Louisiana · GEOID 22099

St. Martin Parish

2024 ACS 5-year estimates · population 51,353 · 23,828 housing units

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Median household income
$55,960
State $61,581
Median home value
$164,200
State $215,207
Median gross rent
$870
State $1,064
Homeownership rate
77.7%
State 67.4%
Renter cost-burden rate
44.7%
≥30% of income
Owner cost-burden rate
16.3%
≥30% of income
Homeowner vacancy
1.3%
Of owner-occupied + for-sale units
Rental vacancy
4.7%
Of renter-occupied + for-rent units
Overall vacancy
17.8%
All housing units
Price-to-income ratio
2.93
Affordable: 2.0–3.0

Section 1

Community Profile

Population, demographics, household composition, and income.

Community Data Summary

St. Martin ParishLouisiana
Population 51,353 4,611,961
Population density (per sq. mi.) 69.63
Median household income $55,960 $61,581
HUD Area Median Income (4-person, 100%) $90,300
Households 19,579
Average household size 2.61 people
Owner-occupied 77.7% 67.4%
Renter-occupied 22.3% 32.6%
Race 63.4% White · 28.6% Black 0.0% White · 0.0% Black
Source: ACS 5-year 2024 (Tables DP05, S1101, DP04, S1901) and Census Gazetteer (land area); HUD FY2026 Income Limits.

Racial composition

St. Martin Parish compared with Louisiana.
Source: ACS 5-year 2024, Table DP05.

Educational attainment (population 25+)

16.8% hold a bachelor's degree or higher (state: 27.0%).
Source: ACS 5-year 2024, Table S1501.

Median Household Income by Tenure

Owner-occupied vs. renter-occupied household income, county and state.
Source: ACS 5-year 2024, Table B25119.

Median Household Income by Age of Householder

Median household income by age group of householder.
Source: ACS 5-year 2024, Table B19049.

Median Household Income by Number of Earners

Median household income for families with each earner count.
Source: ACS 5-year 2024, Table S1903.

Household Size

Distribution of households by number of people.
Source: ACS 5-year 2024, Table S2501.

Income by Number of Earners

Earners Share Median income Attainable monthly housing cost Attainable home
0 earners 19.7% $33,429 $836 $93,415
1 earner 31.8% $50,777 $1,269 $157,990
2 earners 38.9% $107,586 $2,690 $369,452
3+ earners 9.6% $137,165 $3,429 $479,555
Attainable monthly housing cost = 30% of gross income ÷ 12. Attainable home price assumes 30% housing budget, 30-yr mortgage at 7%, 5% down.
Source: ACS 5-year 2024, Table S1903; affordability formula derived.

Households

19,579

Average size: 2.61 people

Households with children

5,521

28.2% of households

Per-capita income

$31,041

Poverty rate: 14.1%

Section 2

Residential Market Analysis

Housing stock characteristics — tenure, type, age, size, vacancy, rents.

Tenure

77.7% owner-occupied vs. state average 67.4%.
Source: ACS 5-year 2024, Table DP04.

Structure type

Single-family share 70.7% · Missing middle (2–19 units) 3.9%.
Source: ACS 5-year 2024, Table B25024.

Housing stock by decade

40.6% built before 1980 · Median structure age 1,986.00 yrs.
Source: ACS 5-year 2024, Table S2504.

Housing size mismatch

Compares the share of housing units by bedroom count against the share of households by size — a common diagnostic of housing supply/demand alignment.
Source: ACS 5-year 2024, Tables B25041 (bedrooms) and S2501 (household size).

Home value distribution

Owner-occupied homes by value bracket. Median: $164,200.
Source: ACS 5-year 2024, Table DP04.

Monthly Housing Costs

Distribution of monthly housing costs across all occupied units.
Source: ACS 5-year 2024, Table B25104.

Number of Bedrooms

Housing units by number of bedrooms.
Source: ACS 5-year 2024, Table B25041.

Median rent by bedroom

Overall median gross rent: $870.
Source: ACS 5-year 2024, Table B25031.

Renters by age

Number of renter householders by age bracket.
Source: ACS 5-year 2024, Table S2502.

Owners by age

Number of owner householders by age bracket.
Source: ACS 5-year 2024, Table S2502.

Vacancy composition

All 4,249 vacant units split into Census's seven categories. Frictional vacancy (units actively on the market) reflects healthy churn. Structural vacancy (seasonal, migrant, other) sits outside the market for year-round residents — high values change how the headline vacancy rate should be read.

