Granite Falls, NC has a population of 4,686 and is the 6,748th largest city in the United States. The population density is 896 per sq mi which is 311% higher than the North Carolina average and 889% higher than the national average. The median age in Granite Falls is 40 which is approximately 5% higher than the North Carolina average of 38. In Granite Falls, 56% of the population over 15 years of age are married, 89% speak English and 3% speak Spanish. 72% of Granite Falls residents were born in North Carolina, 22% were born out of state, 0% were born outside of the United States and 6% were foreign born.