Last official estimated population of Alger County was 9,560 (year 2014)[1]. This was 0.003% of total US population and 0.1% of total Michigan state population. Area of Alger County is 5,047.7 mi² (=13073.6 km²), in this year population density was 1.89 p/mi². If population growth rate would be same as in period 2010-2014 (-0.11%/yr), Alger County population in 2026 would be 9,438 [0].
Historical population of Alger County for period 1890-2014 [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

[1890-1900] +16.84 %/yr
[1900-1910] +2.72 %/yr
[1910-1920] +2.66 %/yr
[1920-1930] -0.68 %/yr
[1930-1940] +0.87 %/yr
[1940-1950] -0.16 %/yr
[1950-1960] -0.78 %/yr
[1960-1970] -0.76 %/yr
[1970-1980] +0.74 %/yr
[1980-1990] -0.28 %/yr
[1990-2000] +0.95 %/yr
[2000-2005] -0.46 %/yr
[2005-2010] -0.07 %/yr
[2010-2014] -0.11 %/yr
Looking for settlements in Alger County? Visit this page: Settlements in Alger County, MI
Population of Alger County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 173 | 152 | 325 |
| 5 to 9 | 202 | 193 | 395 |
| 10 to 14 | 232 | 227 | 459 |
| 15 to 19 | 242 | 204 | 446 |
| 20 to 24 | 323 | 153 | 476 |
| 25 to 29 | 356 | 161 | 517 |
| 30 to 34 | 373 | 188 | 561 |
| 35 to 39 | 308 | 203 | 511 |
| 40 to 44 | 324 | 201 | 525 |
| 45 to 49 | 323 | 255 | 578 |
| 50 to 54 | 388 | 344 | 732 |
| 55 to 59 | 412 | 431 | 843 |
| 60 to 64 | 454 | 392 | 846 |
| 65 to 69 | 365 | 330 | 695 |
| 70 to 74 | 308 | 271 | 579 |
| 75 to 79 | 194 | 223 | 417 |
| 80 to 84 | 127 | 149 | 276 |
| 85+ | 102 | 176 | 278 |
Alger 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 | 5142 | 4191 | 9,333 |
| WAC | 4336 | 4034 | 8,370 |
| NHWAC | 4285 | 3980 | 8,265 |
| WA | 4215 | 3875 | 8,090 |
| NHWA | 4171 | 3827 | 7,998 |
| BAC | 679 | 55 | 734 |
| NHBAC | 670 | 51 | 721 |
| BA | 644 | 8 | 652 |
| NHBA | 641 | 6 | 647 |
| IAC | 275 | 296 | 571 |
| NHIAC | 264 | 288 | 552 |
| IA | 196 | 186 | 382 |
| NHIA | 186 | 181 | 367 |
| TOM | 125 | 166 | 291 |
| NHTOM | 118 | 160 | 278 |
| H | 64 | 62 | 126 |
| HWAC | 51 | 54 | 105 |
| HWA | 44 | 48 | 92 |
| AAC | 41 | 33 | 74 |
| NHAAC | 41 | 31 | 72 |
| AA | 26 | 18 | 44 |
| NHAA | 26 | 17 | 43 |
| HIAC | 11 | 8 | 19 |
| HIA | 10 | 5 | 15 |
| HBAC | 9 | 4 | 13 |
| HTOM | 7 | 6 | 13 |
| HBA | 3 | 2 | 5 |
| NAC | 0 | 3 | 3 |
| NHNAC | 0 | 3 | 3 |
| HAAC | 0 | 2 | 2 |
| HAA | 0 | 1 | 1 |
| HNAC | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
| NHNA | 0 | 0 | 0 |
| NA | 0 | 0 | 0 |
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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
*Schoolcraft Michigan Notes
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