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 | Official name: Commonwealth of Pennsylvania Pennsylvania postal code abbreviation: PA You may also be interested in the answers to the following questions: Total area: 119 283 km2 ✅ What is the largest city by population in Pennsylvania?- Largest Pennsylvania cities by population: Philadelphia ✅ What is the capital of Pennsylvania?- State capital of Pennsylvania: Harrisburg ✅ What is the population of Pennsylvania?- Pennsylvania state population 2025: 12 742 886 |