf Coast Bank (7)
  • 504 approvals recorded13
  • 504 gross approval dollars$5.2 m
  • Average 504 approval$399,154
  • Median 504 approval$264,000
  • Distinct CDCs active1
  • 504 jobs per approval6.4
  • 504 jobs per million dollars approved16.0
  • Most active CDCLouisiana Capital Certified Development Company, Inc. (13)
  • Combined SBA approval dollars, 7(a) FY2020 to FY2026 and 504 FY2010 to FY2026$29.6 m

The average approval of $761,381 sits well above the median of $382,500, pulled up by a few larger deals, so the median is the better guide to what a typical borrower here gets. Only 25.0 percent of approvals run on real estate terms, so SBA credit here is mostly working capital and equipment rather than property acquisition.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30. US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.

St. Martin Parish

SBA loan default and charge-off rates in St. Martin Parish

Do SBA loans in St. Martin Parish get paid back?

  • Loans with a final outcome recorded6
  • Paid in full6
  • Charged off0
  • Status: Exempt from disclosure14
  • Status: Paid in full6
  • Status: Cancelled11
  • Status: Committed, not yet disbursed1

Only 6 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.

Compare against the national and state SBA charge-off rates, computed the same way over resolved loans only.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.

St. Martin Parish

SBA lending by place in St. Martin Parish

  • Borrower cities with recorded lending3
  • Breaux Bridge, approvals20
  • St. Martinville, approvals6
  • Broussard, approvals6
SBA 7(a) approvals by borrower city, loans with a project in St. Martin Parish, FY2020 to FY2026
Borrower cityApprovalsGross approval dollars
Breaux Bridge20$15,632,500
St. Martinville6$6,110,900
Broussard6$2,620,800

Breaux Bridge accounts for 20 approvals against 6 in St. Martinville. County level figures average over that gap, which is why a site decision is made at the submarket rather than the county.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.

St. Martin Parish

How large is St. Martin Parish?

  • Land area738 sq mi
  • Rank by land area among Louisiana parishes25th of 64
  • Width, east to west53.6 mi
  • Height, north to south55.1 mi
  • Geographies sharing a boundary7
  • Residents per square mile of land70
  • Establishments per square mile1.23

US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary vertices, TIGER county boundaries. US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year. US Census Bureau, County Business Patterns, 2023.

St. Martin Parish

Flood risk in St. Martin Parish

  • Participation of the county's own NFIP community St. Martin Parish, unincorporated areasParticipating, community 220178
  • Communities in the county in the NFIP Community Status Book7
  • Of those, participating in the NFIP7
  • NFIP participation rate100.0 percent
  • Communities carrying a CRS class0
  • Radon levels in St. Martin Parish, EPA zone predicted average indoor radon screening level less than 2 pCi/LZone 3

The county's own community in the status book, unincorporated St. Martin Parish (community 220178), participates in the National Flood Insurance Program and carries no Community Rating System class, so no CRS premium discount applies there. The EPA places St. Martin Parish in radon zone 3, a predicted average indoor radon screening level less than 2 pCi/L. The zone is a screening prediction for the county and does not substitute for a test at an address. 100.0 percent of the county's listed communities participate in the National Flood Insurance Program, per Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.

Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26. US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.

Coverage

What this page does not hold.

Traffic counts, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →

Feasibility studies

When a St. Martin Parish site needs a document a lender will accept.

The same data layer behind this page is the one the studies are written from. A study for a St. Martin Parish site starts with the figures you are reading, carrying the same source and period into the credit file.

  • Population, American Community Survey 2020-202451,353
  • Households19,579
  • Average household size2.62
  • Median household income$55,960
  • Median age40.1

How a feasibility study works →

Common questions

St. Martin Parish questions, answered from the record.

How many people live in St. Martin Parish, Louisiana?

The Census Bureau estimates 51,218 residents on July 1, 2024 (US Census Bureau, Population Estimates Program, Vintage 2024). The American Community Survey 2020-2024 five-year estimate is 51,353, in 19,579 households, ranking 21st of 64 Louisiana counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

Is St. Martin Parish's population growing?

The population has fallen 1.02 percent since the 2020 census base of 51,746, to 51,218 on July 1, 2024. In 2024 there were 630 births against 593 deaths, with net migration of 60. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.

What is the median household income in St. Martin Parish?

$55,960. The median owner-occupied home is valued at $164,200, which is 2.9 times income, and median gross rent is $870 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

How many businesses are in St. Martin Parish?

911 establishments, employing 10,761 people with an annual payroll of $598.7 m. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.

What is employment by industry in St. Martin Parish?

Manufacturing is the largest private sector at 2,368 jobs, 19.2 percent of covered employment. Covered employment averages 12,308 jobs at an average annual pay of $53,750, or $1,034 a week. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.

How much SBA lending happens in St. Martin Parish?

32 7(a) approvals totaling $24.4 m since FY2020, across 12 lenders, with a median approval of $382,500, plus 13 504 approvals worth $5.2 m since FY2010. These are approvals recorded in the release, not loans disbursed.

How many building permits were issued in St. Martin Parish?

55 housing units were authorized by permit in 2024, with a declared construction value of $16.8 m. Multifamily was 0.0 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.

What is the radon zone for St. Martin Parish?

Zone 3, a predicted average indoor radon screening level less than 2 pCi/L. Source: US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.

Where do people moving to St. Martin Parish come from?

The largest single origin is Lafayette Parish, with 527 households. Arriving households report an average income of $47,299 against $41,590 for those leaving. Source: US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.

Are traffic counts available for St. Martin Parish on this page?

No. Annual average daily traffic resolves in the platform rather than in this dataset, so no AADT figure is printed here. It is a gap we know about rather than a figure we estimated.

Is zoning published for St. Martin Parish?

No. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame, to be confirmed locally.

St. Martin Parish

Cities and places in St. Martin.

9 Census places lie wholly or partly in St. Martin Parish. All 9 carry enough published place level data for a page of their own and are linked.

Census places in St. Martin Parish, by population, with SBA 7(a) approvals to borrowers in each place for projects in St. Martin Parish
PlaceTypePopulationSBA 7(a) approvals, projects in this countyLies in
Broussardcity14,32269.5 percent here, 90.5 percent Lafayette Parish
Breaux Bridgecity7,50120Wholly in this county
St. Martinvillecity5,2976Wholly in this county
Hendersontown1,779None recordedWholly in this county
CeciliaCDP1,742None recordedWholly in this county
CadeCDP1,710None recordedWholly in this county
Arnaudvilletown1,239None recorded6.7 percent here, 93.3 percent St. Landry Parish
Parksvillage963None recordedWholly in this county
CatahoulaCDP594None recordedWholly in this county