Brilliant, AL has a population of 1,049 and is the 14,854th largest city in the United States. The population density is 98 per sq mi which is 7% higher than the Alabama average and 8% higher than the national average. The median age in Brilliant is 41 which is approximately 7% higher than the Alabama average of 39. In Brilliant, 61% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 78% of Brilliant residents were born in Alabama, 22% were born out of state, 0% were born outside of the United States and 0% were foreign born.