Lambertville is an unincorporated community located in Monroe County, Michigan. It is a Census-designated place (CDP) used for statistical purposes. As of the 2000 census, the community had a total population of 9,299.
According to the United States Census Bureau, the community has a total area of 15.8 km2 (6.1 mi2). 15.7 km2 (6.1 mi2) of it is land and 0.1 km2 (0.04 mi2) of it is water. The total area is 0.33% water.