Terrebonne Parish, Louisiana Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Terrebonne Parish, LA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
-
C
Health Below average
-
C
Income Below average
-
F
Education Well below average
Source: Map AI Methodology
Population: density and quick facts
| Metric | Terrebonne Parish | Louisiana Avg | U.S. Average |
|---|---|---|---|
| Population | 106,185 | 4,610,276 | 337,468,954 |
| Population density (per sq mi) | 51.0 | 88.0 | 86.4 |
| Population growth (%/yr) | -0.79% | -0.10% | 0.59% |
| Median age | 35.9 | 35.9 | 37.3 |
| Households | 42,126 | 1,803,262 | 130,235,071 |
Population in Terrebonne Parish declined by 1.9% from 2009 to 2024, reaching 106,185 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Terrebonne Parish is Gen Z, aged 13–28, at 21.9% of residents. That is 0.4 points above Louisiana as a whole.
- Gen Z 13–28 23,237 21.9% +0.4 pts
- Millennials 29–44 22,313 21.0% -0.8 pts
- Gen X 45–60 21,565 20.3% +0.9 pts
- Boomers 61–79 16,983 16.0% -1.2 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Louisiana, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.4% of the people living in Terrebonne Parish and men 49.6%.
- Women 50.4% Louisiana 51.1%
- Men 49.6% Louisiana 48.9%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Terrebonne Parish
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Terrebonne Parish has a the economy index of C, which means it is somewhat prosperous.
| Metric | Terrebonne Parish | Louisiana Avg | U.S. Average |
|---|---|---|---|
| Median household income | $64,594 | $60,934 | $80,455 |
| Income growth (%/yr) | 3.70% | 3.69% | 4.80% |
| Unemployment rate | 4.7% | 6.2% | 5.2% |
The median household income in Terrebonne Parish is about 6% higher than in Louisiana.
Housing
| Metric | Terrebonne Parish | Louisiana Avg | U.S. Average |
|---|---|---|---|
| Median home price | $202,083 | $170,446 | $248,835 |
| Median rent | $1,065 | $1,063 | $1,407 |
| Homeownership rate | 75.3% | 67.4% | 65.2% |
The median home price in Terrebonne Parish is about 15.8 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,065 per month for that long.
Commute Time & Mobility
Commuters in Terrebonne Parish spend about 37 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 153 hours, about 6.4 full days, spent commuting.
| Metric | Terrebonne Parish | Louisiana Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 18.4 | 21.3 | 22.4 |
| Round-trip commute (min) | 36.7 | 42.5 | 44.8 |
| Yearly time spent (hours) | 153 | 177 | 187 |
| Estimated yearly cost | $4,741 | $5,493 | $5,790 |
| Work from home | 3.3% | 8.1% | 15.0% |
| Highway traffic (vehicles/day) | 6,642 | 8,275 | 8,813 |
| Local road traffic (vehicles/day) | 2,152 | 1,164 | 1,355 |
Fastest commutes among counties in
Louisiana:
East Carroll Parish (11.4 min), Madison Parish (13.1 min), St. Mary Parish (15.5 min).
Slowest:
West Feliciana Parish (32.8 min), East Feliciana Parish (32.8 min), St. Helena Parish (32.4 min).
The average commute time in Terrebonne Parish is 18 minutes, shorter than the 21 minutes in Louisiana.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Terrebonne Parish has a education index of F, which means it scores poorly in education.
| Metric | Terrebonne Parish | Louisiana Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 16.4% | 24.0% | 31.6% |
| Average household size | 2.52 | 2.49 | 2.53 |
Highest education index among counties in
Louisiana:
Orleans Parish (0.3), East Baton Rouge Parish (0.3), St. Tammany Parish (0.3).
Lowest:
East Carroll Parish (0.1), Assumption Parish (0.2), Evangeline Parish (0.2).
Health
Terrebonne Parish has a health index of C, which means it is somewhat healthy.
| Metric | Terrebonne Parish | Louisiana Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 74.7 | 75.1 | 78.3 |
| Self-rated poor health | 20.9% | 22.3% | 16.3% |
| Smokers | 24.1% | 23.9% | 19.0% |
Highest health index among counties in
Louisiana:
St. Tammany Parish (0.8), Ascension Parish (0.8), Vernon Parish (0.8).
Lowest:
East Carroll Parish (0.7), Madison Parish (0.7), Tensas Parish (0.7).
Terrebonne Parish, LA Compared With Nearby Counties
Terrebonne Parish, LA is the largest of the 5 counties compared here, 106,185 residents against a local median of 49,612. The measure that sets Terrebonne Parish, LA apart most is commute: 18.4 min, 19% below the local median of 22.6 min. That is the better end of the local range on this measure.
The counties themselves spread 11.7 min on commute, so Terrebonne Parish, LA sits at one end of an already wide local range rather than apart from it. Terrebonne Parish, LA has the 2nd lowest commute of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Terrebonne Parish, LA | 106,185 | $64,594 #2/5 | $202,083 #3/5 | 18.4 min #2/5 |
| Lafourche Parish, LA | 96,166 | $64,087 | $245,587 | 21.8 min |
| Assumption Parish, LA | 20,480 | $52,234 | $116,945 | 27.2 min |
| St. Mary Parish, LA | 47,828 | $53,303 | $213,709 | 15.5 min |
| St. Charles Parish, LA | 51,396 | $81,548 | $194,058 | 23.3 min |
Frequently Asked Questions
Common questions about Terrebonne Parish, Louisiana.
How big is Terrebonne Parish, Louisiana by population?
About 106,185 people live in Terrebonne Parish, Louisiana, in 42,126 households of 2.5 people on average. The median age is 35.9, close to the U.S. median of 37.3.
Is Terrebonne Parish, Louisiana urban or rural?
Averaged over its land area, Terrebonne Parish, Louisiana has 51 people per square mile, a density typical of rural areas. That is about 59% of the U.S. average of 86.
Is Terrebonne Parish, Louisiana an affordable place to live?
The median home costs 3.1 times the median household income ($202,083 against $64,594), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,065 a month takes about 20% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How educated are people in Terrebonne Parish, Louisiana?
16.4% of adults in Terrebonne Parish, Louisiana hold a bachelor's degree or higher (about 1 in 6), well below the U.S. share of 31.6%.
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