Last official estimated population of Sedgwick County was 499,282 (year 2014)[1]. This was 0.157% of total US population and 17.1% of total Kansas state population. Area of Sedgwick County is 1,009.1 mi² (=2613.6 km²), in this year population density was 494.77 p/mi². If population growth rate would be same as in period 2010-2014 (+0.05%/yr), Sedgwick County population in 2025 would be 501,812 [0].
Historical population of Sedgwick County for period 1870-2014 [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
[1870-1880] +32.85 %/yr
[1880-1890] +8.81 %/yr
[1890-1900] +0.09 %/yr
[1900-1910] +5.2 %/yr
[1910-1920] +2.35 %/yr
[1920-1930] +3.98 %/yr
[1930-1940] +0.5 %/yr
[1940-1950] +4.49 %/yr
[1950-1960] +4.44 %/yr
[1960-1970] +0.22 %/yr
[1970-1980] +0.44 %/yr
[1980-1990] +0.97 %/yr
[1990-2000] +1.16 %/yr
[2000-2005] +0.62 %/yr
[2005-2010] +1.3 %/yr
[2010-2014] +0.05 %/yr
Looking for settlements in Sedgwick County? Visit this page: Settlements in Sedgwick County, KS
Population of Sedgwick County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 19915 | 18595 | 38,510 |
| 5 to 9 | 19250 | 18812 | 38,062 |
| 10 to 14 | 18755 | 17900 | 36,655 |
| 15 to 19 | 17578 | 16395 | 33,973 |
| 20 to 24 | 18682 | 17632 | 36,314 |
| 25 to 29 | 18465 | 18589 | 37,054 |
| 30 to 34 | 18133 | 17901 | 36,034 |
| 35 to 39 | 15454 | 15579 | 31,033 |
| 40 to 44 | 15142 | 14930 | 30,072 |
| 45 to 49 | 14795 | 14779 | 29,574 |
| 50 to 54 | 16803 | 17351 | 34,154 |
| 55 to 59 | 16588 | 17278 | 33,866 |
| 60 to 64 | 13860 | 14560 | 28,420 |
| 65 to 69 | 10418 | 11335 | 21,753 |
| 70 to 74 | 6727 | 7968 | 14,695 |
| 75 to 79 | 4806 | 6150 | 10,956 |
| 80 to 84 | 3666 | 5055 | 8,721 |
| 85+ | 3157 | 5800 | 8,957 |
Sedgwick 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 | 215929 | 222131 | 438,060 |
| WAC | 212860 | 216187 | 429,047 |
| WA | 204693 | 207578 | 412,271 |
| NHWAC | 179789 | 184878 | 364,667 |
| NHWA | 172842 | 177498 | 350,340 |
| H | 36265 | 34478 | 70,743 |
| HWAC | 33071 | 31309 | 64,380 |
| HWA | 31851 | 30080 | 61,931 |
| BAC | 28507 | 29344 | 57,851 |
| NHBAC | 26510 | 27360 | 53,870 |
| BA | 23853 | 24426 | 48,279 |
| NHBA | 22527 | 23133 | 45,660 |
| AAC | 12969 | 13549 | 26,518 |
| NHAAC | 12382 | 12973 | 25,355 |
| AA | 10932 | 11409 | 22,341 |
| NHAA | 10605 | 11089 | 21,694 |
| TOM | 8911 | 9417 | 18,328 |
| NHTOM | 7538 | 8042 | 15,580 |
| IAC | 7020 | 7281 | 14,301 |
| NHIAC | 4959 | 5250 | 10,209 |
| IA | 3503 | 3524 | 7,027 |
| NHIA | 2189 | 2207 | 4,396 |
| HIAC | 2061 | 2031 | 4,092 |
| HBAC | 1997 | 1984 | 3,981 |
| HTOM | 1373 | 1375 | 2,748 |
| HIA | 1314 | 1317 | 2,631 |
| HBA | 1326 | 1293 | 2,619 |
| HAAC | 587 | 576 | 1,163 |
| NAC | 554 | 517 | 1,071 |
| NHNAC | 424 | 374 | 798 |
| HAA | 327 | 320 | 647 |
| NA | 302 | 255 | 557 |
| NHNA | 228 | 162 | 390 |
| HNAC | 130 | 143 | 273 |
| HNA | 74 | 93 | 167 |
• Butler County population
34.6 mi, 
79°
• Reno County
38.4 mi, 
298°
• Cowley County
46.1 mi, 
132°
• Harvey County
25.5 mi, 
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• McPherson County
50.4 mi, 
348°
• Sumner County
30.8 mi, 
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• Marion County
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• Rice County
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• Kingman County
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• Harper County
47.6 mi, 
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[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
*Cowley, Otoe Kansas Notes
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