Last official estimated population of Chase County was 2,788 (year 2014)[1]. This was 0.001% of total US population and 0.1% of total Kansas state population. Area of Chase County is 777.7 mi² (=2014.3 km²), in this year population density was 3.58 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Chase County population in 2025 would be 2,783 [0].
Historical population of Chase County for period 1860-2014 [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

[1860-1870] +9.35 %/yr
[1870-1880] +11.9 %/yr
[1880-1890] +3.08 %/yr
[1890-1900] +0.02 %/yr
[1900-1910] -0.91 %/yr
[1910-1920] -0.52 %/yr
[1920-1930] -0.27 %/yr
[1930-1940] -0.91 %/yr
[1940-1950] -2.69 %/yr
[1950-1960] -2.07 %/yr
[1960-1970] -1.39 %/yr
[1970-1980] -0.29 %/yr
[1980-1990] -0.91 %/yr
[1990-2000] +0.03 %/yr
[2000-2005] -0.45 %/yr
[2005-2010] -1.19 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in Chase County? Visit this page: Settlements in Chase County, KS
Population of Chase County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 60 | 60 | 120 |
| 5 to 9 | 78 | 82 | 160 |
| 10 to 14 | 76 | 96 | 172 |
| 15 to 19 | 92 | 85 | 177 |
| 20 to 24 | 88 | 59 | 147 |
| 25 to 29 | 73 | 48 | 121 |
| 30 to 34 | 73 | 58 | 131 |
| 35 to 39 | 75 | 59 | 134 |
| 40 to 44 | 84 | 76 | 160 |
| 45 to 49 | 74 | 84 | 158 |
| 50 to 54 | 104 | 95 | 199 |
| 55 to 59 | 89 | 105 | 194 |
| 60 to 64 | 109 | 88 | 197 |
| 65 to 69 | 97 | 101 | 198 |
| 70 to 74 | 79 | 73 | 152 |
| 75 to 79 | 48 | 48 | 96 |
| 80 to 84 | 29 | 56 | 85 |
| 85+ | 30 | 61 | 91 |
Chase 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 | 1309 | 1316 | 2,625 |
| WA | 1288 | 1299 | 2,587 |
| NH | 1290 | 1293 | 2,583 |
| NHWAC | 1245 | 1277 | 2,522 |
| NHWA | 1224 | 1260 | 2,484 |
| H | 68 | 41 | 109 |
| HWA | 64 | 39 | 103 |
| HWAC | 64 | 39 | 103 |
| BAC | 40 | 9 | 49 |
| NHBAC | 39 | 9 | 48 |
| IAC | 23 | 19 | 42 |
| TOM | 22 | 17 | 39 |
| NHTOM | 22 | 17 | 39 |
| NHIAC | 20 | 18 | 38 |
| BA | 33 | 2 | 35 |
| NHBA | 32 | 2 | 34 |
| IA | 13 | 10 | 23 |
| NHIA | 10 | 9 | 19 |
| AAC | 8 | 7 | 15 |
| NHAAC | 8 | 6 | 14 |
| AA | 2 | 6 | 8 |
| NHAA | 2 | 5 | 7 |
| HIA | 3 | 1 | 4 |
| HIAC | 3 | 1 | 4 |
| NAC | 2 | 2 | 4 |
| NHNAC | 2 | 2 | 4 |
| HBAC | 1 | 0 | 1 |
| HBA | 1 | 0 | 1 |
| HAAC | 0 | 1 | 1 |
| HAA | 0 | 1 | 1 |
| HNAC | 0 | 0 | 0 |
| NA | 0 | 0 | 0 |
| NHNA | 0 | 0 | 0 |
| HTOM | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
• Butler County population
38.7 mi,
200°
• Geary County
49.4 mi,
349°
• Harvey County
48.9 mi,
249°
• Lyon County
25.8 mi,
65°
• Dickinson County
49.7 mi,
322°
• Marion County
27.9 mi,
278°
• Coffey County
47.1 mi,
95°
• Wabaunsee County
50 mi,
25°
• Greenwood County
34.8 mi,
146°
• Morris County
27 mi,
353°
[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
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