| Place Name | Knappa |
| Place Type | Census Designated Place |
| ZIP Code(s) | 97103 |
| County | Clatsop County |
| Area Code(s) | 503,971 |
| Timezone | Pacific Standard Time (PST) |
| Population (2022) | 1,033 |
| Majority Ethnicity | White 98.26% |
| Metro/Micro Stats Area | Astoria, OR |
| US Congressional District(s) | Oregon 1st |
| State House Districts | 32 |
| State Senate Districts | 16 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.26% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.74% |