Population.us > Counties > Illinois > Rock Island County

Population of Rock Island County

Last official estimated population of Rock Island County was 147,632 (year 2014)[1]. This was 0.046% of total US population and 1.1% of total Illinois state population. Area of Rock Island County is 451.3 mi² (=1168.8 km²), in this year population density was 327.13 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Rock Island County population in 2022 would be 147,804 [0].


Historical population

Historical population of Rock Island County for period 1840-2014 [1] , [2] , [3]:

Maps: Population, population density, population changes

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.

PopulationDensityChangesLegendsPosition

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Annual growth rate

[1840-1850] +10.27 %/yr
[1850-1860] +11.72 %/yr
[1860-1870] +3.55 %/yr
[1870-1880] +2.55 %/yr
[1880-1890] +0.91 %/yr
[1890-1900] +2.8 %/yr
[1900-1910] +2.45 %/yr
[1910-1920] +2.74 %/yr
[1920-1930] +0.62 %/yr
[1930-1940] +1.44 %/yr
[1940-1950] +1.66 %/yr
[1950-1960] +1.23 %/yr
[1960-1970] +1 %/yr
[1970-1980] -0.05 %/yr
[1980-1990] -1.09 %/yr
[1990-2000] +0.04 %/yr
[2000-2005] -0.31 %/yr
[2005-2010] +0.07 %/yr
[2010-2014] +0.01 %/yr

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Demography

Population of Rock Island County by age groups male (M) and female (F)[1b]

Age Gr. (M) (F) Total
0 to 4 4476 4414 8,890
5 to 9 4681 4481 9,162
10 to 14 4543 4258 8,801
15 to 19 4682 4453 9,135
20 to 24 4639 4729 9,368
25 to 29 4575 4425 9,000
30 to 34 4933 4523 9,456
35 to 39 4504 4196 8,700
40 to 44 4232 4215 8,447
45 to 49 4387 4353 8,740
50 to 54 5028 5156 10,184
55 to 59 5277 5518 10,795
60 to 64 4678 4956 9,634
65 to 69 3800 4251 8,051
70 to 74 2871 3096 5,967
75 to 79 1990 2496 4,486
80 to 84 1357 1999 3,356
85+ 1259 2632 3,891

Rock Island 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 62709 65190 127,899
WAC 62185 65124 127,309
WA 60361 63385 123,746
NHWAC 53752 56907 110,659
NHWA 52252 55464 107,716
H 9203 8961 18,164
BAC 8728 8119 16,847
HWAC 8433 8217 16,650
HWA 8109 7921 16,030
NHBAC 8125 7517 15,642
BA 7446 6874 14,320
NHBA 7049 6461 13,510
AAC 2077 1902 3,979
TOM 1937 1861 3,798
NHAAC 1962 1817 3,779
AA 1741 1570 3,311
NHAA 1667 1521 3,188
NHTOM 1587 1540 3,127
IAC 846 849 1,695
HBAC 603 602 1,205
NHIAC 443 479 922
HBA 397 413 810
IA 391 418 809
HIAC 403 370 773
HTOM 350 321 671
HIA 266 253 519
NHIA 125 165 290
NAC 105 106 211
HAAC 115 85 200
NHNAC 83 91 174
HAA 74 49 123
NA 36 43 79
NHNA 29 39 68
HNAC 22 15 37
HNA 7 4 11

Counties near Rock Island County

Scott County population 12.3 mi, 347°
Whiteside County 39.3 mi, 60°
Knox County 41.5 mi, 153°
Henry County 24.3 mi, 109°
Clinton County 29.8 mi,
Muscatine County 28.3 mi, 272°
Cedar County 35.8 mi, 305°
Warren County 42.8 mi, 183°
Mercer County 20.2 mi, 205°
Louisa County 39.5 mi, 244°


Sources, notices

[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

*Jo Daviess; see note 8 Illinois Notes

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