Last official estimated population of Jefferson Davis County was 12,456 (year 2014)[1]. This was 0.004% of total US population and 0.4% of total Mississippi state population. Area of Jefferson Davis County is 409.1 mi² (=1059.7 km²), in this year population density was 30.44 p/mi². If population growth rate would be same as in period 2010-2014 (-0.06%/yr), Jefferson Davis County population in 2025 would be 12,371 [0].
Historical population of Jefferson Davis County for period 1910-2014 [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

[1910-1920] -0.08 %/yr
[1920-1930] +1.14 %/yr
[1930-1940] +1.06 %/yr
[1940-1950] -0.23 %/yr
[1950-1960] -1.34 %/yr
[1960-1970] -0.46 %/yr
[1970-1980] +0.68 %/yr
[1980-1990] +0.15 %/yr
[1990-2000] -0.07 %/yr
[2000-2005] -1.62 %/yr
[2005-2010] -0.59 %/yr
[2010-2014] -0.06 %/yr
Looking for settlements in Jefferson Davis County? Visit this page: Settlements in Jefferson Davis County, MS
Population of Jefferson Davis County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 351 | 342 | 693 |
| 5 to 9 | 341 | 360 | 701 |
| 10 to 14 | 340 | 303 | 643 |
| 15 to 19 | 390 | 351 | 741 |
| 20 to 24 | 385 | 413 | 798 |
| 25 to 29 | 317 | 340 | 657 |
| 30 to 34 | 296 | 309 | 605 |
| 35 to 39 | 350 | 334 | 684 |
| 40 to 44 | 340 | 375 | 715 |
| 45 to 49 | 350 | 378 | 728 |
| 50 to 54 | 374 | 466 | 840 |
| 55 to 59 | 425 | 477 | 902 |
| 60 to 64 | 387 | 445 | 832 |
| 65 to 69 | 343 | 421 | 764 |
| 70 to 74 | 291 | 330 | 621 |
| 75 to 79 | 194 | 195 | 389 |
| 80 to 84 | 89 | 154 | 243 |
| 85+ | 65 | 201 | 266 |
Jefferson Davis County 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 | 5551 | 6135 | 11,686 |
| BAC | 3331 | 3812 | 7,143 |
| NHBAC | 3315 | 3793 | 7,108 |
| BA | 3302 | 3782 | 7,084 |
| NHBA | 3291 | 3768 | 7,059 |
| WAC | 2293 | 2373 | 4,666 |
| WA | 2247 | 2328 | 4,575 |
| NHWAC | 2231 | 2332 | 4,563 |
| NHWA | 2191 | 2292 | 4,483 |
| H | 77 | 59 | 136 |
| HWAC | 62 | 41 | 103 |
| TOM | 50 | 52 | 102 |
| HWA | 56 | 36 | 92 |
| NHTOM | 42 | 44 | 86 |
| IAC | 32 | 40 | 72 |
| NHIAC | 30 | 34 | 64 |
| AAC | 19 | 17 | 36 |
| HBAC | 16 | 19 | 35 |
| NHAAC | 17 | 17 | 34 |
| IA | 15 | 17 | 32 |
| NHIA | 15 | 16 | 31 |
| AA | 12 | 14 | 26 |
| NHAA | 12 | 14 | 26 |
| HBA | 11 | 14 | 25 |
| HTOM | 8 | 8 | 16 |
| NAC | 3 | 5 | 8 |
| HIAC | 2 | 6 | 8 |
| HNAC | 3 | 1 | 4 |
| NHNAC | 0 | 4 | 4 |
| NA | 2 | 1 | 3 |
| HNA | 2 | 0 | 2 |
| HAAC | 2 | 0 | 2 |
| NHNA | 0 | 1 | 1 |
| HIA | 0 | 1 | 1 |
| HAA | 0 | 0 | 0 |
• Jones County population
38.9 mi,
84°
• Lamar County
31.7 mi,
143°
• Lincoln County
37 mi,
266°
• Copiah County
42.1 mi,
299°
• Simpson County
23.9 mi,
347°
• Marion County
23.2 mi,
179°
• Covington County
17 mi,
74°
• Smith County
36.9 mi,
31°
• Walthall County
32.2 mi,
210°
• Lawrence County
16.6 mi,
266°
[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
*Lawrence, Covington Mississippi Notes
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