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Washtenaw County, MI Demographics

Washtenaw County, MI is the 6th most populous of 83 counties in Michigan, with 372,258 residents across 706 square miles. That is about 527 people per square mile.

At the 2020 census

Population 372,258
Land area 706 sq mi
Density 527 / sq mi

Data: 2020 Census · American Community Survey 2024

How Washtenaw County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Washtenaw County, MI

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Washtenaw County, MI — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Washtenaw County, MI

Name Population Sq mi Per sq mi
Census Tract 4610 7,371 35.1 210
Census Tract 4005 7,235 0.4 18,688
Census Tract 4640 7,018 34.3 205
Census Tract 4440 6,696 30.3 221
Census Tract 4074 6,466 2.2 2,879
Census Tract 4234 6,368 3.3 1,909
Census Tract 9801.01 6,052 0.3 21,734
Census Tract 4560 5,914 5.7 1,045
Census Tract 4036 5,818 1.4 4,193
Census Tract 4134.02 5,586 2.1 2,713
Census Tract 4022.01 5,503 0.7 7,636
Census Tract 4027 5,396 1.3 4,227
Census Tract 4070 5,215 32.2 162
Census Tract 4530 5,212 9.9 524
Census Tract 4132 5,190 4.1 1,269
Census Tract 4162 5,169 7.6 682
Census Tract 4053 5,133 2.8 1,828
Census Tract 4006 5,090 0.7 7,543
Census Tract 4550 5,072 9.1 558
Census Tract 4127 4,983 2.3 2,138
Census Tract 4052 4,897 1.2 3,982
Census Tract 4320 4,764 109.0 44
Census Tract 4046 4,751 1.4 3,371
Census Tract 4310 4,626 37.9 122
Census Tract 4134.01 4,607 2.0 2,321
Census Tract 4056 4,544 1.0 4,717
Census Tract 4045 4,421 1.5 3,031
Census Tract 4250 4,380 15.6 282
Census Tract 4033 4,220 1.5 2,804
Census Tract 4003 4,212 0.2 17,845
Census Tract 4026.01 4,091 0.8 4,815
Census Tract 4480 4,024 34.5 116
Census Tract 4222.02 3,923 26.9 146
Census Tract 4103 3,871 0.6 6,323
Census Tract 4211 3,865 1.1 3,480
Census Tract 4650.02 3,810 5.2 727
Census Tract 4200 3,745 12.4 301
Census Tract 4119 3,743 1.4 2,728
Census Tract 4121 3,732 1.7 2,133
Census Tract 4120 3,728 1.4 2,637
Census Tract 4540.02 3,719 1.7 2,220
Census Tract 9801.02 3,713 0.4 10,234
Census Tract 4149 3,704 1.3 2,929
Census Tract 4160 3,686 1.3 2,755
Census Tract 4060 3,673 15.2 242
Census Tract 4130 3,635 1.1 3,345
Census Tract 4158 3,608 2.3 1,576
Census Tract 4104 3,584 1.3 2,807
Census Tract 4222.01 3,582 7.3 491
Census Tract 4008 3,410 0.2 19,623
Census Tract 4032 3,369 1.2 2,746
Census Tract 4202 3,338 24.3 138
Census Tract 4470 3,311 32.6 102
Census Tract 4101 3,306 0.4 9,031
Census Tract 4464 3,215 2.2 1,473
Census Tract 4140 3,193 0.5 6,177
Census Tract 4038 3,153 1.4 2,319
Census Tract 4076 3,151 0.8 3,997
Census Tract 4102 3,145 0.8 3,928
Census Tract 4034 3,114 0.6 5,470
Census Tract 4145 3,073 1.1 2,688
Census Tract 4041 3,069 0.6 4,874
Census Tract 4035 3,026 0.6 5,388
Census Tract 4143 3,025 0.6 5,026
Census Tract 4004 3,014 0.4 7,610
Census Tract 4106 3,007 0.7 4,242
Census Tract 4123 2,990 0.6 4,801
Census Tract 4142 2,930 0.6 5,143
Census Tract 4021 2,917 0.6 5,104
Census Tract 4023 2,813 1.6 1,771
Census Tract 4043 2,696 0.9 3,060
Census Tract 4112 2,665 0.5 5,112
Census Tract 4450 2,656 32.0 83
Census Tract 4236 2,606 1.0 2,508
Census Tract 4660 2,604 26.8 97
Census Tract 4126 2,602 0.5 5,301
Census Tract 4156 2,594 2.9 886
Census Tract 4007 2,569 0.4 6,349
Census Tract 4110 2,490 0.3 9,000
Census Tract 4152 2,407 0.7 3,307
Census Tract 9805 2,376 0.3 7,613
Census Tract 4055 2,365 0.9 2,685
Census Tract 4117 2,331 0.5 5,068
Census Tract 4025 2,311 0.5 4,755
Census Tract 4044 2,275 0.5 4,156
Census Tract 4051 2,264 0.6 3,550
Census Tract 4462 2,252 1.5 1,550
Census Tract 4260.01 2,252 34.7 65
Census Tract 4105 2,153 0.9 2,461
Census Tract 4650.01 2,136 3.7 571
Census Tract 4154 2,123 5.9 361
Census Tract 4054 2,048 0.6 3,198
Census Tract 4260.02 2,036 18.7 109
Census Tract 9803 2,012 0.3 6,685
Census Tract 4042 1,983 0.4 5,457
Census Tract 4134.03 1,962 7.6 257
Census Tract 4001 1,958 0.2 12,306
Census Tract 4108 1,711 0.6 2,887
Census Tract 9806 1,603 0.5 3,123
Census Tract 4147 1,584 0.9 1,824

Showing the 100 most populous of 107 — the rest are shown on the map.

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About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →