The richest parish in Louisiana is St. Tammany Parish. The median household income in St. Tammany Parish is $85,512, which is significantly higher than the statewide median of $45,146. The poverty rate in St. Tammany Parish is also lower than the statewide average, at 8.4 percent compared to 19.7 percent.
There are a number of factors that contribute to St. Tammany Parish's wealth. First, the parish has a large and diverse economy that includes a strong tourism sector as well as manufacturing and healthcare industries. Second, the parish has a highly educated workforce; over 38 percent of residents have a bachelor's degree or higher compared to just 24 percent statewide. Finally, property values in St..Tammany Parish are among the highest in the state, with a median home value of $261,100 compared to $149,500 statewide