Eunice, LA has a population of 10,199 and is the 3,888th largest city in the United States. The population density is 1,985 per sq mi which is 2138% higher than the Louisiana average and 2091% higher than the national average. The median age in Eunice is 37 which is approximately 1% higher than the Louisiana average of 36. In Eunice, 49% of the population over 15 years of age are married, 89% speak English and 2% speak Spanish. 90% of Eunice residents were born in Louisiana, 9% were born out of state, 0% were born outside of the United States and 1% were foreign born.