Harvey is a census-designated place (CDP) in Marquette County in the U.S. state of Michigan. The population was 3,244 as of the 2020 census,

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2020 census

As of the 2020 census, Harvey had a population of 3,244. The median age was 43.7 years. 19.5% of residents were under the age of 18 and 21.3% of residents were 65 years of age or older. For every 100 females there were 101.1 males, and for every 100 females age 18 and over there were 102.1 males age 18 and over.

69.0% of residents lived in urban areas, while 31.0% lived in rural areas.

There were 1,346 households in Harvey, of which 26.2% had children under the age of 18 living in them. Of all households, 58.7% were married-couple households, 15.8% were households with a male householder and no spouse or partner present, and 18.5% were households with a female householder and no spouse or partner present. About 23.4% of all households were made up of individuals and 10.6% had someone living alone who was 65 years of age or older.