Loudon Flag

Loudon

County Seat:
No
Area (mi²):
1.808
State:
New Hampshire

Loudon is a CDP located in Merrimack County, New Hampshire. Loudon has a 2025 population of 678. Loudon is currently growing at a rate of 1.19% annually but its population has decreased by -18.31% since the most recent census, which recorded a population of 830 in 2020.

The average household income in Loudon is $109,823 with a poverty rate of 6.64%.The median age in Loudon is 72.8 years: 70.5 years for males, and 73.3 years for females.

678
Total Population
375
Density (mi²)
8 1.19%
Growth

Loudon Population

Demographics

Economics and Income Statistics

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)