Last official estimated population of Koochiching County was 13,301 (year 2014)[1]. This was 0.004% of total US population and 0.2% of total Minnesota state population. Area of Koochiching County is 3,154.0 mi² (=8168.8 km²), in this year population density was 4.22 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Koochiching County population in 2026 would be 13,271 [0].
Historical population of Koochiching County for period 1910-2014 [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
[1910-1920] +7.71 %/yr
[1920-1930] +0.41 %/yr
[1930-1940] +1.86 %/yr
[1940-1950] -0.01 %/yr
[1950-1960] +0.73 %/yr
[1960-1970] -0.6 %/yr
[1970-1980] +0.25 %/yr
[1980-1990] -0.75 %/yr
[1990-2000] -1.26 %/yr
[2000-2005] -0.71 %/yr
[2005-2010] -0.79 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in Koochiching County? Visit this page: Settlements in Koochiching County, MN
Population of Koochiching County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 240 | 268 | 508 |
| 5 to 9 | 338 | 318 | 656 |
| 10 to 14 | 390 | 399 | 789 |
| 15 to 19 | 388 | 394 | 782 |
| 20 to 24 | 338 | 312 | 650 |
| 25 to 29 | 300 | 262 | 562 |
| 30 to 34 | 302 | 317 | 619 |
| 35 to 39 | 317 | 287 | 604 |
| 40 to 44 | 339 | 375 | 714 |
| 45 to 49 | 425 | 386 | 811 |
| 50 to 54 | 494 | 504 | 998 |
| 55 to 59 | 626 | 586 | 1,212 |
| 60 to 64 | 594 | 558 | 1,152 |
| 65 to 69 | 455 | 426 | 881 |
| 70 to 74 | 315 | 325 | 640 |
| 75 to 79 | 264 | 270 | 534 |
| 80 to 84 | 156 | 214 | 370 |
| 85+ | 120 | 254 | 374 |
Koochiching 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 | 6314 | 6377 | 12,691 |
| WAC | 6168 | 6211 | 12,379 |
| NHWAC | 6098 | 6146 | 12,244 |
| WA | 6067 | 6101 | 12,168 |
| NHWA | 5999 | 6044 | 12,043 |
| IAC | 233 | 233 | 466 |
| NHIAC | 219 | 215 | 434 |
| IA | 160 | 165 | 325 |
| NHIA | 148 | 153 | 301 |
| TOM | 111 | 112 | 223 |
| NHTOM | 109 | 104 | 213 |
| H | 87 | 78 | 165 |
| BAC | 76 | 73 | 149 |
| NHBAC | 73 | 69 | 142 |
| HWAC | 70 | 65 | 135 |
| HWA | 68 | 57 | 125 |
| BA | 47 | 39 | 86 |
| NHBA | 44 | 38 | 82 |
| AAC | 32 | 50 | 82 |
| NHAAC | 32 | 49 | 81 |
| AA | 13 | 38 | 51 |
| NHAA | 13 | 38 | 51 |
| HIAC | 14 | 18 | 32 |
| HIA | 12 | 12 | 24 |
| NAC | 5 | 6 | 11 |
| HTOM | 2 | 8 | 10 |
| NHNAC | 3 | 5 | 8 |
| HBAC | 3 | 4 | 7 |
| HBA | 3 | 1 | 4 |
| NA | 3 | 0 | 3 |
| HNAC | 2 | 1 | 3 |
| HNA | 2 | 0 | 2 |
| NHNA | 1 | 0 | 1 |
| HAAC | 0 | 1 | 1 |
| HAA | 0 | 0 | 0 |
• St. Louis County population
74.6 mi, 
128°
• Itasca County
52.7 mi, 
171°
• Beltrami County
61.8 mi, 
245°
• Cass County
93 mi, 
196°
• Hubbard County
95.3 mi, 
213°
• Roseau County
99.9 mi, 
290°
• Pennington County
104.6 mi, 
263°
• Clearwater County
86.9 mi, 
237°
• Red Lake County
109.6 mi, 256°
• Lake of the Woods County
62.8 mi, 
305°
[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
*Itasca Minnesota Notes
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