Seward, AK has a population of 2,714 and is the 9,333rd largest city in the United States. The population density is 195 per sq mi which is 17590% higher than the Alaska average and 115% higher than the national average. The median age in Seward is 39 which is approximately 15% higher than the Alaska average of 34. In Seward, 38% of the population over 15 years of age are married, 86% speak English and 1% speak Spanish. 39% of Seward residents were born in Alaska, 52% were born out of state, 1% were born outside of the United States and 8% were foreign born.