Contoocook, NH has a population of 1,773 and is the 11,724th largest city in the United States. The population density is 770 per sq mi which is 445% higher than the New Hampshire average and 750% higher than the national average. The median age in Contoocook is 39 which is approximately 9% lower than the New Hampshire average of 42. In Contoocook, 55% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 38% of Contoocook residents were born in New Hampshire, 55% were born out of state, 1% were born outside of the United States and 6% were foreign born.