Donaldsonville is a city located in Ascension Parish Louisiana. With a 2020 population of 8,649, it is the 42nd largest city in Louisiana and the 3417th largest city in the United States . Donaldsonville is currently growing at a rate of 1.22% annually and its population has increased by 16.31% since the most recent census, which recorded a population of 7,436 in 2010. Donaldsonville reached it's highest population of 8,649 in 2021. Spanning over 4 miles, Donaldsonville has a population density of 2,283 people per square mile.
The average household income in Donaldsonville is $48,573 with a poverty rate of 38.46%. The median rental costs in recent years comes to $626 per month, and the median house value is $113,000. The median age in Donaldsonville is 39.8 years, 39.2 years for males, and 39.8 years for females.