Gilberton, PA has a population of 866 and is the 16,062nd largest city in the United States. The population density is 610 per sq mi which is 120% higher than the Pennsylvania average and 573% higher than the national average. The median age in Gilberton is 38 which is approximately 7% lower than the Pennsylvania average of 41. In Gilberton, 47% of the population over 15 years of age are married, 96% speak English and 1% speak Spanish. 91% of Gilberton residents were born in Pennsylvania, 9% were born out of state, 0% were born outside of the United States and 0% were foreign born.