Hanover, NM has a population of 174 and is the 25,056th largest city in the United States. The population density is 125 per sq mi which is 626% higher than the New Mexico average and 37% higher than the national average. The median age in Hanover is 15 which is approximately 60% lower than the New Mexico average of 37. In Hanover, 12% of the population over 15 years of age are married, 66% speak English and 25% speak Spanish. 82% of Hanover residents were born in New Mexico, 18% were born out of state, 0% were born outside of the United States and 0% were foreign born.