Isabel is located in Fulton County, Illinois. Isabel has a 2025 population of 170 . Isabel is currently declining at a rate of -0.58% annually and its population has decreased by -2.3% since the most recent census, which recorded a population of 174 in 2020.
The median age in Isabel is 52.7 years: 52.9 years for males, and 36.7 years for females. For every 100 females there are 74.7 males.
Data after 2023 is projected based on recent change
The racial composition of Isabel includes 98.27% White, and smaller percentages for Two or more races and multiracial populations.
White (98.27%)
Two or more races (1.73%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 170 | 98.27% |
| Two or more races | 3 | 1.73% |
Married
Widowed
Divorced
Separated
Never Married