The distance between Portland, Oregon, and Seattle, Washington, is a frequently requested piece of information. The separation can be measured using various modes of transportation and routes, resulting in differing numerical values. Generally, the ground distance constitutes approximately 174 miles when traveling directly via Interstate 5. This figure represents a key element for travel planning between these two major Pacific Northwest cities.
Understanding the mileage provides crucial benefits for trip logistics. It allows individuals to estimate travel time, budget for fuel costs, and determine potential stopover points. Historically, this route has been significant for commerce and transportation in the region, shaping patterns of migration and economic activity. The efficiency of travel between the two cities continues to influence regional development.