| Place Name | Portland Township |
| Place Type | Township |
| ZIP Code(s) | 48851 48873 48875 48894 |
| County | Ionia County |
| Area Code(s) | 517,989 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 3,942 |
| Majority Ethnicity | White 96.48% |
| Metro/Micro Stats Area | Grand Rapids-Kentwood, MI |
| US Congressional District(s) | Michigan 3rd |
| State House Districts | 87 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 96.48% |
| African American | 0.96% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.56% |