Pearl River, LA has a population of 2,504 and is the 9,847th largest city in the United States. The population density is 680 per sq mi which is 666% higher than the Louisiana average and 650% higher than the national average. The median age in Pearl River is 39 which is approximately 6% higher than the Louisiana average of 36. In Pearl River, 57% of the population over 15 years of age are married, 95% speak English and 4% speak Spanish. 74% of Pearl River residents were born in Louisiana, 26% were born out of state, 0% were born outside of the United States and 0% were foreign born.