Terrebonne Parish area

Population and density of Terrebonne Parish

The Census Bureau estimates that 104,163 people lived in Terrebonne Parish on July 1, 2025. That ranks #609 of 3,222 county equivalents nationally and #14 of 64 in Louisiana. Since the April 1, 2020 estimates base of 109,593, the population has declined by 5,430 (−5%), compared with −0.9% for Louisiana as a whole.

With 1,229.9 square miles of land, that is 85 people per square mile (33 per km²), placing Terrebonne Parish #1,114 nationally for density and #23 in Louisiana. The median county equivalent has 47 people per square mile; the Louisiana median is 48. Put another way, there are about 7.6 acres of land per resident.

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Terrebonne Parish

1 incorporated place lies at least partly in Terrebonne Parish. Together they are home to 31,735 people (30.5%); the other 72,428 (69.5%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Houma city, with 31,735 residents in the county.

Metropolitan area

Terrebonne Parish is a central county of the Houma-Bayou Cane-Thibodaux, LA Metropolitan Statistical Area. Its 2 county equivalents have 199,668 residents on 2,299.6 square miles of land; Terrebonne Parish accounts for 53.5% of the land and 52.2% of the residents. By combined land it ranks #141 of 393 metropolitan areas, and #238 by population.

ZIP codes

13 ZIP Code Tabulation Areas have land in Terrebonne Parish; 11 of them have most of their land inside the county, and the others mainly cover neighboring areas.

70301703437034470352703537035670359703607036370364703777039570397

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Terrebonne Parish

Terrebonne Parish shares a land border with 3 county equivalents. It has more land than every one of them. The largest neighbor is Lafourche Parish (1,069.7 mi²) and the smallest is Assumption Parish (344 mi²). Together with its neighbors, Terrebonne Parish forms a block of 3,202.1 mi² of land, of which it holds 38.4%.

How big is Terrebonne Parish compared with U.S. states?

Terrebonne Parish has more land than 1 of the 50 states. It is about 1.2 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.6 times as much land (1,948.6 mi²). Louisiana’s county land could hold about 35 areas the size of Terrebonne Parish.

Another way to picture it: the same land area would fill a square about 35.1 miles (56.4 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Terrebonne Parish?

Terrebonne Parish has more land than 2,725 of the other 3,221 county equivalents in the dataset.

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Terrebonne Parish at #305 nationally by total area, 192 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.

Its water share is 40.9%, compared with a national county-equivalent median of 1.2% — 39.8 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Terrebonne Parish in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.