Winfield, AL has a population of 4,448 and is the 6,967th largest city in the United States. The population density is 254 per sq mi which is 176% higher than the Alabama average and 180% higher than the national average. The median age in Winfield is 44 which is approximately 13% higher than the Alabama average of 39. In Winfield, 62% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 76% of Winfield residents were born in Alabama, 23% were born out of state, 0% were born outside of the United States and 0% were foreign born.