Last official estimated population of Benton County was 26,059 (year 2014)[1]. This was 0.008% of total US population and 0.8% of total Iowa state population. Area of Benton County is 718.5 mi² (=1860.9 km²), in this year population density was 36.27 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Benton County population in 2025 would be 26,012 [0].
Historical population of Benton 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] +28.88 %/yr
[1860-1870] +10.21 %/yr
[1870-1880] +1.03 %/yr
[1880-1890] -0.29 %/yr
[1890-1900] +0.41 %/yr
[1900-1910] -0.83 %/yr
[1910-1920] +0.39 %/yr
[1920-1930] -0.52 %/yr
[1930-1940] +0.01 %/yr
[1940-1950] -0.1 %/yr
[1950-1960] +0.33 %/yr
[1960-1970] -0.23 %/yr
[1970-1980] +0.33 %/yr
[1980-1990] -0.53 %/yr
[1990-2000] +1.22 %/yr
[2000-2005] +0.74 %/yr
[2005-2010] -0.14 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in Benton County? Visit this page: Settlements in Benton County, IA
Population of Benton County by age groups male (M) and female (F)[1b]
Age Gr. | (M) | (F) | Total |
0 to 4 | 731 | 722 | 1,453 |
5 to 9 | 866 | 828 | 1,694 |
10 to 14 | 906 | 945 | 1,851 |
15 to 19 | 910 | 796 | 1,706 |
20 to 24 | 704 | 674 | 1,378 |
25 to 29 | 584 | 571 | 1,155 |
30 to 34 | 725 | 719 | 1,444 |
35 to 39 | 737 | 758 | 1,495 |
40 to 44 | 779 | 797 | 1,576 |
45 to 49 | 893 | 956 | 1,849 |
50 to 54 | 1087 | 1071 | 2,158 |
55 to 59 | 1081 | 963 | 2,044 |
60 to 64 | 801 | 734 | 1,535 |
65 to 69 | 624 | 659 | 1,283 |
70 to 74 | 501 | 529 | 1,030 |
75 to 79 | 337 | 390 | 727 |
80 to 84 | 285 | 325 | 610 |
85+ | 213 | 479 | 692 |
Benton 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 | 12617 | 12763 | 25,380 |
NH | 12603 | 12736 | 25,339 |
WA | 12493 | 12648 | 25,141 |
NHWAC | 12467 | 12599 | 25,066 |
NHWA | 12346 | 12494 | 24,840 |
H | 161 | 180 | 341 |
HWAC | 150 | 164 | 314 |
HWA | 147 | 154 | 301 |
BAC | 160 | 126 | 286 |
NHBAC | 152 | 115 | 267 |
TOM | 125 | 121 | 246 |
NHTOM | 122 | 110 | 232 |
BA | 89 | 56 | 145 |
NHBA | 83 | 48 | 131 |
IAC | 65 | 65 | 130 |
AAC | 51 | 78 | 129 |
NHAAC | 51 | 78 | 129 |
NHIAC | 60 | 54 | 114 |
AA | 28 | 58 | 86 |
NHAA | 28 | 58 | 86 |
IA | 28 | 27 | 55 |
NHIA | 24 | 23 | 47 |
HBAC | 8 | 11 | 19 |
HIAC | 5 | 11 | 16 |
HBA | 6 | 8 | 14 |
HTOM | 3 | 11 | 14 |
NAC | 2 | 11 | 13 |
HIA | 4 | 4 | 8 |
NA | 1 | 6 | 7 |
NHNAC | 1 | 6 | 7 |
HNAC | 1 | 5 | 6 |
HNA | 1 | 3 | 4 |
NHNA | 0 | 3 | 3 |
HAAC | 0 | 0 | 0 |
HAA | 0 | 0 | 0 |
• Linn County population
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47.5 mi, 265°
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• Tama County
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• Iowa County
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• Grundy County
43.2 mi, 299°
[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
*Linn Iowa Notes
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