| Place Name | Marine on St. Croix |
| Place Type | City |
| ZIP Code(s) | 54020 55047 |
| County | Washington County |
| Area Code(s) | 651 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 609 |
| Population Growth Rate (2010-19) | -3.63% |
| Majority Ethnicity | White 94.59% |
| Metro/Micro Stats Area | Minneapolis-St. Paul-Bloomington, MN-WI |
| US Congressional District(s) | Minnesota 6th |
| State House Districts | 39A |
| State Senate Districts | 39 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.59% |
| African American | 0% |
| Hispanic | 5.11% |
| Asian | 0.15% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.15% |