Last official estimated population of Alpena County was 29,546 (year 2014)[1]. This was 0.009% of total US population and 0.3% of total Michigan state population. Area of Alpena County is 1,694.9 mi² (=4389.8 km²), in this year population density was 17.43 p/mi². If population growth rate would be same as in period 2010-2014 (-0.04%/yr), Alpena County population in 2024 would be 29,416 [0].
Historical population of Alpena 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] +25.25 %/yr
[1870-1880] +12.3 %/yr
[1880-1890] +5.89 %/yr
[1890-1900] +1.6 %/yr
[1900-1910] +0.9 %/yr
[1910-1920] -1.1 %/yr
[1920-1930] +0.39 %/yr
[1930-1940] +1.12 %/yr
[1940-1950] +0.66 %/yr
[1950-1960] +2.55 %/yr
[1960-1970] +0.73 %/yr
[1970-1980] +0.51 %/yr
[1980-1990] -0.54 %/yr
[1990-2000] +0.22 %/yr
[2000-2005] -0.52 %/yr
[2005-2010] -0.59 %/yr
[2010-2014] -0.04 %/yr
Looking for settlements in Alpena County? Visit this page: Settlements in Alpena County, MI
Population of Alpena County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 677 | 646 | 1,323 |
| 5 to 9 | 802 | 730 | 1,532 |
| 10 to 14 | 841 | 842 | 1,683 |
| 15 to 19 | 884 | 792 | 1,676 |
| 20 to 24 | 825 | 782 | 1,607 |
| 25 to 29 | 686 | 637 | 1,323 |
| 30 to 34 | 785 | 771 | 1,556 |
| 35 to 39 | 725 | 759 | 1,484 |
| 40 to 44 | 808 | 843 | 1,651 |
| 45 to 49 | 851 | 891 | 1,742 |
| 50 to 54 | 1205 | 1215 | 2,420 |
| 55 to 59 | 1264 | 1296 | 2,560 |
| 60 to 64 | 1087 | 1119 | 2,206 |
| 65 to 69 | 924 | 943 | 1,867 |
| 70 to 74 | 689 | 773 | 1,462 |
| 75 to 79 | 529 | 631 | 1,160 |
| 80 to 84 | 350 | 495 | 845 |
| 85+ | 295 | 596 | 891 |
Alpena 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 | 14013 | 14597 | 28,610 |
| WAC | 14003 | 14502 | 28,505 |
| WA | 13818 | 14349 | 28,167 |
| NHWAC | 13805 | 14343 | 28,148 |
| NHWA | 13626 | 14195 | 27,821 |
| H | 214 | 164 | 378 |
| HWAC | 198 | 159 | 357 |
| TOM | 190 | 160 | 350 |
| HWA | 192 | 154 | 346 |
| NHTOM | 183 | 155 | 338 |
| IAC | 160 | 164 | 324 |
| NHIAC | 150 | 155 | 305 |
| BAC | 135 | 121 | 256 |
| NHBAC | 129 | 120 | 249 |
| AAC | 107 | 130 | 237 |
| NHAAC | 102 | 130 | 232 |
| AA | 72 | 101 | 173 |
| NHAA | 68 | 101 | 169 |
| IA | 74 | 89 | 163 |
| NHIA | 68 | 85 | 153 |
| BA | 61 | 58 | 119 |
| NHBA | 59 | 58 | 117 |
| NAC | 17 | 9 | 26 |
| NHNAC | 14 | 8 | 22 |
| HIAC | 10 | 9 | 19 |
| NA | 12 | 4 | 16 |
| NHNA | 9 | 3 | 12 |
| HTOM | 7 | 5 | 12 |
| HIA | 6 | 4 | 10 |
| HBAC | 6 | 1 | 7 |
| HAAC | 5 | 0 | 5 |
| HAA | 4 | 0 | 4 |
| HNAC | 3 | 1 | 4 |
| HNA | 3 | 1 | 4 |
| HBA | 2 | 0 | 2 |
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65.7 mi, 
307°
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48.3 mi, 
144°
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56.9 mi, 
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51.9 mi, 
221°
• Arenac County
61.3 mi, 
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• Crawford County
59.9 mi, 
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• Presque Isle County
41.1 mi, 
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35.5 mi, 284°
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247°
[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
*Mackinac; see note 2 Michigan Notes
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