Alleghany Flag

Alleghany

County Seat:
No
Area (mi²):
0.349

Alleghany is a CDPlocated in Sierra County, California. Alleghany has a 2026 population of 43. Alleghany is currently growing at a rate of 7.5% annually but its population has decreased by -56.57% since the most recent census, which recorded a population of 99 in 2020.

43
Total Population
123
Density (mi²)
3 7.5%
Growth

Alleghany Population

Alleghany Population

Year↓
Population
Growth
Annual Change
20264337.5%
20254025.26%
202335-28-44.44%
202263-30-32.26%
202193-6-6.06%
2020992126.92%
20197848160%
201830-100-76.92%
2017130-4-2.99%
20161341815.52%
201511610.87%
2014115-20-14.81%
20131356387.5%
201272710.77%
20116500%

Median Age

Overall:0 years
Female:0 years
Male:0 years

Alleghany Adults

There are 19 adults, (19 of whom are seniors) in Alleghany.

Sex Ratio

Female: 10 (52.6%)
Male: 9 (47.4%)

Demographics

The racial composition of Alleghany includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population↓
Percentage (of total)
White19100%
Race
Population↓
Percentage (of total)
White19100%

Alleghany Marital Status

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)