Tangipahoa Parish area

Population and density of Tangipahoa Parish

The Census Bureau estimates that 141,346 people lived in Tangipahoa Parish on July 1, 2025. That ranks #482 of 3,222 county equivalents nationally and #10 of 64 in Louisiana. Since the April 1, 2020 estimates base of 133,166, the population has grown by 8,180 (+6.1%), compared with −0.9% for Louisiana as a whole.

With 791.2 square miles of land, that is 179 people per square mile (69 per km²), placing Tangipahoa Parish #682 nationally for density and #13 in Louisiana. The median county equivalent has 47 people per square mile; the Louisiana median is 48. Put another way, there are about 3.6 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 Tangipahoa Parish

8 incorporated places lie at least partly in Tangipahoa Parish. Together they are home to 41,807 people (29.6%); the other 99,539 (70.4%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Hammond city, with 24,032 residents in the county. The county seat, Amite City town, has 4,081 residents. Among places with at least 1,000 residents in 2020, Hammond city grew fastest since then (+23%).

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

Metropolitan area

Tangipahoa Parish is a central county of the Hammond, LA Metropolitan Statistical Area. Tangipahoa Parish is the area’s only county equivalent, so the metro area has the same 791.2 square miles of land. By combined land it ranks #307 of 393 metropolitan areas, and #306 by population. It belongs to the Baton Rouge-Hammond, LA Combined Statistical Area.

ZIP codes

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

7040170402704037042270433704357043670437704387044270443704447044670451704547045570456704627046570466

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 Tangipahoa Parish

Tangipahoa Parish shares a land border with 7 county equivalents, including 2 in Mississippi. It has more land than 6 of them. The largest neighbor is St. Tammany Parish (845.3 mi²) and the smallest is St. John the Baptist Parish (214.5 mi²). Together with its neighbors, Tangipahoa Parish forms a block of 4,716.6 mi² of land, of which it holds 16.8%.

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

Tangipahoa Parish has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.3 times as much. Louisiana’s county land could hold about 55 areas the size of Tangipahoa Parish.

Another way to picture it: the same land area would fill a square about 28.1 miles (45.3 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 Tangipahoa Parish?

Tangipahoa Parish has more land than 2,135 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 Tangipahoa Parish at #1,096 nationally by total area, 9 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 6.3%, compared with a national county-equivalent median of 1.2% — 5.1 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 Tangipahoa 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.