St. Charles Flag

St. Charles

County Seat:
No
Area (mi²):
0.733
State:
Idaho

St. Charles is a city located in Bear Lake County, Idaho. St. Charles has a 2026 population of 190. St. Charles is currently growing at a rate of 2.7% annually and its population has increased by 15.15% since the most recent census, which recorded a population of 165 in 2020.

The median age in St. Charles is 34.1 years: 50.8 years for males, and 19.9 years for females. For every 100 females there are 126.6 males.

190
Total Population
259
Density (mi²)
5 2.7%
Growth

St. Charles Population

St. Charles Population

Year ↓
Population
Growth
Annual Change
202619052.7%
202518500%
2024185-3-1.6%
202318852.73%
202218395.17%
202117495.45%
202016500%
201915332%
201815021.35%
201714832.07%
201614510.69%
2015144-2-1.37%
2014146-2-1.35%
201314832.07%
201214510.69%
2011144139.92%
201014310.7%

Median Age

Overall: 34.1 years
Female: 19.9 years
Male: 50.8 years

St. Charles Adults

There are 119 adults, (42 of whom are seniors) in St. Charles.

Sex Ratio

Female: 64 (44.1%)
Male: 81 (55.9%)

Demographics

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

Population by Race

Race
Population ↓
Percentage (of total)
White145100%
Race
Population ↓
Percentage (of total)
White145100%

St. Charles 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)