Cardiff is a city located in Jefferson County Alabama. With a 2020 population of 59, it is the 453rd largest city in Alabama and the 18974th largest city in the United States . Cardiff is currently growing at a rate of 3.51% annually and its population has increased by 7.27% since the most recent census, which recorded a population of 55 in 2010. Cardiff reached it's highest population of 59 in 2021. Spanning over 0 miles, Cardiff has a population density of 235 people per square mile.
The average household income in Cardiff is $61,162 with a poverty rate of 36.00%. The median rental costs in recent years comes to - per month, and the median house value is $45,000. The median age in Cardiff is 22.7 years, 21 years for males, and 22.7 years for females.