McNair

Geography

The CDP is in northwestern Fairfax County, bordered to the northeast by the town of Herndon, to the east by Reston, to the south by Floris, and to the northwest by Loudoun County. The Dulles Toll Road (Virginia State Route 267) forms the northern edge of the CDP, and Virginia State Route 28 (Sully Road) forms part of the western border. Via the Dulles Toll Road and Interstate 66 it is east to downtown Washington, D.C. According to the U.S. Census Bureau, the McNair CDP has a total area of , of which , or 0.85%, is water.

Race & ethnicity

Most-observed species

• Northern Cardinal

  Cardinalis cardinalis (Linnaeus, 1758) · Aves
  101,967
• Carolina Wren

  Thryothorus ludovicianus (Latham, 1790) · Aves
  88,929
• Blue Jay

  Cyanocitta cristata (Linnaeus, 1758) · Aves
  72,893
• Carolina Chickadee

  Poecile carolinensis (Audubon, 1834) · Aves
  69,201
• Tufted Titmouse

  Baeolophus bicolor (Linnaeus, 1766) · Aves
  67,777
• Red-bellied Woodpecker

  Melanerpes carolinus (Linnaeus, 1758) · Aves
  67,321
• American Crow

  Corvus brachyrhynchos C.L.Brehm, 1822 · Aves
  65,226
• American Robin

  Turdus migratorius Linnaeus, 1766 · Aves
  61,743

Largest nearby schools

• CHANTILLY HIGH
  High · Chantilly · 2,937 students · 16.2:1 ratio
• OAKTON HIGH
  High · Vienna · 2,701 students · 17.5:1 ratio
• WESTFIELD HIGH
  High · Chantilly · 2,686 students · 16.8:1 ratio
• CENTREVILLE HIGH
  High · Clifton · 2,623 students · 17.6:1 ratio
• SOUTH LAKES HIGH
  High · Reston · 2,530 students · 15.2:1 ratio
• HERNDON HIGH
  High · Herndon · 2,361 students · 16.5:1 ratio
• MADISON HIGH
  High · Vienna · 2,135 students · 16.2:1 ratio
• CARSON MIDDLE
  Middle · Herndon · 1,361 students · 16.2:1 ratio

Most recent

• M 2.5 — 2025-10-27
  4 km E of Riverside, Maryland
• M 2.6 — 2021-06-25
  2 km SE of Woodlawn, Maryland
• M 3.03 — 2016-01-17
  3 km NE of Ranson, West Virginia
• M 3.6 — 2010-07-16
  5 km NNW of Barnesville, Maryland