Population.us > Counties > Illinois > Stephenson County

Population of Stephenson County

Last official estimated population of Stephenson County was 47,680 (year 2014)[1]. This was 0.015% of total US population and 0.4% of total Illinois state population. Area of Stephenson County is 565.1 mi² (=1463.6 km²), in this year population density was 84.38 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Stephenson County population in 2024 would be 47,603 [0].


Historical population

Historical population of Stephenson 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] +15.34 %/yr
[1850-1860] +7.97 %/yr
[1860-1870] +2 %/yr
[1870-1880] +0.43 %/yr
[1880-1890] -0.2 %/yr
[1890-1900] +1.09 %/yr
[1900-1910] +0.53 %/yr
[1910-1920] +0.25 %/yr
[1920-1930] +0.6 %/yr
[1930-1940] +0.14 %/yr
[1940-1950] +0.23 %/yr
[1950-1960] +1.06 %/yr
[1960-1970] +0.56 %/yr
[1970-1980] +0.14 %/yr
[1980-1990] -0.3 %/yr
[1990-2000] +0.19 %/yr
[2000-2005] -0.37 %/yr
[2005-2010] -0.16 %/yr
[2010-2014] -0.02 %/yr

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Demography

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

Age Gr. (M) (F) Total
0 to 4 1323 1290 2,613
5 to 9 1398 1430 2,828
10 to 14 1496 1395 2,891
15 to 19 1423 1365 2,788
20 to 24 1395 1327 2,722
25 to 29 1137 1213 2,350
30 to 34 1164 1260 2,424
35 to 39 1060 1180 2,240
40 to 44 1325 1279 2,604
45 to 49 1476 1488 2,964
50 to 54 1734 1853 3,587
55 to 59 1791 1806 3,597
60 to 64 1618 1686 3,304
65 to 69 1294 1431 2,725
70 to 74 999 1165 2,164
75 to 79 785 950 1,735
80 to 84 581 753 1,334
85+ 476 1089 1,565

Stephenson 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 21652 23139 44,791
WAC 20062 21394 41,456
WA 19533 20786 40,319
NHWAC 19336 20655 39,991
NHWA 18841 20077 38,918
BAC 2587 2779 5,366
NHBAC 2503 2697 5,200
BA 2165 2305 4,470
NHBA 2105 2244 4,349
H 823 821 1,644
HWAC 726 739 1,465
HWA 692 709 1,401
TOM 558 631 1,189
NHTOM 521 599 1,120
AAC 226 258 484
NHAAC 219 254 473
AA 152 172 324
NHAA 149 170 319
IAC 138 154 292
NHIAC 98 127 225
HBAC 84 82 166
HBA 60 61 121
IA 54 57 111
HTOM 37 32 69
HIAC 40 27 67
NHIA 26 40 66
HIA 28 17 45
NAC 26 19 45
NHNAC 22 18 40
NA 13 9 22
NHNA 10 9 19
HAAC 7 4 11
HNAC 4 1 5
HAA 3 2 5
HNA 3 0 3

Counties near Stephenson County

Winnebago County population 25.8 mi, 91°
Rock County 37.3 mi, 53°
Whiteside County 43.3 mi, 196°
Boone County 43 mi, 92°
Ogle County 27.7 mi, 140°
Green County 22.7 mi,
Lee County 45.7 mi, 155°
Jo Daviess County 27.9 mi, 271°
Lafayette County 31.7 mi, 311°
Carroll County 23.4 mi, 214°


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 Illinois Notes

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