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Image Map Acadiana With Parish Names And 1a Logo
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Population Trend - Acadiana Region

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Lightcast (Emsi) demographic data is compiled from several sources including annual population estimates and population projections from the US Census Bureau, and birth and mortality rates from the US Health Department.

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(Updated 06-06-2025)
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Population Trend - Lafayette Parish

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Lightcast (Emsi) demographic data is compiled from several sources including annual population estimates and population projections from the US Census Bureau, and birth and mortality rates from the US Health Department.

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(Updated 06-06-2025)
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Population by Age Cohort - Acadiana Region

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Age Cohort
2018 Population
2023 Population
Change
% Change
2023 % of Cohort
Under 5 years47,947
44,525
-3,422
-7%
6.61%
5 to 9 years47,111
46,704
-407
-1%
6.93%
10 to 14 years47,987
46,640
-1,347
-3%
6.92%
15 to 19 years44,191
44,217
26
0%
6.56%
20 to 24 years42,212
39,908
-2,304
-5%
5.92%
25 to 29 years50,904
42,183
-8,721
-17%
6.26%
30 to 34 years46,948
46,759
-189
-0%
6.94%
35 to 39 years45,615
44,683
-932
-2%
6.63%
40 to 44 years39,171
43,823
4,652
12%
6.5%
45 to 49 years40,256
37,848
-2,408
-6%
5.62%
50 to 54 years42,857
38,689
-4,168
-10%
5.74%
55 to 59 years47,464
40,974
-6,490
-14%
6.08%
60 to 64 years43,549
44,326
777
2%
6.58%
65 to 69 years34,182
39,719
5,537
16%
5.9%
70 to 74 years25,451
29,491
4,040
16%
4.38%
75 to 79 years17,887
20,348
2,461
14%
3.02%
80 to 84 years12,186
12,382
196
2%
1.84%
85 years and over11,671
10,554
-1,117
-10%
1.57%

Source: Lightcast

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(Updated 09-08-2025)
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Population by Age Cohort - Lafayette Parish

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Age Cohort
2018 Population
2023 Population
Change
% Change
2023 % of Cohort
Under 5 years16,644
16,528
-116
-1%
6.62%
5 to 9 years16,027
16,959
932
6%
6.79%
10 to 14 years15,915
16,453
538
3%
6.59%
15 to 19 years15,037
15,501
464
3%
6.21%
20 to 24 years15,981
15,157
-824
-5%
6.07%
25 to 29 years20,169
16,939
-3,230
-16%
6.78%
30 to 34 years19,399
19,356
-43
-0%
7.75%
35 to 39 years17,931
18,585
654
4%
7.44%
40 to 44 years14,724
17,527
2,803
19%
7.02%
45 to 49 years14,529
14,531
2
0%
5.82%
50 to 54 years14,348
14,275
-73
-1%
5.72%
55 to 59 years15,928
13,988
-1,940
-12%
5.6%
60 to 64 years14,626
15,412
786
5%
6.17%
65 to 69 years11,535
13,777
2,242
19%
5.52%
70 to 74 years8,011
10,428
2,417
30%
4.18%
75 to 79 years5,295
6,862
1,567
30%
2.75%
80 to 84 years3,632
3,965
333
9%
1.59%
85 years and over3,762
3,507
-255
-7%
1.4%

Source: Lightcast

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(Updated 09-08-2025)
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Migration Patterns by Parish to/from Lafayette Parish (County)

Top 15 Regions sorted by Outbound Migration from Lafayette Parish (hover to display values)

Inbound Migrations
Outbound Migrations
Net Migrations

2022 IRS Data

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(Updated 06-23-2025)
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