The metropolitan area was originally defined as only including Ingham County in 1950, but Eaton and Clinton counties were added in 1960. Ionia County was added in 1973, but taken out a decade later for the 1990 Census.[4]Shiawassee County was added in 2018 after commuting flows increased enough for it to qualify as an "outlying county"[5] but was removed when core-based statistical areas (CBSAs) were re-delineated in 2023.[6] It forms a combined statistical area (CSA) with Metro Lansing designated the Lansing-East Lansing-Owosso, MI CSA.
As of the census[9] of 2010, there were 464,036 people, 183,442 households, and 112,131 families residing within the MSA. The racial makeup of the MSA was 81.6% White, 8.9% African American, 0.5% Native American, 3.8% Asian, 0.03% Pacific Islander, 1.9% from other races, and 3.3% from two or more races. Hispanic or Latino of any race were 3.9% of the population.
As of the 2010 American Community Survey estimates, the median income for a household in the MSA was $47,731, and the median income for a family was $60,602. The per capita income for the MSA was $23,359. The region's foreign-born population sat at 7.0%.