Terrebonne County Demographics

A map of Terrebonne County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	67,699	68,802	63.8%	62.8%
Black	19,434	21,059	18.3%	19.2%
Hispanic	7,696	7,358	7.2%	6.7%
Native American/Other	5,123	6,146	4.8%	5.6%
Multiracial	5,073	4,921	4.8%	4.5%
Asian	1,161	1,294	1.1%	1.2%

Terrebonne County, Louisiana has an estimated population of 106,186, a decrease from the 109,580 recorded in the 2020 Census. The population is 63.8% White, 18.3% Black, 7.2% Hispanic, 4.8% Native American/Other, 4.8% Multiracial, and 1.1% Asian. This demographic dot map shows the population of Terrebonne County, with one dot drawn for each person counted by the Census, color-coded by race.

Terrebonne has become slightly less racially diverse since the 2020 Census. It is less diverse than Louisiana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Terrebonne County, that probability was 55.9% in 2020 and 55.0% in the most recent ACS estimates.

Terrebonne County is ranked the 14th most populous county in Louisiana, out of 64 counties. Terrebonne County was ranked the 14th most populous county in the 2020 Census.

Terrebonne County's White Population

67,699 residents of Terrebonne County, or 63.8% of the population, identify as White. The share of White residents in Terrebonne County is higher than in Louisiana overall, where 55.7% of the population is White. Terrebonne County ranks 28th statewide in terms of White residents as a share of the population, out of 64 counties.

Since the 2020 Census, Terrebonne County's White population has declined by an estimated 1.6%. White residents' share of Terrebonne County's population has increased from 62.8% to 63.8%.

Terrebonne County is more White than neighboring St. James County (49.3% White), St. Mary County (53.4% White), and St. Charles County (62.5% White). Terrebonne County is less White than neighboring Lafourche County (74.2% White), and Assumption County (63.9% White).

Terrebonne County's Black Population

19,434 residents of Terrebonne County, or 18.3% of the population, identify as Black. The share of Black residents in Terrebonne County is considerably lower than in Louisiana overall, where 30.5% of the population is Black. Terrebonne County ranks 49th statewide in terms of Black residents as a share of the population, out of 64 counties.

Since the 2020 Census, Terrebonne County's Black population has declined by an estimated 7.7%. Black residents' share of Terrebonne County's population has decreased from 19.2% to 18.3%.

Terrebonne County is more Black than neighboring Lafourche County (12.8% Black). Terrebonne County is less Black than neighboring Assumption County (27.7% Black), St. James County (47.4% Black), St. Mary County (28.8% Black), and St. Charles County (22.1% Black).

Terrebonne County's Asian Population

1,161 residents of Terrebonne County, or 1.1% of the population, identify as Asian. The share of Asian residents in Terrebonne County is comparable to the share in Louisiana overall, where 1.7% of the population is Asian. Terrebonne County ranks 21st statewide in terms of Asian residents as a share of the population, out of 64 counties.

Since the 2020 Census, Terrebonne County's Asian population has declined by an estimated 10.3%. Asian residents' share of Terrebonne County's population has remained roughly unchanged at 1.1%.

Terrebonne County is more Asian than neighboring Lafourche County (0.6% Asian), Assumption County (0.9% Asian), St. James County (0% Asian), St. Mary County (1% Asian), and St. Charles County (0.8% Asian).

Terrebonne County's Hispanic Population

7,696 residents of Terrebonne County, or 7.2% of the population, identify as Hispanic. The share of Hispanic residents in Terrebonne County is comparable to the share in Louisiana overall, where 7.2% of the population is Hispanic. Terrebonne County ranks 16th statewide in terms of Hispanic residents as a share of the population, out of 64 counties.

Since the 2020 Census, Terrebonne County's Hispanic population has grown by an estimated 4.6%. Hispanic residents' share of Terrebonne County's population has increased from 6.7% to 7.2%.

Terrebonne County is more Hispanic than neighboring Lafourche County (5.9% Hispanic), Assumption County (4.3% Hispanic), and St. James County (2% Hispanic). Terrebonne County is less Hispanic than neighboring St. Mary County (9.8% Hispanic), and St. Charles County (8.2% Hispanic).

Terrebonne County's Native American/Other Population

5,123 residents of Terrebonne County, or 4.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Terrebonne County is slightly higher than in Louisiana overall, where 1% of the population is Native American/Other. Terrebonne County ranks 2nd statewide in terms of Native American/Other residents as a share of the population, out of 64 counties.

Since the 2020 Census, Terrebonne County's Native American/Other population has declined by an estimated 16.6%. Native American/Other residents' share of Terrebonne County's population has decreased from 5.6% to 4.8%.

Terrebonne County is more Native American/Other than neighboring Lafourche County (2.6% Native American/Other), Assumption County (0.8% Native American/Other), St. James County (0.2% Native American/Other), St. Mary County (1.8% Native American/Other), and St. Charles County (1.9% Native American/Other).

Terrebonne County's Multiracial Population

5,073 residents of Terrebonne County, or 4.8% of the population, identify as Multiracial. The share of Multiracial residents in Terrebonne County is comparable to the share in Louisiana overall, where 3.8% of the population is Multiracial. Terrebonne County ranks 5th statewide in terms of Multiracial residents as a share of the population, out of 64 counties.

Since the 2020 Census, Terrebonne County's Multiracial population has grown by an estimated 3.1%. Multiracial residents' share of Terrebonne County's population has remained roughly unchanged at 4.8%.

Terrebonne County is more Multiracial than neighboring Lafourche County (4% Multiracial), Assumption County (2.4% Multiracial), St. James County (1.1% Multiracial), and St. Charles County (4.4% Multiracial). Terrebonne County is less Multiracial than neighboring St. Mary County (5.2% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.