Vacant units by type

For sale 4.8% · For rent 5.1% · Seasonal 35.4% · Other 48.9%.
Source: ACS 5-year 2024, Table B25004.

Frictional vs structural

12.2% of vacancy is frictional (for sale + for rent + rented/sold not yet occupied); 87.8% is structural (seasonal + migrant + other).
Source: ACS 5-year 2024, Table B25004.

Seasonal / recreational share of all housing

6.3%

1,506 units of 23,828 total

Housing units held for seasonal or recreational use.

"Other vacant" share of all housing

8.7%

2,079 units of 23,828 total

⚑ Above the 5% threshold — possible indicator of disinvestment, abandonment, or condemned stock.

Section 3

Workforce Housing Needs Assessment

Affordability, cost burden, and the housing options for households in the workforce income range.

Workforce range — ACS median household income

80% MHI$44,768
100% MHI$55,960
120% MHI$67,152

County-wide median from ACS 5-year estimates. A household at 100% MHI in St. Martin Parish should be able to afford a home up to roughly (30% housing budget, default mortgage terms).

Workforce range — HUD Area Median Income

1-person2-person4-person
80% AMI $50,600 $57,800 $72,250
100% AMI $63,210 $72,240 $90,300
120% AMI $75,850 $86,700 $108,350

HUD FMR Area: Lafayette, LA HUD Metro FMR Area. 80% AMI uses HUD's published Section 8 Low Income Limits; 100% is HUD MFI; 120% is the standard workforce convention.

Affordability calculator

Follows the standard 30%-of-gross-income affordability rule.

Affordable monthly
Affordable home price

Renter cost burden

44.7% of renter households spend ≥30% of income on rent (27.3% spend ≥50%).
Source: ACS 5-year 2024, Table B25070.

Owner cost burden by income

16.3% of homeowners spend ≥30% of income on housing. Bars show counts of cost-burdened owners by income bracket.
Source: ACS 5-year 2024, Table B25106.

Household income — owners vs renters

Distribution of household income for owner-occupied (navy) and renter-occupied (gold) households.
Source: ACS 5-year 2024, Table B25118.

Section 4

Industry & Workforce Wages

Employment, average wages, and the housing each industry's typical earner can afford in St. Martin Parish.

Covered employment
10,458
Across 16 sectors
Establishments
979
QCEW 2024
Avg annual pay (workforce)
$54,340
Employment-weighted across sectors

Top 10 sectors by employment

Annual average employment by NAICS 2-digit sector. Counties with fewer than five covered establishments in a sector may show suppressed totals.
Source: BLS QCEW Annual Averages, 2024.

Attainable housing by industry

Industry Employment Avg annual wage Affordable home price vs. median value Affordable monthly rent
NAICS 31-33 Manufacturing NAICS 31-33 2,368 $79,330 $264,274 +$100,074 $1,983
NAICS 44-45 Retail trade NAICS 44-45 1,898 $32,431 $89,700 −$74,500 $811
NAICS 62 Health care and social assistance NAICS 62 1,438 $39,249 $115,079 −$49,121 $981
NAICS 72 Accommodation and food services NAICS 72 1,044 $17,246 $33,176 −$131,024 $431
NAICS 23 Construction NAICS 23 841 $58,178 $185,539 +$21,339 $1,454
NAICS 42 Wholesale trade NAICS 42 714 $76,898 $255,221 +$91,021 $1,922
NAICS 92 Public administration NAICS 92 482 $44,807 $135,767 −$28,433 $1,120
NAICS 54 Professional, scientific, and technical services NAICS 54 424 $74,751 $247,229 +$83,029 $1,869
NAICS 48-49 Transportation and warehousing NAICS 48-49 333 $68,477 $223,875 +$59,675 $1,712
NAICS 53 Real estate and rental and leasing NAICS 53 267 $90,109 $304,397 +$140,197 $2,253
NAICS 21 Mining, quarrying, and oil and gas extraction NAICS 21 177 $85,170 $286,012 +$121,812 $2,129
NAICS 52 Finance and insurance NAICS 52 175 $52,813 $165,568 +$1,368 $1,320
NAICS 71 Arts, entertainment, and recreation NAICS 71 121 $27,315 $70,656 −$93,544 $683
NAICS 22 Utilities NAICS 22 74 $94,773 $321,758 +$157,558 $2,369
NAICS 11 Agriculture, forestry, fishing and hunting NAICS 11 61 $72,406 $238,500 +$74,300 $1,810
NAICS 61 Educational services NAICS 61 41 $33,943 $95,328 −$68,872 $849
Affordable home price assumes the industry's average earner uses 30% of gross income for housing, with a 30-year mortgage at 7%, 5% down, $2,500/yr taxes & insurance, and 0.5% PMI. Adjust the Section 3 calculator for other terms. Affordable rent is 30% of monthly gross pay.
Source: BLS QCEW Annual Averages, 2024; ACS 5-year 2024 (median home value).

