Michigan Counties Preliminary Projections to the year 2020
Michigan and Counties by Age and Sex Preliminary Projections to the year 2020
Metropolitan Statistical Areas (MSA) Preliminary Projections to the year 2020
The population projection are prepared by the Senior Demographer, Office of the State Budget pursuant to Public Act 431 of 1984, section 343.
The cohort-component method is used to prepare the projections for every five years from 1995 to 2020 based on 1990 census counts and projected fertility, mortality, and migration rates by age, sex, and race. Where appropriate, the preliminary July 1, 1995 population estimates developed by the U.S. Census Bureau through the Federal-State Cooperative Program are used to adjust the 1995 projections and benchmark the projections from July 1, 1995. The projections represent the July 1 population for the subsequent projection years. The preliminary projections are subject to revision when more recent fertility, mortality, and migration data become available.
The projections represent what the future population would be if population changes follow the assumed fertility, mortality, and migration patterns. The projections heavily rely on current vital statistics and population data as the basis to derive assumptions for future trends. Any dramatic social and economic changes would affect the current population changes. The State Demographer will continue to monitor population trends and update the projections. The projections are not precise population counts. The figures should be rounded to the nearest one hundred for county projections and to the nearest one thousand for the state.