Plaquemines Parish, Louisiana
Located in Louisiana, Plaquemines Parish has a population of 22,803 residents and a median age of 37.5 years, making it the #1,737 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 12.9%. The median home value is $282,900, and the median household income is $86,315, which is 15% above the national median.
Demographics
Plaquemines Parish has a population of 22,803, making it the #1,737 most populous county in the US. The median age is 37.5 years, which is 3.6% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Plaquemines Parish is $86,315, ranking #393 out of 3,222 counties — 14.9% above the national median. The poverty rate is 12.9% and unemployment stands at 4.0%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Plaquemines Parish is $282,900 (+0.4% vs national). Renters pay a median of $1,573/mo and the homeownership rate is 75.8%.
Median Home Value Trend
Rankings →Household Type
Education
In Plaquemines Parish, 21.5% of adults age 25+ hold a bachelor's degree or higher, which is 36.2% below the national average, ranking #1,731 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Plaquemines Parish is 75.8 years. 21.6% of adults report poor or fair health and 8.5% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
20.0% of adults in Plaquemines Parish smoke , 39.8% are obese , and 20.2% report excessive drinking. The drug overdose death rate is 53.7 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Plaquemines Parish is 6.2 per 100,000 and the suicide rate is 15.5 per 100,000. Motor vehicle deaths occur at a rate of 9.9 per 100,000.
Suicide Rate Trend
Families & Children
19.5% of children in Plaquemines Parish live in poverty . The teen birth rate is 15.3 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Plaquemines Parish is 64.9%. The mean commute time is 29.0 min, which is 5.0% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Plaquemines Parish voted Republican with a margin of 38.0%. The vote was 30.4% Dem / 68.4% Rep. Compared to 2020, the margin shifted 1.7 toward Republicans .
Vote Share Over Time
About Plaquemines Parish, Louisiana
Plaquemines Parish, Louisiana has a total population of 22,803, making it the 1,737th most populous county in the United States. The median age in Plaquemines Parish is 37.5 years, which is 3.6% below the national median of 38.9 years.
The median household income in Plaquemines Parish is $86,315, which ranks #393 of 3,222 counties nationwide. This is 14.9% above the national median of $75,149. The poverty rate is 12.9%, higher than the national rate of 12.6%. The unemployment rate stands at 4.0%.
The median home value in Plaquemines Parish is $282,900, 0.4% above the national median. Renters in Plaquemines Parish pay a median gross rent of $1,573 per month. The homeownership rate is 75.8%, compared to the national rate of 64.4%.
In Plaquemines Parish, 21.5% of residents aged 25 and older hold a bachelor's degree or higher, 36.2% below the national average of 33.7%. Health insurance coverage stands at 93.5% of the population. The average commute time for workers is 29.0 min.
Plaquemines Parish is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 58.8% of the population, followed by Black (non-Hispanic) (20.4%) and Hispanic or Latino (9.8%).
All data for Plaquemines Parish, Louisiana comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.