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 | Official name: State of Oregon Oregon postal code abbreviation: OR You may also be interested in the answers to the following questions: Total area: 255 026 km2 ✅ What is the largest city by population in Oregon?- Largest Oregon cities by population: Portland ✅ What is the capital of Oregon?- State capital of Oregon: Salem ✅ What is the population of Oregon?- Oregon state population 2025: 3 871 859 |