Interstate 78 Mileages in Each State

2025-04-04 Roadnow

West

Pennsylvania: 75.23 miles or 120.37 kilometers
Pennsylvania cities along I-78: Harrisburg > Allentown > Bethlehem > Easton

New Jersey: 67.83 miles or 108.53 kilometers
New Jersey cities along I-78: Phillipsburg > Newark > Jersey City

: 0.50 miles or 0.80 kilometers
cities along I-78:

East

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