Last official estimated population of Davis County was 8,791 (year 2014)[1]. This was 0.003% of total US population and 0.3% of total Iowa state population. Area of Davis County is 504.9 mi² (=1307.6 km²), in this year population density was 17.41 p/mi². If population growth rate would be same as in period 2010-2014 (+0.11%/yr), Davis County population in 2026 would be 8,906 [0].
Historical population of Davis County for period 1850-2014 [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
[1850-1860] +6.6 %/yr
[1860-1870] +1.24 %/yr
[1870-1880] +0.57 %/yr
[1880-1890] -0.76 %/yr
[1890-1900] +0.23 %/yr
[1900-1910] -1.58 %/yr
[1910-1920] -0.57 %/yr
[1920-1930] -1.19 %/yr
[1930-1940] -0.01 %/yr
[1940-1950] -1.11 %/yr
[1950-1960] -0.79 %/yr
[1960-1970] -1.13 %/yr
[1970-1980] +1.04 %/yr
[1980-1990] -0.91 %/yr
[1990-2000] +0.27 %/yr
[2000-2005] +0.1 %/yr
[2005-2010] +0.39 %/yr
[2010-2014] +0.11 %/yr
Looking for settlements in Davis County? Visit this page: Settlements in Davis County, IA
Population of Davis County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 317 | 384 | 701 |
| 5 to 9 | 357 | 363 | 720 |
| 10 to 14 | 323 | 343 | 666 |
| 15 to 19 | 342 | 309 | 651 |
| 20 to 24 | 261 | 214 | 475 |
| 25 to 29 | 210 | 218 | 428 |
| 30 to 34 | 233 | 233 | 466 |
| 35 to 39 | 233 | 220 | 453 |
| 40 to 44 | 249 | 218 | 467 |
| 45 to 49 | 239 | 242 | 481 |
| 50 to 54 | 299 | 301 | 600 |
| 55 to 59 | 308 | 298 | 606 |
| 60 to 64 | 261 | 271 | 532 |
| 65 to 69 | 227 | 205 | 432 |
| 70 to 74 | 160 | 195 | 355 |
| 75 to 79 | 135 | 168 | 303 |
| 80 to 84 | 105 | 116 | 221 |
| 85+ | 82 | 142 | 224 |
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 |
| WAC | 4306 | 4401 | 8,707 |
| NH | 4290 | 4385 | 8,675 |
| WA | 4263 | 4368 | 8,631 |
| NHWAC | 4257 | 4346 | 8,603 |
| NHWA | 4216 | 4315 | 8,531 |
| H | 51 | 55 | 106 |
| HWAC | 49 | 55 | 104 |
| HWA | 47 | 53 | 100 |
| TOM | 46 | 35 | 81 |
| NHTOM | 44 | 33 | 77 |
| BAC | 30 | 24 | 54 |
| IAC | 30 | 23 | 53 |
| NHAAC | 22 | 30 | 52 |
| AAC | 22 | 30 | 52 |
| NHBAC | 29 | 22 | 51 |
| NHIAC | 27 | 22 | 49 |
| AA | 8 | 20 | 28 |
| NHAA | 8 | 20 | 28 |
| BA | 14 | 7 | 21 |
| NHBA | 14 | 7 | 21 |
| IA | 10 | 10 | 20 |
| NHIA | 8 | 10 | 18 |
| HIAC | 3 | 1 | 4 |
| HTOM | 2 | 2 | 4 |
| HBAC | 1 | 2 | 3 |
| HIA | 2 | 0 | 2 |
| NAC | 1 | 0 | 1 |
| NHNAC | 1 | 0 | 1 |
| HNAC | 0 | 0 | 0 |
| NA | 0 | 0 | 0 |
| NHNA | 0 | 0 | 0 |
| HBA | 0 | 0 | 0 |
| HAAC | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
• Wapello County population
19.6 mi, 
0°
• Adair County
39.8 mi, 
194°
• Mahaska County
41.9 mi, 
343°
• Jefferson County
29.3 mi, 
52°
• Appanoose County
24.2 mi, 
269°
• Monroe County
30.9 mi, 
308°
• Van Buren County
23.9 mi, 
89°
• Putnam County
36.8 mi, 
239°
• Scotland County
25.1 mi, 
145°
• Schuyler County
20.1 mi, 
196°
[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
*Van Buren Iowa Notes
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