Lower Kalskag, AK has a population of 286 and is the 22,720th largest city in the United States. The population density is 230 per sq mi which is 20796% higher than the Alaska average and 154% higher than the national average. The median age in Lower Kalskag is 33 which is approximately 3% lower than the Alaska average of 34. In Lower Kalskag, 47% of the population over 15 years of age are married, 57% speak English and 0% speak Spanish. 97% of Lower Kalskag residents were born in Alaska, 0% were born out of state, 0% were born outside of the United States and 3% were foreign born.