| Place Name | Niagara |
| Place Type | City |
| ZIP Code(s) | 54151 |
| County | Marinette County |
| Area Code(s) | 535,715 |
| Timezone | (UTC) |
| Population (2022) | 1,607 |
| Population Growth Rate (2010-19) | -1.35% |
| Majority Ethnicity | White 98.77% |
| Metro/Micro Stats Area | Marinette, WI-MI |
| US Congressional District(s) | Wisconsin 8th |
| State Assembly Districts | 36 |
| State Senate Districts | 12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.77% |
| African American | 0.36% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.87% |