St. Mary Parish, Louisiana: commercial real estate data.
St. Mary Parish, Louisiana has a population of 47,828 across 555 square miles, down 5.3 percent since the 2020 census base. County output reached $3.53 bn in 2024, 1,083 establishments operate here, and the SBA record carries 16 7(a) approvals worth $22.8 m.
119 sourced county values · tier FULL · 11 sections
St. Mary Parish
How many people live in St. Mary Parish
- Population47,828
- Households18,463
- Average household size2.59
- Median household income$52,576
- Median age39.7
- Median gross rent$848 per month
- Median owner-occupied home value$138,900
- Home value to household income2.6 times
- Annual rent as a share of median income19.4 percent
- Adults 25 and over with a bachelor degree or higher13.7 percent
- Adults 25 and over with a graduate degree4.1 percent
- Adults 25 and over32,517
- Population under 1811,697
- Share under 1824.5 percent
- Population 65 and over8,771
- Share 65 and over18.3 percent
- Working age population, 18 to 6427,360
- Civilian labor force20,221
- Unemployment rate5.4 percent
- Labor force participation, adults 18 and over56.0 percent
- Rank by population among Louisiana parishes23rd of 64
- Rank by population among US county-equivalents1044th
St. Mary Parish is the 23rd largest of 64 Louisiana parishes by population. A median home costs 2.6 times median household income, which is an affordable ownership market by national standards. Residents under 18 outnumber those 65 and over, at 24.5 percent against 18.3 percent, a household formation profile rather than a retirement one.
US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
St. Mary Parish
Is St. Mary Parish growing
- Population change since the 2020 census base-5.28 percent
- Census 2020 base population49,408
- Births, 2024582
- Deaths, 2024680
- Natural change, 2024-98
- Net domestic migration, 2024-473
- Net international migration, 2024237
- Total net migration, 2024-236
- Cumulative net domestic migration, 2021 to 2024-2,657
- Rank by growth among US county-equivalents2999th
The county has lost 5.28 percent of its population since the 2020 census base.
US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
St. Mary Parish
Where people moving to St. Mary Parish come from
- Tax returns filed by households arriving784
- People arriving, from those returns1,481
- Adjusted gross income arriving$27.3 m
- Net adjusted gross income movement$0
- Average income of an arriving household$34,758
- Largest single originSt. Mary Parish Non-migrants (16,439 households)
- Largest single destination (16,439 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| St. Mary Parish Non-migrants | 16,439 | 34,846 | $932.4 m |
| Other flows - Different State | 192 | 376 | $7.3 m |
| Other flows - South | 137 | 271 | $5.0 m |
| Other flows - Same State | 136 | 240 | $5.1 m |
| Terrebonne Parish | 108 | 215 | $3.0 m |
| Iberia Parish | 91 | 181 | $2.8 m |
| Lafayette Parish | 77 | 138 | $2.7 m |
| Lafourche Parish | 72 | 136 | $2.4 m |
The largest single source of arrivals is St. Mary Parish Non-migrants, 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. Mary Parish
What the St. Mary Parish economy runs on
- County GDP, 2024$3.53 bn
- County GDP, 2023$3.57 bn
- GDP change, 2023 to 2024-1.2 percent
- GDP change over five years40.2 percent
- Rank by GDP among Louisiana parishes20th
- Rank by GDP among US county-equivalents889th
- GDP per resident$73,757
Output grew -1.2 percent in the latest year and 40.2 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. Mary Parish
Who employs people in St. Mary Parish
- Covered employment, annual average19,838
- Establishments reporting1,436
- Average annual pay$61,932
- Average weekly wage$1,191
- Sector 31-33, employment2,840
- Sector 31-33, average annual pay$82,029
- Sector 44-45, employment2,019
- Sector 44-45, average annual pay$32,076
- Sector 62, employment1,974
- Sector 62, average annual pay$38,306
- Sector 21, employment1,638
- Sector 21, average annual pay$118,540
- Sector 56, employment1,427
- Sector 48-49, employment1,418
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Sector 31-33 | 2,840 | 89 | $82,029 |
| Sector 44-45 | 2,019 | 192 | $32,076 |
| Sector 62 | 1,974 | 121 | $38,306 |
| Sector 21 | 1,638 | 30 | $118,540 |
| Sector 56 | 1,427 | 93 | $42,371 |
| Sector 48-49 | 1,418 | 94 | $111,153 |
| Sector 72 | 1,349 | 102 | $20,553 |
| Sector 23 | 926 | 106 | $70,741 |
The largest sector is the biggest private employer group at 2,840 jobs, 14.3 percent of covered employment. Average pay per job exceeds median household income, which usually means single earner households and a wage base that can carry rent.
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
St. Mary Parish
What businesses operate in St. Mary Parish
- Establishments, all industries1,083
- Employment at those establishments18,400
- Annual payroll$1.10 bn
- Establishments per 1,000 residents22.6
These are counts of establishments physically operating in the county, not listings, so they are the supply side a feasibility study measures demand against.
US Census Bureau, County Business Patterns, 2023.