Section 5

Wages by Occupation

Selected essential-worker occupations for the MSA or nonmetropolitan area containing this county — jobs, the 10-year change, wages, and the housing each typical earner can afford. Both jobs counts and wages are reported at the MSA / nonmetropolitan-area level (BLS does not publish OEWS at the county level), so every county inside the same area shows the same numbers. For county-accurate employment totals, see Section 4 above.

Occupational wages and affordable housing

Occupation 2025
jobs
2015–2025
change
%
change
Hourly
wage
Annual
wage
Affordable
home price
Affordable
monthly rent
Waiters and Waitresses SOC 35-3031 3,410 (500) (13%) $10.31 $21,440 $48,787 $536
Childcare Workers SOC 39-9011 940 (380) (29%) $11.52 $23,970 $58,205 $599
Fast Food and Counter Workers SOC 35-3023 · prior-year code differs 4,480 1,080 32% $11.56 $24,040 $58,466 $601
Cashiers SOC 41-2011 4,480 (3,560) (44%) $12.51 $26,020 $65,836 $651
Janitors and Cleaners SOC 37-2011 2,200 (890) (29%) $14.16 $29,450 $78,603 $736
Home Health and Personal Care Aides SOC 31-1131 · prior-year code differs 1,990 (2,200) (53%) $14.83 $30,850 $83,815 $771
Retail Salespersons SOC 41-2031 5,010 (1,960) (28%) $15.05 $31,310 $85,527 $783
Firefighters SOC 33-2011 220 0 0% $15.79 $32,850 $91,259 $821
Tellers SOC 43-3071 600 (430) (42%) $16.29 $33,880 $95,093 $847
Office Clerks, General SOC 43-9061 4,240 (1,210) (22%) $16.48 $34,280 $96,582 $857
Construction Laborers SOC 47-2061 1,780 30 2% $20.22 $42,060 $125,542 $1,052
Maintenance and Repair Workers, General SOC 49-9071 2,100 (1,680) (44%) $20.59 $42,830 $128,408 $1,071
Carpenters SOC 47-2031 580 (500) (46%) $23.30 $48,450 $149,328 $1,211
Police and Sheriff's Patrol Officers SOC 33-3051 910 (100) (10%) $24.42 $50,790 $158,038 $1,270
Elementary School Teachers, Except Special Education SOC 25-2021 950 (1,350) (59%) $51,320 $160,011 $1,283
Heavy and Tractor-Trailer Truck Drivers SOC 53-3032 2,920 0 0% $26.54 $55,190 $174,416 $1,380
Plumbers, Pipefitters, and Steamfitters SOC 47-2152 680 (110) (14%) $26.77 $55,690 $176,278 $1,392
Electricians SOC 47-2111 730 (860) (54%) $28.45 $59,180 $189,269 $1,480
Paramedics SOC 29-2043 370 $28.70 $59,690 $191,167 $1,492
Registered Nurses SOC 29-1141 4,930 1,480 43% $40.69 $84,630 $284,002 $2,116
Affordable home price uses the same Section 3 formula (30% housing budget, 30-year mortgage at 7%, 5% down, $2,500/yr T&I, 0.5% PMI). Affordable rent is 30% of monthly wages. Negative job-change values are shown in red parentheses. A "prior-year code differs" note flags occupations whose SOC code changed between the two vintages (2010 SOC → 2018 SOC) — the change estimate is best-effort.
Source: BLS OEWS May 2025 (10-year change vs. May 2015). Jobs counts and wages reflect the MSA or nonmetropolitan area containing this county, not the county alone — OEWS is not published at the county level.
Methodology & sources

All figures derive from the 2024 American Community Survey 5-year estimates. State and national comparisons are population-weighted aggregates of county-level estimates (an approximation; ACS publishes its own state and national medians which can differ slightly).

The affordability calculator uses a 30% housing-budget rule with a 30-year mortgage. Defaults are 7% interest, 5% down, $2,500/year taxes and insurance, and 0.5% PMI — adjustable above.

Variables: 22099 · pulled from Full Housing Data Table.xlsx.