| Place Name | McNair |
| Place Type | Census Designated Place |
| ZIP Code(s) | 20041 20170 20171 |
| County | Fairfax County |
| Area Code(s) | 571,703 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 17,120 |
| Population Growth Rate (2010-19) | 23.33% |
| Majority Ethnicity | Asian 41.2% |
| Metro/Micro Stats Area | Washington-Arlington-Alexandria, DC-VA-MD-WV |
| US Congressional District(s) | Virginia 11th |
| House of Delegates Districts | 36,86 |
| State Senate Districts | 33 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 37.09% |
| African American | 10.68% |
| Hispanic | 0.06% |
| Asian | 41.2% |
| Native American | 0.54% |
| Hawaiin/Pacific Islander | 10.44% |