Greene, RI has a population of 728 and is the 17,231st largest city in the United States. The population density is 120 per sq mi which is 82% lower than the Rhode Island average and 32% higher than the national average. The median age in Greene is 52 which is approximately 31% higher than the Rhode Island average of 40. In Greene, 72% of the population over 15 years of age are married, 96% speak English and 0% speak Spanish. 83% of Greene residents were born in Rhode Island, 15% were born out of state, 0% were born outside of the United States and 2% were foreign born.