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Washtenaw County, MI

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Washtenaw County, MI
  • Location TypeCounty
  • County SeatAnn Arbor, MI
  • Population344,791
  • Land Area (Square Miles) 705.9700
  • Population Density (Per Square Mile) 488.3999

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Median Age

% Population African American

% Population Hispanic

% Population White

Population Density
(Persons per Square Mile)

Rural-Urban Continuum


Suggested Data Series

TitleLatest YearLatest ValueLatest Rank
Decennial Census Population (County)2010344,791190 of 3170
Decennial Census Population Per Square Mile (County)2010488.40278 of 3170
Percent of African American Population (County)201812.3%718 of 3131
Percent of Hispanic Population (County)20184.8%1452 of 3139
Persistent Poverty Counties (County)201300 of 0 - 1
Rural-Urban Continuum for Counties (County)201322 of 1 - 9
Unemployment Rate (County)20192.9%2447 of 3140
Death Rate (Per 100,000) (County)2016623.502949 of 3105
Percent of Adults Physically Inactive (County)201615.3%3088 of 3141
Age-Adjusted Rate of Diabetes per 1,000 Persons (County)20165.802640 of 3141
Medicare Part D Prescription Enrollment Rate (County)201848.1%1757 of 3137
Farmers' Markets (County)20161769 of 2249
Percent of Children Without a Market Within One Mile (County)20159.5%2631 of 3004
Percent of School-age Children in Poverty (County)201811.4%2623 of 3140
Total Public School Expenditures (County)2017$759,833,000.00192 of 3123
Number of Public Libraries (County)20178222 of 1287
Average Daily Maximum Heat Index (County)201191.891863 of 3103
Percentage of Days with a Good Air Quality Index (County)201981.8%667 of 1006
Greenhouse Gas Direct Emitting Facilities (County)20183563 of 1227
Average Fine Particulate Matter (County)201112.65995 of 3108
FEMA Public Assistance Grant Dollars Obligated for Disasters (County)2005$61,381.51650 of 958
Total Deposits in Banks (County)2016-2017$8,803,091,000.00171 of 3108
Property Taxes as Percent of Income: Five-Year Estimates (County)2006-20104.7%102 of 2773
Percent of Firms Which are Women Owned (County)201236.9%579 of 3093
Manufacturing Establishments with 5 to 9 Employees (County)201857180 of 1961
Immigrant Households Entering County According to Tax Returns (County)2017-201820370 of 389
Estimated Veteran Population Under 45 Years Old (County)20103,205347 of 3143
Total Planted Acres (County)201980,368.101595 of 3034
Online, Mail Order, and Television Retail Sales in 2009 Dollars (County)2050$301,000,000.00357 of 2709
Total Retail and Food Service Sales in 2009 Dollars (County)2050$7,415,000,000.00236 of 3108
Earnings in Management of Companies and Enterprises Occupations in 2009 Dollars (County)2050$386,000,000.00263 of 2178
Population (County)2050447,000218 of 3076
Per Capita Total Personal Income (County)2050$269,260.00229 of 3112
Total Employees (County)2050395,000164 of 3065
Population 18 to 24 Years Old (County)205069,000111 of 2216
African American Male Population 25 Years Old (County)2050498173 of 2780
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