Marquette County, Michigan Demographics 2026

Population Overview

Marquette County is located in Michigan with a total population of 66,430. It is the 30th most populous county out of 83 in Michigan. The county encompasses 3 Census-designated places.

Age Demographics

The median age in Marquette County is 39.2 years. This is 2% lower than the state median of 40.1 years.

Economy, Income & Housing

The median household income in Marquette County is $64,675. This is 9% lower than the state median of $71,149. Compared to the national median of $78,538, household income here is 18% lower. The poverty rate stands at 13.6%. This is 4% higher than the state poverty rate of 13.1%. The unemployment rate is 4.9%. This is 16% lower than the state rate of 5.8%. The median home value is $202,000. Housing costs are 7% lower than the state median of $217,600. The home-value-to-income ratio is 3.1x. 71.2% of occupied housing units are owner-occupied. This homeownership rate is 2% lower than the state average of 72.9%.

Race & Ethnicity

Marquette County has a predominantly White (non-Hispanic) population, comprising 90.9% of all residents. Hispanic or Latino residents account for 2.0%. The Black or African American population (1.5%) is well below the state average of 13.2%. The Hispanic or Latino population (2.0%) is well below the state average of 5.7%. The Asian population (0.5%) is well below the state average of 3.3%.

Education

35.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 13% higher than the state rate of 31.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.5%.