Grayson Valley, AL has a population of 4,872 and is the 6,586th largest city in the United States. The population density is 2,429 per sq mi which is 2540% higher than the Alabama average and 2581% higher than the national average. The median age in Grayson Valley is 38 which is approximately 3% lower than the Alabama average of 39. In Grayson Valley, 46% of the population over 15 years of age are married, 93% speak English and 5% speak Spanish. 82% of Grayson Valley residents were born in Alabama, 14% were born out of state, 1% were born outside of the United States and 3% were foreign born.