Diamond Ridge, AK has a population of 1,201 and is the 14,026th largest city in the United States. The population density is 28 per sq mi which is 2475% higher than the Alaska average and 69% lower than the national average. The median age in Diamond Ridge is 45 which is approximately 35% higher than the Alaska average of 34. In Diamond Ridge, 60% of the population over 15 years of age are married, 95% speak English and 1% speak Spanish. 33% of Diamond Ridge residents were born in Alaska, 62% were born out of state, 3% were born outside of the United States and 2% were foreign born.