Parish	1970	1980	1990	2000	2010	2020	% Change	% Change	% Change
Parish	1970	1980	1990	2000	2010	2020	(1990-2000)	(2000-2010)	(2010-2020)
Orleans	115,387	139,241	496,938	484,674	351,222	391,006	−2.4679135	−27.534384	11.3273087
St. Bernard	51,186	64,097	66,631	67,229	37,764	46,721	0.89748015	−43.827812	23.7183561
La Fourche	68,941	82,483	85,860	60,255	62,054	98,115	−29.821803	2.98564434	58.1122893
Plaquemines	25,225	26,049	25,575	26,757	25,106	23,410	4.62170088	−6.1703479	−6.7553573
Terrebonne	76,049	94,393	96,982	72,392	77,923	111,021	−25.355221	7.640347	42.475264
Jefferson	338,229	454,592	448,306	438,731	417,828	434,051	−2.1358179	−4.7644228	3.88269814
Iberia	57,397	63,752	68,297	73,266	73,240	70,941	7.27557579	−0.0354871	−3.1389951
St. Mary	60,752	64,253	58,086	53,500	54,650	49,774	−7.8951899	2.14953271	−8.9222324
Vermilion	43,071	48,458	50,055	53,807	57,999	59,830	7.49575467	7.79080789	3.15695098
Cameron	8194	9336	9260	9991	6839	6968	7.89416847	−31.548394	1.88624068
Total	844,431	1,046,654	1,405,990	1,340,602	1,164,625	1,291,837	−4.6506732	−13.126715	10.923001