Louisiana Citizen Population By County in 2010 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2010, the citizen population for Louisiana was 4,338,240 and represented 97.93% of the total Louisiana population.

Among all Louisiana counties, East Baton Rouge had the highest citizen population (422.84K), followed by Jefferson (406.18K), and Orleans (285.27K).

In terms of percentages, Bienville had the highest percentage of its population being citizens (100.00%), followed by Franklin (100.00%), and Madison (100.00%).

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 2010

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

See this for other years:

Louisiana Citizen Population By County in 2010

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County	Citizen Population	% of County Population
East Baton Rouge	422840	97.02
Jefferson	406180	94.24
Orleans	285270	96.61
Caddo	250160	98.86
St. Tammany	224930	98.27
Lafayette	210305	97.55
Calcasieu	186735	98.73
Ouachita	150915	99.15
Rapides	129210	98.78
Livingston	121455	98.91
Tangipahoa	116900	98.91
Bossier	111005	97.51
Terrebonne	109105	98.18
Ascension	100635	98.18
Lafourche	93920	98.42
St. Landry	84015	99.65
Iberia	71775	97.79
Acadia	60855	99.53
Vermilion	56570	98.76
St. Mary	53110	97.72
St. Charles	51725	98.25
St. Martin	51250	99.09
Vernon	49470	98.06
Washington	46445	99.71
St. John the Baptist	45840	98.10
Lincoln	44200	96.52
Avoyelles	41785	99.45
Webster	41045	99.53
Natchitoches	38965	99.21
Beauregard	34770	99.34
Evangeline	33740	98.02
Iberville	33210	99.09
Jefferson Davis	31350	99.52
Morehouse	28350	99.86
St. Bernard	27060	97.55
De Soto	26160	98.85
Allen	25215	97.68
Sabine	23945	99.27
Assumption	23370	99.51
West Baton Rouge	23045	99.01
Pointe Coupee	22570	98.84
Plaquemines	22555	99.32
Union	22445	98.66
St. James	21970	99.43
Grant	21385	98.66
Franklin	20725	100.00
Richland	20640	99.76
Concordia	20330	99.17
East Feliciana	20300	99.44
Claiborne	17080	99.53
Jackson	16050	99.81
West Feliciana	15525	99.01
Winn	15365	99.29
La Salle	14600	99.46
Bienville	14545	100.00
Madison	12285	100.00
West Carroll	11525	98.59
St. Helena	11105	99.82
Catahoula	10435	99.71
Caldwell	10160	99.71
Red River	9175	99.95
East Carroll	7955	99.87
Cameron	7245	99.52
Tensas	5430	100.00