Road Sign Encyclopedia

Interstate sign: what does it mean?

Discover the Interstate sign.

Meaning, definition, shape, location, color, and more.

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The interstate sign is a directional sign. Interstate signs indicate the route number of the highway. Oftentimes they also denote the direction and state name. An interstate is a highway that connects two or more states. Interstate signs help drivers navigate when journeying across state lines.

Shape: Shield
Interstate signs are a shield shape, with the word “Interstate” on the top of them.
Location: Major intersections
This sign is found at large intersections and may be accompanied by arrows or the direction.
Color: Blue, red and white
White numbers on a blued background and a red line along the top.
Real-life examples

Interstate signs in the wild

Things To Remember

  • Interstate signs are posted along highways that go through two or more states.
  • They are typically found at major intersections so travelers can reference them for directions.
  • Sometimes the interstate sign will be accompanied by arrows or a direction (north, south, east, or west).

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