Annandale, MN has a population of 3,298 and is the 8,334th largest city in the United States. The population density is 1,089 per sq mi which is 1660% higher than the Minnesota average and 1102% higher than the national average. The median age in Annandale is 35 which is approximately 8% lower than the Minnesota average of 38. In Annandale, 64% of the population over 15 years of age are married, 90% speak English and 10% speak Spanish. 79% of Annandale residents were born in Minnesota, 12% were born out of state, 1% were born outside of the United States and 8% were foreign born.