Population.us > Counties > Michigan > Washtenaw County

Population of Washtenaw County

Last official estimated population of Washtenaw County was 345,525 (year 2014)[1]. This was 0.108% of total US population and 3.5% of total Michigan state population. Area of Washtenaw County is 722.4 mi² (=1871.1 km²), in this year population density was 478.29 p/mi². If population growth rate would be same as in period 2010-2014 (+0.05%/yr), Washtenaw County population in 2021 would be 346,813 [0].


Historical population

Historical population of Washtenaw County for period 1830-2014 [1] , [2] , [3]:

Maps: Population, population density, population changes

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.

PopulationDensityChangesLegendsPosition

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Annual growth rate

[1830-1840] +19.28 %/yr
[1840-1850] +1.94 %/yr
[1850-1860] +2.25 %/yr
[1860-1870] +1.5 %/yr
[1870-1880] +0.1 %/yr
[1880-1890] +0.09 %/yr
[1890-1900] +1.24 %/yr
[1900-1910] -0.66 %/yr
[1910-1920] +1.03 %/yr
[1920-1930] +2.84 %/yr
[1930-1940] +2.12 %/yr
[1940-1950] +5.23 %/yr
[1950-1960] +2.51 %/yr
[1960-1970] +3.1 %/yr
[1970-1980] +1.24 %/yr
[1980-1990] +0.67 %/yr
[1990-2000] +1.33 %/yr
[2000-2005] +1.17 %/yr
[2005-2010] +0.15 %/yr
[2010-2014] +0.05 %/yr

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Demography

Population of Washtenaw County by age groups male (M) and female (F)[1b]

Age Gr. (M) (F) Total
0 to 4 9432 9321 18,753
5 to 9 9850 9461 19,311
10 to 14 10266 9719 19,985
15 to 19 15328 15051 30,379
20 to 24 23762 22890 46,652
25 to 29 13652 12934 26,586
30 to 34 11979 11789 23,768
35 to 39 10364 10119 20,483
40 to 44 10483 10753 21,236
45 to 49 10712 11228 21,940
50 to 54 11295 11798 23,093
55 to 59 10529 11563 22,092
60 to 64 9299 10419 19,718
65 to 69 7353 8064 15,417
70 to 74 4795 5619 10,414
75 to 79 2982 3635 6,617
80 to 84 2016 2810 4,826
85+ 1954 3650 5,604

Washtenaw 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 168248 172783 341,031
WAC 137144 140180 277,324
WA 131764 134633 266,397
NHWAC 130214 133107 263,321
NHWA 125295 128151 253,446
BAC 25213 26687 51,900
NHBAC 24420 25817 50,237
BA 22296 23537 45,833
NHBA 21779 23024 44,803
AAC 17691 17975 35,666
NHAAC 17472 17701 35,173
AA 15421 15753 31,174
NHAA 15333 15613 30,946
H 7803 8040 15,843
HWAC 6930 7073 14,003
HWA 6469 6482 12,951
TOM 5800 6050 11,850
NHTOM 5297 5405 10,702
IAC 2120 2361 4,481
NHIAC 1701 1865 3,566
HBAC 793 870 1,663
IA 697 726 1,423
HTOM 503 645 1,148
HBA 517 513 1,030
NHIA 482 511 993
HIAC 419 496 915
NAC 244 313 557
HAAC 219 274 493
NHNAC 207 229 436
HIA 215 215 430
HAA 88 140 228
NA 73 124 197
NHNA 62 79 141
HNAC 37 84 121
HNA 11 45 56

Counties near Washtenaw County

Wayne County population 29.9 mi, 85°
Oakland County 36.7 mi, 39°
Lucas County 43.9 mi, 153°
Ingham County 36.3 mi, 311°
Livingston County 24.4 mi, 351°
Jackson County 29.5 mi, 269°
Monroe County 29.6 mi, 141°
Lenawee County 27.3 mi, 205°
Hillsdale County 48.9 mi, 236°
Fulton County 47.5 mi, 197°


Sources, notices

[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

*Wayne, Macomb Michigan Notes

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