Last official estimated population of Allen Parish was 25,743 (year 2014)[1]. This was 0.008% of total US population and 0.6% of total Louisiana state population. Area of Allen Parish is 765.9 mi² (=1983.7 km²), in this year population density was 33.61 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Allen Parish population in 2026 would be 25,680 [0].
Historical population of Allen Parish for period 1920-2014 [1] , [2] , [3]:
Estimated population for 2014[1]. Population density is in p./sq.mi [4]. Changes are for period 2010-2015. Value is %/year. Boundary lines are approx. 2012 [5]. Click on flag to hide it.
Population • Density • Changes • Legends • Position

[1920-1930] -1.84 %/yr
[1930-1940] +1.4 %/yr
[1940-1950] +0.71 %/yr
[1950-1960] +0.53 %/yr
[1960-1970] +0.46 %/yr
[1970-1980] +0.28 %/yr
[1980-1990] -0.08 %/yr
[1990-2000] +1.83 %/yr
[2000-2005] -0.29 %/yr
[2005-2010] +0.54 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in Allen Parish? Visit this page: Settlements in Allen Parish, LA
Population of Allen Parish by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 804 | 778 | 1,582 |
| 5 to 9 | 831 | 823 | 1,654 |
| 10 to 14 | 790 | 791 | 1,581 |
| 15 to 19 | 809 | 693 | 1,502 |
| 20 to 24 | 1041 | 689 | 1,730 |
| 25 to 29 | 1299 | 646 | 1,945 |
| 30 to 34 | 1406 | 661 | 2,067 |
| 35 to 39 | 1173 | 629 | 1,802 |
| 40 to 44 | 1141 | 646 | 1,787 |
| 45 to 49 | 1096 | 714 | 1,810 |
| 50 to 54 | 1018 | 788 | 1,806 |
| 55 to 59 | 874 | 747 | 1,621 |
| 60 to 64 | 736 | 671 | 1,407 |
| 65 to 69 | 558 | 565 | 1,123 |
| 70 to 74 | 390 | 470 | 860 |
| 75 to 79 | 286 | 342 | 628 |
| 80 to 84 | 188 | 240 | 428 |
| 85+ | 130 | 250 | 380 |
Allen Parish resident population estimates by Sex, Race, and Hispanic Origin[1b]. For full list of abbrevations see: population.us/about page.
| Race | Male | Female | Total |
| NH | 14235 | 10935 | 25,170 |
| WAC | 10204 | 8632 | 18,836 |
| WA | 10012 | 8434 | 18,446 |
| NHWAC | 9952 | 8475 | 18,427 |
| NHWA | 9768 | 8289 | 18,057 |
| BAC | 4022 | 2208 | 6,230 |
| NHBAC | 3974 | 2168 | 6,142 |
| BA | 3897 | 2074 | 5,971 |
| NHBA | 3855 | 2043 | 5,898 |
| IAC | 389 | 414 | 803 |
| NHIAC | 353 | 398 | 751 |
| IA | 318 | 323 | 641 |
| NHIA | 284 | 311 | 595 |
| H | 335 | 208 | 543 |
| TOM | 212 | 227 | 439 |
| NHTOM | 204 | 213 | 417 |
| HWAC | 252 | 157 | 409 |
| HWA | 244 | 145 | 389 |
| AAC | 165 | 119 | 284 |
| NHAAC | 161 | 116 | 277 |
| AA | 126 | 78 | 204 |
| NHAA | 122 | 78 | 200 |
| HBAC | 48 | 40 | 88 |
| HBA | 42 | 31 | 73 |
| HIAC | 36 | 16 | 52 |
| HIA | 34 | 12 | 46 |
| NAC | 11 | 13 | 24 |
| HTOM | 8 | 14 | 22 |
| NHNAC | 8 | 7 | 15 |
| NA | 5 | 7 | 12 |
| HNAC | 3 | 6 | 9 |
| HNA | 3 | 6 | 9 |
| HAAC | 4 | 3 | 7 |
| HAA | 4 | 0 | 4 |
| NHNA | 2 | 1 | 3 |
• Lafayette Parish population
54.6 mi,
124°
• Calcasieu Parish
43.4 mi,
227°
• Rapides Parish
41 mi,
24°
• St. Landry Parish
49.6 mi,
95°
• Acadia Parish
34.9 mi,
135°
• Vernon Parish
38.2 mi,
325°
• Beauregard Parish
31 mi,
269°
• Evangeline Parish
25.1 mi,
79°
• Jefferson Davis Parish
26.5 mi,
179°
• Newton County
55.4 mi,
279°
[0] Calculated by population.us from last known population growth rate, not official data.
[1] County population - 2014, archived from the original, retrieved 02/23/2016
[1b] Annual County Resident Population Estimates by Age, Sex, Race, and Hispanic Origin, (used only data for 2014) archived from the original, retrieved 02/23/2016
[2] County population - 2000-2010, archived from the original, retrieved 02/23/2016
[3] Population of States and Counties of the United States: 1790 to 1992, PDF, 15 Mb, census.gov, retrieved 02/23/2016
[4] County area, latitude longitude data, retrieved 02/23/2016
[5] County boundaries, CSV files on boundaries.us, retrived 03/18/2016
*Calcasieu Louisiana Notes
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