| Place Name | Brookfield |
| Place Type | City |
| ZIP Code(s) | 64628 |
| GEOID | 2908650 |
| County | Linn County |
| Area Code(s) | 660 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 4,161 |
| Population Growth Rate (2010-19) | -9.49% |
| Majority Ethnicity | White 94.85% |
| US Congressional District(s) | Missouri 6th |
| State House Districts | 7 |
| State Senate Districts | 18 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.85% |
| African American | 1.57% |
| Hispanic | 0.17% |
| Asian | 0.67% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.74% |