Union Dale, PA has a population of 271 and is the 22,993rd largest city in the United States. The population density is 113 per sq mi which is 59% lower than the Pennsylvania average and 24% higher than the national average. The median age in Union Dale is 53 which is approximately 30% higher than the Pennsylvania average of 41. In Union Dale, 63% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 82% of Union Dale residents were born in Pennsylvania, 17% were born out of state, 1% were born outside of the United States and 0% were foreign born.