Last official estimated population of Genesee County was 424,976 (year 2014)[1]. This was 0.133% of total US population and 4.3% of total Michigan state population. Area of Genesee County is 649.6 mi² (=1682.4 km²), in this year population density was 654.22 p/mi². If population growth rate would be same as in period 2010-2014 (-0.05%/yr), Genesee County population in 2024 would be 422,948 [0].
Historical population of Genesee County for period 1840-2014 [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
[1840-1850] +10.92 %/yr
[1850-1860] +6.46 %/yr
[1860-1870] +4.19 %/yr
[1870-1880] +1.47 %/yr
[1880-1890] +0.05 %/yr
[1890-1900] +0.59 %/yr
[1900-1910] +4.44 %/yr
[1910-1920] +6.89 %/yr
[1920-1930] +5.35 %/yr
[1930-1940] +0.74 %/yr
[1940-1950] +1.74 %/yr
[1950-1960] +3.28 %/yr
[1960-1970] +1.73 %/yr
[1970-1980] +0.14 %/yr
[1980-1990] -0.45 %/yr
[1990-2000] +0.13 %/yr
[2000-2005] +0.29 %/yr
[2005-2010] -0.77 %/yr
[2010-2014] -0.05 %/yr
Looking for settlements in Genesee County? Visit this page: Settlements in Genesee County, MI
Population of Genesee County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 12769 | 12057 | 24,826 |
| 5 to 9 | 13521 | 12718 | 26,239 |
| 10 to 14 | 14337 | 13757 | 28,094 |
| 15 to 19 | 14191 | 13549 | 27,740 |
| 20 to 24 | 13633 | 14000 | 27,633 |
| 25 to 29 | 11590 | 12216 | 23,806 |
| 30 to 34 | 11441 | 12613 | 24,054 |
| 35 to 39 | 11415 | 12311 | 23,726 |
| 40 to 44 | 12709 | 13810 | 26,519 |
| 45 to 49 | 13373 | 14081 | 27,454 |
| 50 to 54 | 14675 | 16166 | 30,841 |
| 55 to 59 | 15053 | 16229 | 31,282 |
| 60 to 64 | 12238 | 13692 | 25,930 |
| 65 to 69 | 9870 | 11377 | 21,247 |
| 70 to 74 | 7050 | 8219 | 15,269 |
| 75 to 79 | 4733 | 6606 | 11,339 |
| 80 to 84 | 3418 | 5190 | 8,608 |
| 85+ | 2820 | 5468 | 8,288 |
Genesee 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 | 192196 | 207315 | 399,511 |
| WAC | 155638 | 164195 | 319,833 |
| WA | 151082 | 159409 | 310,491 |
| NHWAC | 149843 | 158334 | 308,177 |
| NHWA | 145654 | 153930 | 299,584 |
| BAC | 42580 | 49007 | 91,587 |
| NHBAC | 41827 | 48184 | 90,011 |
| BA | 39518 | 45704 | 85,222 |
| NHBA | 38987 | 45115 | 84,102 |
| H | 6640 | 6744 | 13,384 |
| HWAC | 5795 | 5861 | 11,656 |
| HWA | 5428 | 5479 | 10,907 |
| TOM | 5023 | 5315 | 10,338 |
| NHTOM | 4616 | 4899 | 9,515 |
| IAC | 2955 | 3327 | 6,282 |
| AAC | 2887 | 3175 | 6,062 |
| NHAAC | 2785 | 3086 | 5,871 |
| NHIAC | 2559 | 2908 | 5,467 |
| AA | 2016 | 2351 | 4,367 |
| NHAA | 1961 | 2311 | 4,272 |
| IA | 1134 | 1235 | 2,369 |
| NHIA | 925 | 1023 | 1,948 |
| HBAC | 753 | 823 | 1,576 |
| HBA | 531 | 589 | 1,120 |
| HTOM | 407 | 416 | 823 |
| HIAC | 396 | 419 | 815 |
| HIA | 209 | 212 | 421 |
| NAC | 184 | 170 | 354 |
| NHNAC | 163 | 141 | 304 |
| HAAC | 102 | 89 | 191 |
| NA | 63 | 45 | 108 |
| HAA | 55 | 40 | 95 |
| NHNA | 53 | 37 | 90 |
| HNAC | 21 | 29 | 50 |
| HNA | 10 | 8 | 18 |
• Oakland County population
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• Ingham County
44.5 mi, 
229°
• Saginaw County
27.6 mi, 
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• Livingston County
30.7 mi, 
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• Bay County
48.8 mi, 
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• Lapeer County
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• Clinton County
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• Shiawassee County
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• Tuscola County
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22°
[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
*Oakland Michigan Notes
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