Assumption Parish, Louisiana
Assumption Parish: parish in Louisiana, United States
About
Assumption Parish is a county located in the U.S. state of Louisiana. As of the 2010 census, the population was 23,421 and a population density of 25 people per km². After 10 years in 2020 county had an estimated population of 21,621 inhabitants. Its county seat is Napoleonville. The county was created 219 years ago in 1807.
County Snapshot
Assumption Parish at a glance
Assumption Parish currently has 6 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
6
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Louisiana counties
64
Open related pagesLargest city
Pierre PartPopulation 3,169
Top linked places
Quick Facts about Assumption Parish
| Population | 21,621 (2020) |
| Country | United States of America |
| State | Louisiana (United States) |
| Area | 944 km2 |
| Water as percent of area | 7.1% |
| Land as percent of area | 92.9% |
| Latitude & Longitude | 29.9008,-91.0626 |
| Named for | Assumption of Mary |
| Altitude | 3 feet / 1 meters |
| Capital | Napoleonville |
| Establishment | March 31, 1807 |
| Time Zone | America/Chicago |
| Local time | 20:31:41 (10th April 2026) |
| Density | 23 Pop. per km² as of 2020 |
| Population growth | -8.33% (2010-2020) |
| Weather | 80℉ Chance Showers And Thunderstorms 7-days weather |
Geography
Assumption Parish is located at 29°54'3"N 91°3'45"W (29.9007700, -91.0625900). It has 7 neighbors: Ascension Parish, Iberia Parish, Iberville Parish, Lafourche Parish, Saint James Parish, Saint Martin Parish and Terrebonne Parish.
Assumption Parish map
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Assumption Parish Populated Places
Cities, towns, neighborhoods & other populated places in Assumption Parish.
| City Name | Population | Title |
|---|---|---|
| Pierre Part | 3,169 | City in Louisiana, United States of America |
| Belle Rose | 1,902 | City in Louisiana, United States of America |
| Labadieville | 1,854 | City in Louisiana, United States of America |
| Supreme | 1,052 | Human settlement in Louisiana, United States of America |
| Rosedale | 729 | Village in Louisiana, United States |
| Napoleonville | 575 | Town |
Weather
A chance of showers and thunderstorms. Partly sunny. High near 80, with temperatures falling to around 78 in the afternoon. Southeast wind around 10 m...
7-Day ForecastOfficial website of Assumption Parish
Official Website- Napoleonville
Demographics
According to census records, the population of Assumption Parish decreased by 8.33% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 23,421 | - | census |
| 2011 | 23,185 | -1.02% | estimation process |
| 2012 | 23,072 | -0.49% | estimation process |
| 2013 | 23,199 | 0.55% | estimation process |
| 2014 | 23,047 | -0.66% | estimation process |
| 2015 | 22,898 | -0.65% | estimation process |
| 2016 | 22,756 | -0.62% | estimation process |
| 2017 | 22,568 | -0.83% | estimation process |
| 2018 | 22,279 | -1.3% | estimation process |
| 2019 | 21,891 | -1.77% | estimation process |
| 2020 | 21,621 | -1.25% | estimation process |
People born in Assumption Parish (1)
United States federal judge Charlton Reid Beattie was born in Assumption Parish
Louisiana Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| East Baton Rouge Parish | 439,729 | Parish in Louisiana, United States |
| Jefferson Parish | 432,346 | Parish in Louisiana, United States |
| Orleans Parish | 389,476 | New Orleans consolidated city-parish in Louisiana, United States |
| New Orleans | 389,476 | The most populous city in Louisiana and the center of the New Orleans metropolitan area. |
| Saint Tammany Parish | 263,446 | Parish in Louisiana, United States of America |
| Lafayette Parish | 246,518 | Parish in Louisiana, United States |
| Caddo Parish | 237,479 | Parish in Louisiana, United States |
| Baton Rouge | 219,052 | The capital of Louisiana. |
| Calcasieu Parish | 203,310 | Parish in Louisiana, United States |
| Shreveport | 184,786 | The second most populous city in Louisiana. |
| Ouachita Parish | 152,439 | Parish in Louisiana, United States |
| Livingston Parish | 143,737 | Parish in Louisiana, United States |
| Metairie Terrace | 142,489 | A census-designated place in Jefferson Parish, Louisiana. |
| Metairie | 138,481 | The most populous suburb of New Orleans, Louisiana. |
| Tangipahoa Parish | 136,765 | Parish in Louisiana, United States |
| Ascension Parish | 128,665 | Parish in Louisiana, United States |