Iberia Parish area

Population and density of Iberia Parish

The Census Bureau estimates that 66,846 people lived in Iberia Parish on July 1, 2025. That ranks #829 of 3,222 county equivalents nationally and #17 of 64 in Louisiana. Since the April 1, 2020 estimates base of 70,280, the population has declined by 3,434 (−4.9%), compared with −0.9% for Louisiana as a whole.

With 574.7 square miles of land, that is 116 people per square mile (45 per km²), placing Iberia Parish #899 nationally for density and #17 in Louisiana. The median county equivalent has 47 people per square mile; the Louisiana median is 48. Put another way, there are about 5.5 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 Iberia Parish

4 incorporated places lie at least partly in Iberia Parish. Together they are home to 32,230 people (48.2%); the other 34,616 (51.8%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is New Iberia city, with 26,533 residents in the county.

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

Metropolitan area

Iberia Parish is a central county of the New Iberia, LA Micropolitan Statistical Area. Iberia Parish is the area’s only county equivalent, so the micro area has the same 574.7 square miles of land. By combined land it ranks #370 of 542 micropolitan areas, and #126 by population. It belongs to the Lafayette-New Iberia-Opelousas, LA Combined Statistical Area.

ZIP codes

10 ZIP Code Tabulation Areas have land in Iberia Parish; 6 of them have most of their land inside the county, and the others mainly cover neighboring areas.

70513705187052870533705447055270560705637058270592

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 Iberia Parish

Iberia Parish shares a land border with 6 county equivalents. It has more land than 3 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, Iberia Parish forms a block of 4,273 mi² of land, of which it holds 13.5%.

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

Iberia Parish has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.8 times as much. Louisiana’s county land could hold about 75 areas the size of Iberia Parish.

Another way to picture it: the same land area would fill a square about 24 miles (38.6 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 Iberia Parish?

Iberia Parish has more land than 1,489 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 Iberia Parish at #733 nationally by total area, 1,000 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 44.8%, compared with a national county-equivalent median of 1.2% — 43.6 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 Iberia 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.