McNary, LA has a population of 153 and is the 25,572nd largest city in the United States. The population density is 83 per sq mi which is 6% lower than the Louisiana average and 8% lower than the national average. The median age in McNary is 50 which is approximately 38% higher than the Louisiana average of 36. In McNary, 59% of the population over 15 years of age are married, 86% speak English and 1% speak Spanish. 81% of McNary residents were born in Louisiana, 18% were born out of state, 1% were born outside of the United States and 0% were foreign born.