Last official estimated population of Marquette County was 67,101 (year 2014)[1]. This was 0.021% of total US population and 0.7% of total Michigan state population. Area of Marquette County is 3,424.5 mi² (=8869.3 km²), in this year population density was 19.59 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Marquette County population in 2026 would be 67,173 [0].
Historical population of Marquette County for period 1850-2014 [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

[1850-1860] +35.42 %/yr
[1860-1870] +17.57 %/yr
[1870-1880] +5.96 %/yr
[1880-1890] +4.52 %/yr
[1890-1900] +0.43 %/yr
[1900-1910] +1.26 %/yr
[1910-1920] -0.21 %/yr
[1920-1930] -0.38 %/yr
[1930-1940] +0.68 %/yr
[1940-1950] +0.11 %/yr
[1950-1960] +1.65 %/yr
[1960-1970] +1.42 %/yr
[1970-1980] +1.37 %/yr
[1980-1990] -0.44 %/yr
[1990-2000] -0.92 %/yr
[2000-2005] +0.35 %/yr
[2005-2010] +0.39 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Marquette County? Visit this page: Settlements in Marquette County, MI
Population of Marquette County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1694 | 1619 | 3,313 |
| 5 to 9 | 1763 | 1740 | 3,503 |
| 10 to 14 | 1678 | 1661 | 3,339 |
| 15 to 19 | 2450 | 2519 | 4,969 |
| 20 to 24 | 3881 | 3807 | 7,688 |
| 25 to 29 | 2143 | 1866 | 4,009 |
| 30 to 34 | 2171 | 1905 | 4,076 |
| 35 to 39 | 1888 | 1771 | 3,659 |
| 40 to 44 | 1888 | 1651 | 3,539 |
| 45 to 49 | 1938 | 1836 | 3,774 |
| 50 to 54 | 2296 | 2281 | 4,577 |
| 55 to 59 | 2524 | 2568 | 5,092 |
| 60 to 64 | 2504 | 2419 | 4,923 |
| 65 to 69 | 1954 | 1833 | 3,787 |
| 70 to 74 | 1255 | 1265 | 2,520 |
| 75 to 79 | 898 | 1047 | 1,945 |
| 80 to 84 | 599 | 765 | 1,364 |
| 85+ | 597 | 1002 | 1,599 |
Marquette 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 | 33618 | 33067 | 66,685 |
| WAC | 32320 | 32438 | 64,758 |
| NHWAC | 31856 | 32010 | 63,866 |
| WA | 31635 | 31780 | 63,415 |
| NHWA | 31207 | 31399 | 62,606 |
| IAC | 1052 | 1032 | 2,084 |
| NHIAC | 1006 | 971 | 1,977 |
| BAC | 1169 | 396 | 1,565 |
| NHBAC | 1144 | 355 | 1,499 |
| TOM | 721 | 690 | 1,411 |
| NHTOM | 682 | 639 | 1,321 |
| IA | 624 | 629 | 1,253 |
| NHIA | 603 | 598 | 1,201 |
| BA | 969 | 203 | 1,172 |
| NHBA | 956 | 183 | 1,139 |
| H | 503 | 488 | 991 |
| HWAC | 464 | 428 | 892 |
| HWA | 428 | 381 | 809 |
| AAC | 301 | 363 | 664 |
| NHAAC | 296 | 352 | 648 |
| AA | 164 | 241 | 405 |
| NHAA | 163 | 239 | 402 |
| HIAC | 46 | 61 | 107 |
| HTOM | 39 | 51 | 90 |
| HBAC | 25 | 41 | 66 |
| NAC | 24 | 41 | 65 |
| NHNAC | 21 | 37 | 58 |
| HIA | 21 | 31 | 52 |
| HBA | 13 | 20 | 33 |
| NA | 8 | 12 | 20 |
| NHNA | 7 | 9 | 16 |
| HAAC | 5 | 11 | 16 |
| HNAC | 3 | 4 | 7 |
| HNA | 1 | 3 | 4 |
| HAA | 1 | 2 | 3 |
• Delta County population
67.3 mi,
151°
• Houghton County
55.7 mi,
295°
• Dickinson County
46.5 mi,
196°
• Menominee County
77.4 mi,
176°
• Iron County
56.6 mi,
233°
• Alger County
56.4 mi,
58°
• Baraga County
37 mi,
274°
• Schoolcraft County
79.4 mi,
123°
• Florence County
67 mi,
215°
• Keweenaw County
75.6 mi,
339°
[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
See note 10 Michigan Notes
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