Dorseyville is a census-designated place (CDP) in Iberville Parish, Louisiana, United States, corresponding to the unincorporated community of Dorcyville or Dorseyville. Dorseyville was first listed as a CDP prior to the 2020 census with a population of 159.

It is in the southeastern part of the parish, on the southwest bank of the Mississippi River. Louisiana Highway 1 forms the southern edge of the community, leading southeast 1 mile (1.6 km) to White Castle and northwest 9 miles (14 km) to Plaquemine.

Historical population

Census	Pop.	Note	%±
2020	159		—
U.S. Decennial Census 2020

Dorseyville CDP, Louisiana – Racial and ethnic composition
Note: the US census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.

Race / Ethnicity (NH = Non-Hispanic)	Pop 2020	% 2020
White alone (NH)	0	0.00%
Black or African American alone (NH)	159	100.00%
Native American or Alaska Native alone (NH)	0	0.00%
Asian alone (NH)	0	0.00%
Pacific Islander alone (NH)	0	0.00%
Some Other Race alone (NH)	0	0.00%
Mixed Race or Multi-Racial (NH)	0	0.00%
Hispanic or Latino (any race)	0	0.00%
Total	159	100.00%