Princeton is a city located in Bureau County, Illinois. Princeton has a 2026 population of 7,577. It is also the county seat of Bureau County. Princeton is currently declining at a rate of -0.59% annually and its population has decreased by -3.43% since the most recent census, which recorded a population of 7,846 in 2020.
The median household income in Princeton is $61,946 with a poverty rate of 12.7%. The median age in Princeton is 46 years: 41.6 years for males, and 50 years for females. For every 100 females there are 96.7 males.
Data after 2023 is projected based on recent change
Overall: 46 years
Female: 50 years
Male: 41.6 years
There are 6,530 adults, (2,049 of whom are seniors) in Princeton.
Female: 4,054 (50.8%)
Male: 3,921 (49.2%)
The racial composition of Princeton includes 89.15% White, and smaller percentages for Asian, other race, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 7,110 | 89.15% |
| Two or more races | 582 | 7.3% |
| Asian | 102 | 1.28% |
| Other race | 97 | 1.22% |
| Black or African American | 84 | 1.05% |
Princeton 's average per capita income is $44,756. Household income levels show a median of $61,946. The poverty rate stands at 12.7%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $102,582 | - |
| Families | $82,375 | $96,279 |
| Households | $61,946 | $79,256 |
| Non Families | $42,306 | $58,184 |
Average Income
Median Household Income
Poverty Rate