| Place Name | Marmora |
| Place Type | Census Designated Place |
| ZIP Code(s) | 08223 |
| County | Cape May County |
| Area Code(s) | 609,640 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 2,519 |
| Majority Ethnicity | White 98.95% |
| Metro/Micro Stats Area | Ocean City, NJ |
| US Congressional District(s) | New Jersey 2nd |
| State Assembly Districts | 1 |
| State Senate Districts | 1 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.95% |
| African American | 1.01% |
| Hispanic | 0% |
| Asian | 0.04% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |