Louisiana Citizen Population By County in 2015 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2015, the citizen population for Louisiana was 4,515,610 and represented 97.63% of the total Louisiana population.

Among all Louisiana counties, East Baton Rouge had the highest citizen population (430.63K), followed by Jefferson (405.57K), and Orleans (364.29K).

In terms of percentages, Winn had the highest percentage of its population being citizens (99.97%), followed by Bienville (99.93%), and Richland (99.93%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.

You may also be interested in:
Louisiana Citizen Voting-age Population By County in 2015

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Louisiana Citizen Population By County in 2015

Items per page:

0 of 0

County	Citizen Population	% of County Population
East Baton Rouge	430630	96.84
Jefferson	405570	93.22
Orleans	364285	96.69
Caddo	251885	98.88
St. Tammany	238680	98.24
Lafayette	225150	97.13
Calcasieu	193100	98.58
Ouachita	154255	99.03
Livingston	132470	98.90
Rapides	129945	98.28
Tangipahoa	123680	98.56
Bossier	120035	97.27
Ascension	112555	98.10
Terrebonne	110455	97.97
Lafourche	94995	97.46
St. Landry	83025	99.29
Iberia	72105	97.52
Acadia	61545	99.00
Vermilion	58070	98.24
St. Martin	52500	98.82
Vernon	51585	98.30
St. Charles	51530	97.89
St. Mary	51500	96.37
Washington	46025	98.86
Lincoln	45890	96.92
St. John the Baptist	43255	97.95
St. Bernard	41810	97.55
Avoyelles	41080	99.25
Webster	40495	99.71
Natchitoches	39065	99.33
Beauregard	35755	98.61
Iberville	33085	99.56
Evangeline	33015	97.76
Jefferson Davis	31330	99.67
Morehouse	26905	99.61
De Soto	26810	99.43
Allen	25010	97.49
West Baton Rouge	24365	98.76
Sabine	24020	99.05
Plaquemines	22870	96.91
Assumption	22830	99.02
Pointe Coupee	22240	98.84
Union	22205	98.54
Grant	21740	97.23
St. James	21555	99.56
Richland	20760	99.93
Franklin	20530	99.90
Concordia	20410	99.80
East Feliciana	19835	99.90
Claiborne	16560	99.52
Jackson	15985	99.22
West Feliciana	15355	99.61
Winn	14850	99.97
LaSalle	14540	97.58
Bienville	13965	99.93
Madison	11850	99.79
West Carroll	11370	99.26
St. Helena	10800	99.82
Catahoula	10215	99.71
Caldwell	9860	98.70
Red River	8795	99.49
East Carroll	7465	99.53
Cameron	6665	99.40
Tensas	4890	99.90