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 | Official name: State of Rhode Island Rhode Island postal code abbreviation: RI Rhode Island prefix phone numbers: 401 You may also be interested in the answers to the following questions: Total area: 4 002 km2 ✅ What is the largest city by population in Rhode Island?- Largest Rhode Island cities by population: Providence ✅ What is the capital of Rhode Island?- State capital of Rhode Island: Providence ✅ What is the population of Rhode Island?- Rhode Island state population 2025: 1 051 302 |