| Place Name | Lake Ronkonkoma |
| Place Type | Census Designated Place |
| ZIP Code(s) | 11720 11741 11755 11767 11779 |
| County | Suffolk County |
| Area Code(s) | 631,934 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 20,536 |
| Population Growth Rate (2010-19) | -7.62% |
| Majority Ethnicity | White 78.99% |
| Metro/Micro Stats Area | New York-Newark-Jersey City, NY-NJ-PA |
| US Congressional District(s) | New York 1st |
| State Assembly Districts | 5,8 |
| State Senate Districts | 2,3 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 78.99% |
| African American | 2.91% |
| Hispanic | 0.09% |
| Asian | 5.12% |
| Native American | 0.03% |
| Hawaiin/Pacific Islander | 12.86% |