Alton Flag

Alton

County:
Belknap County
County Seat:
No
Area (mi²):
0.468
State:
New Hampshire

Alton is a CDP located in Belknap County, New Hampshire. Alton has a 2026 population of 396. Alton is currently declining at a rate of -1.74% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median age in Alton is 58.4 years: 62.6 years for males, and 43.4 years for females. For every 100 females there are 59.7 males.

396
Total Population
846
Density (mi²)
-7 -1.74%
Growth

Alton Population

Alton Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026396-7-1.74%
2025403-6-1.47%

Median Age

Overall: 58.4 years
Female: 43.4 years
Male: 62.6 years

Alton Adults

There are 269 adults, (44 of whom are seniors) in Alton.

Sex Ratio

Female: 176 (62.6%)
Male: 105 (37.4%)

Demographics

The racial composition of Alton includes 99.64% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White28099.64%
Two or more races10.36%
Race
Population ↓
Percentage (of total)
White28099.64%
Two or more races10.36%

Alton Marital Status

Nearby Cities

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)