Population Estimates
2010–2023 Vintage Population Estimates: The Census Bureau releases single–race population estimates of the July 1st resident population for Michigan by county. The estimates are based on the April 1st 2010 Census counts for years 2010–2020 and calculated using the distributive cohort component methodology. Population estimates for years 2021–2023 are based on the Blended Base produced by the US Census Bureau in lieu of the April 1, 2020 decennial population count.
2000–2019 Bridged Population Estimates: The 2000–2019 population estimates by age, sex and bridged race were aggregated from the bridged, single–race estimates released by the National Center for Health Statistics (NCHS) in June 2019.
2020–2022 Bridged Population Estimates: The 2020–2022 population estimates by age, sex and bridged race were estimated by the Division for Vital Records & Health Statistics from US Census Vintage data.
About single–race estimates: Race information provided in the U.S. Census Bureau Summary File 1: 2010 Census of Population and Housing was collected differently than for the 1990 Census. That is, in the 2010 Census respondents could classify themselves as being of more than one race. As a result, race counts by the Census Bureau are not mutually exclusive. The National Center for Health Statistics and many other federal and non-federal organizations throughout the country still use forms that capture racial information in single, mutually exclusive categories. NCHS entered into an agreement with the Census Bureau to convert the Census Bureau's multiple–race resident population counts to single–race estimates. For more information on the methodologies used to develop these estimates visit: the National Vital Statistics System, U.S. Census Populations With Bridged Race Categories.
The 2000–2009 Minor Civil Division (MCD) data were originally estimated in 2009 using US 2000 Census population estimates; Michigan birth and death certificate counts; and PopStats block–level migration estimates and population distributions of race. The 2000–2009 data were adjusted for error of closure using the 2010 census. The 2010 MCD population was bridged at the census block–level based on the National Center for Health Statistics bridged race methodlogy.
The 2010–2023 MCD data were estimated from PopStats block–level population estimates by age and sex. The population was proportionally fitted to Michigan Sub–County Population Estimates for MCDs, prepared by the US Census.
2011–2023 Detroit City Population: The 2010 age–race proportions from the US Census were applied to 2011–2019 NCHS Wayne county bridged race populations to estimate the population for Detroit City and Wayne County Health Department. Alternate estimates of Wayne county and Detroit City may be found at Southeast Michigan Council of Governments (SEMCOG).
1990–1999 population estimates: The 1990–1999 population estimates by age, sex and race provided on this site are taken from the bridged, single–race estimates released by the National Center for Health Statistics (NCHS) in July, 2010. The U.S. Census Bureau produced these revised intercensal estimates for NCHS by using the bridged single-race methodology described above.
Data Source: The Michigan Department of Community Health, Division for Vital Records and Health Statistics prepared the tables available on this site by using population estimates developed as stated above. Population estimates are subject to error due to the limitations of available data and demographic methodologies. The average level of error increases in estimates for geographic entities with smaller populations and especially for population subgroups within those geographic entities.
Geographic Area Reporting: This site provides population estimates for the State of Michigan, all Michigan counties, Michigan local health departments and the larger MCDs in Michigan. Estimates for the population served by Detroit City Health Department and Wayne County Health Department was estimated by Michigan Department of Health and Human Services, Division for Vital Records and Health Statistics. The population estimates developed for NCHS did not delineate estimates below the county level.
.
If you have questions or comments about this web site, please contact Glenn Radford, e-mail radfordg@michigan.gov