Donaldsonville, Louisiana

Donaldsonville population, 2020 to 2024

Donaldsonville added 236 residents from July 2020 to July 2024, a change of +3.5%. In the latest year it moved by +73. Among 59 Louisiana places of 5,000 or more, that growth ranks 10th; the median place changed by -2.7%. The median place of 5,000+ in Louisiana has 11,686 people, so Donaldsonville is 59% of it.

Donaldsonville covers 3.78 square miles of land and 0.02 of water, for 1,837 people per square mile of land. The median Louisiana place of 5,000+ has 1,568, so Donaldsonville is denser than the typical town.

What county Donaldsonville is in

All of Donaldsonville's residents live in Ascension Parish, which had 133,534 residents in 2024. Donaldsonville holds 5.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Donaldsonville

1 ZIP Code Tabulation Area (ZCTA) overlaps Donaldsonville by at least 10% of the ZCTA's or the city's land: 70346. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Donaldsonville is

The Census internal point of Donaldsonville is at 30.095100, -90.992500. Baton Rouge, the capital, is 27.6 miles NNW in a straight line. The nearest larger place is Gonzales, LA (13,837 people), 9.1 miles away. The nearest city of 100,000 or more is Baton Rouge, LA, 25.3 miles away.

Daylight in Donaldsonville

At 30.10° N, Donaldsonville gets about 14 h 05 min of daylight around the June solstice and 10 h 12 min around the December solstice, a swing of 3 h 53 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Donaldsonville

The eight nearest incorporated places of 1,000+ in Louisiana, measured between internal points. The closest is Gonzales, 9.1 miles away, with 13,837 people.