Ridgefield is a CDP located in McHenry County, Illinois. Ridgefield has a 2026 population of 268. Ridgefield is currently growing at a rate of 6.35% 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 Ridgefield is 45.5 years: 0 years for males, and 23.8 years for females. For every 100 females there are 24.9 males.
Data after 2023 is projected based on recent change
Overall: 45.5 years
Female: 23.8 years
Male: 0 years
There are 221 adults, (43 of whom are seniors) in Ridgefield.
Female: 177 (80.1%)
Male: 44 (19.9%)
The racial composition of Ridgefield includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 221 | 100% |