| Place Name | Northfield Township |
| Place Type | Township |
| County | Cook County |
| Area Code(s) | 224,847 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 90,794 |
| Majority Ethnicity | White 76.43% |
| Metro/Micro Stats Area | Chicago-Naperville-Elgin, IL-IN-WI |
| US Congressional District(s) | Illinois 10thIllinois 9th |
| State House Districts | 17,18,57,58 |
| State Senate Districts | 9,29 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 76.43% |
| African American | 1.65% |
| Hispanic | 0.05% |
| Asian | 15.83% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.04% |