Alleghany Flag

Alleghany

County:
Sierra County
County Seat:
No
Area (mi²):
0.349
State:
California

Alleghany is a CDP located in Sierra County, California. Alleghany has a 2025 population of 79. Alleghany is currently growing at a rate of 6.76% annually but its population has decreased by -20.2% since the most recent census, which recorded a population of 99 in 2020.

79
Total Population
226
Density (mi²)
5 6.76%
Growth

Alleghany Population

Alleghany Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

Race
Population
Percentage (of total)
White35100%

Alleghany Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

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)