Flagg township is located in Ogle County, Illinois. Flagg township has a 2026 population of 13,579. Flagg township is currently growing at a rate of 0.88% annually and its population has increased by 1.77% since the most recent census, which recorded a population of 13,343 in 2020.
The median household income in Flagg township is $74,423 with a poverty rate of 7.06%. The median age in Flagg township is 37.1 years: 36.2 years for males, and 39.9 years for females. For every 100 females there are 103.2 males.
Data after 2023 is projected based on recent change
Overall: 37.1 years
Female: 39.9 years
Male: 36.2 years
There are 10,473 adults, (2,217 of whom are seniors) in Flagg township.
Female: 6,540 (49.2%)
Male: 6,747 (50.8%)
The racial composition of Flagg township includes 72.73% White, 5.83% other race, 3.17% Black or African American, and smaller percentages for Native American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 9,664 | 72.73% |
| Two or more races | 2,171 | 16.34% |
| Other race | 775 | 5.83% |
| Black or African American | 421 | 3.17% |
| Native American | 141 | 1.06% |
| Asian | 115 | 0.87% |
Flagg township 's average per capita income is $46,932. Household income levels show a median of $74,423. The poverty rate stands at 7.06%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $105,344 | - |
| Families | $88,641 | $104,388 |
| Households | $74,423 | $89,608 |
| Non Families | $41,066 | $53,390 |
Average Income
Median Household Income
Poverty Rate