Wisner, LA has a population of 894 and is the 15,848th largest city in the United States. The population density is 1,123 per sq mi which is 1166% higher than the Louisiana average and 1139% higher than the national average. The median age in Wisner is 51 which is approximately 40% higher than the Louisiana average of 36. In Wisner, 58% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 82% of Wisner residents were born in Louisiana, 18% were born out of state, 0% were born outside of the United States and 0% were foreign born.