Acadia Parish area

Population and density of Acadia Parish

The Census Bureau estimates that 57,032 people lived in Acadia Parish on July 1, 2025. That ranks #942 of 3,222 county equivalents nationally and #19 of 64 in Louisiana. Since the April 1, 2020 estimates base of 57,571, the population has declined by 539 (−0.9%), compared with −0.9% for Louisiana as a whole.

With 655.2 square miles of land, that is 87 people per square mile (34 per km²), placing Acadia Parish #1,094 nationally for density and #22 in Louisiana. The median county equivalent has 47 people per square mile; the Louisiana median is 48. Put another way, there are about 7.4 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 Acadia Parish

10 incorporated places lie at least partly in Acadia Parish. Together they are home to 25,750 people (45.2%); the other 31,282 (54.8%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Crowley city, with 11,223 residents in the county.

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Acadia Parish. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Acadia Parish is an outlying county of the Lafayette, LA Metropolitan Statistical Area. Its 4 county equivalents have 423,758 residents on 2,833.7 square miles of land; Acadia Parish accounts for 23.1% of the land and 13.5% of the residents. By combined land it ranks #104 of 393 metropolitan areas, and #133 by population. It belongs to the Lafayette-New Iberia-Opelousas, LA Combined Statistical Area.

ZIP codes

15 ZIP Code Tabulation Areas have land in Acadia Parish; 12 of them have most of their land inside the county, and the others mainly cover neighboring areas.

705157051670525705267052970531705347053570537705437054670556705597057870583

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 Acadia Parish

Acadia Parish shares a land border with 5 county equivalents. It has more land than 2 of them. The largest neighbor is Vermilion Parish (1,172.1 mi²) and the smallest is Lafayette Parish (268.8 mi²). Together with its neighbors, Acadia Parish forms a block of 4,333.5 mi² of land, of which it holds 15.1%.

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

Acadia Parish has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.6 times as much. Louisiana’s county land could hold about 66 areas the size of Acadia Parish.

Another way to picture it: the same land area would fill a square about 25.6 miles (41.2 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 Acadia Parish?

Acadia Parish has more land than 1,785 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 Acadia Parish at #1,551 nationally by total area, 114 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 0.3%, compared with a national county-equivalent median of 1.2% — 0.8 percentage points lower. 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 Acadia 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.