St. Mary Parish
What is being built in St. Mary Parish
- Housing units authorised by permit, 202447
- Declared construction value permitted$8.9 m
- Single family units authorised27
- Multifamily units authorised20
- Multifamily share of units42.6 percent
- Average declared value per unit$188,585
- Units authorised per 1,000 households2.5
Multifamily is 42.6 percent of units authorised, so the pipeline is being built for renters rather than buyers.
US Census Bureau, Building Permits Survey, 2024 annual.
St. Mary Parish
How much SBA lending happens in St. Mary Parish
- 7(a) approvals recorded16
- 7(a) gross approval dollars$22.8 m
- Average 7(a) approval$1,426,606
- Median 7(a) approval$1,250,000
- 10th percentile approval$47,200
- 90th percentile approval$5,000,000
- Largest single approval$5,000,000
- Jobs reported supported, 7(a)531
- Jobs per approval33.2
- Distinct 7(a) lenders active14
- Distinct industries receiving approvals13
- Median 7(a) term120 months
- Share of loans on real estate terms, 240 months or longer25.0 percent
- Loans on real estate terms4
- Loans on working capital terms, 120 months or shorter10
- Franchise loans3
- Franchise share of approvals18.8 percent
- Leading industry by approval countHotels (except Casino Hotels) and Motels (3)
- Most active lenderRegions Bank (2)
- 504 approvals recorded4
- 504 gross approval dollars$4.8 m
- Average 504 approval$1,192,500
- Median 504 approval$865,000
- Distinct CDCs active2
- 504 jobs per approval15.8
- 504 jobs per million dollars approved13.2
- Most active CDCLouisiana Capital Certified Development Company, Inc. (2)
- 7(a) share of SBA approvals80.0 percent
- Combined SBA approval dollars$27.6 m
The average approval of $1,426,606 sits close to the median of $1,250,000, so lending here is fairly evenly sized rather than driven by a few large deals. 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. Mary Parish
Do SBA loans in St. Mary Parish get paid back
- Loans with a final outcome recorded2
- Paid in full2
- Charged off0
- Status: Paid in full2
- Status: Exempt from disclosure12
- Status: Cancelled2
Too few loans have reached a final outcome to publish a charge off rate. only 2 resolved loans, too few to publish a rate. A rate computed on a handful of loans is noise, so none is shown.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
St. Mary Parish
Which parts of St. Mary Parish get the lending
- Places in the county with recorded lending5
- MORGAN CITY, approvals11
- FRANKLIN, approvals2
- Amelia, approvals1
- JEANERETTE, approvals1
- Berwick, approvals1
| Place | Approvals | Gross approval dollars |
|---|---|---|
| MORGAN CITY | 11 | $8,478,500 |
| FRANKLIN | 2 | $10,000,000 |
| Amelia | 1 | $4,200,000 |
| JEANERETTE | 1 | $100,000 |
| Berwick | 1 | $47,200 |
MORGAN CITY accounts for 11 approvals against 2 in FRANKLIN. 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. Mary Parish
How big is St. Mary Parish
- Land area555 sq mi
- Rank by land area among Louisiana parishes45th of 64
- Width, east to west48 mi
- Height, north to south33.4 mi
- Geographies sharing a boundary4
- Residents per square mile of land86
- Establishments per square mile1.95
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.
Coverage
What this page does not hold.
Every item below could be filled with a plausible figure. None of them is. On a page a lender may read, a number that cannot be traced is worse than an absence, so the absences are named.
- No NFIP communities are listed for this county in the FEMA Community Status Book.
- Flood zone record counts are not held. The flood coverage export has not landed, so no count is shown rather than an estimated one.
- Traffic counts resolve in the platform, not in this dataset, so no AADT figure is printed here.
- Zoning is in build. Parcel level zoning is not published on this page.
Feasibility studies
When a St. Mary 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. Mary Parish site starts with the figures you are reading, carrying the same source and period into the credit file.
- Population47,828
- Households18,463
- Average household size2.59
- Median household income$52,576
- Median age39.7
Common questions
St. Mary Parish questions, answered from the record.
How many people live in St. Mary Parish, Louisiana?
47,828, in 18,463 households, ranking 23rd of 64 Louisiana counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Is St. Mary Parish growing?
The population has fallen 5.28 percent since the 2020 census base. In 2024 there were 582 births against 680 deaths, with net migration of -236. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
What is the median household income in St. Mary Parish?
$52,576. The median owner-occupied home is valued at $138,900, which is 2.6 times income, and median gross rent is $848 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
How many businesses are there in St. Mary Parish?
1,083 establishments, employing 18,400 people with an annual payroll of $1.10 bn. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.
What is the average wage in St. Mary Parish?
Average annual pay is $61,932, or $1,191 a week, across 19,838 covered jobs. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
How much SBA lending happens in St. Mary Parish?
16 7(a) approvals totalling $22.8 m since FY2020, across 14 lenders, with a median approval of $1,250,000, plus 4 504 approvals worth $4.8 m. These are approvals recorded in the release, not loans disbursed.
What is being built in St. Mary Parish?
47 housing units were authorised by permit in 2024, with a declared construction value of $8.9 m. Multifamily was 42.6 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.
What is the radon zone for St. Mary 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. Mary Parish come from?
The largest single origin is St. Mary Parish Non-migrants, with 16,439 households. Arriving households report an average income of $34,758 against null 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. Mary 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. Mary Parish?
Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame with confirm locally attached.