| Place Name | Nikiski |
| Place Type | Census Designated Place |
| ZIP Code(s) | 99611 |
| County | Kenai Peninsula Borough |
| Area Code(s) | 907 |
| Timezone | Alaska Daylight Time (AKDT) |
| Population (2022) | 4,708 |
| Population Growth Rate (2010-19) | -0.82% |
| Majority Ethnicity | White 83.29% |
| US Congressional District(s) | Alaska At-Large |
| State House Districts | 29 |
| State Senate Districts | O |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 83.29% |
| African American | 0.65% |
| Hispanic | 7.79% |
| Asian | 2.66% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.61% |