Plaquemines Parish, Louisiana Demographics 2026

Population Overview

Plaquemines Parish is located in Louisiana with a total population of 23,070. It is the 38th most populous county out of 64 in Louisiana.

Age Demographics

The median age in Plaquemines Parish is 36.8 years. This is 3% lower than the state median of 37.8 years.

Economy, Income & Housing

The median household income in Plaquemines Parish is $82,874. This is 38% higher than the state median of $60,023. Compared to the national median of $78,538, household income here is 6% higher. The poverty rate stands at 13.4%. This is 29% lower than the state poverty rate of 18.9%. The unemployment rate is 4.5%. This is 29% lower than the state rate of 6.3%. The median home value is $275,800. Housing costs are 32% higher than the state median of $208,700. The home-value-to-income ratio is 3.3x. 73.9% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 67.3%.

Race & Ethnicity

The largest racial or ethnic group in Plaquemines Parish is White (non-Hispanic), making up 60.2% of the population. Black or African American residents account for 20.9%. The Asian population is significantly higher than the state average (4.0% vs 1.7%).

Education

19.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 25% lower than the state rate of 26.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 85.6%.