Paw Paw Lake is an unincorporated community in Berrien County in the U.S. state of Michigan. It is a census-designated place (CDP) for statistical purposes, without true status as a municipality. The community is located within areas of both Coloma Charter Township and Watervliet Township in the area surrounding Paw Paw Lake and Little Paw Paw Lake, excluding the cities of Watervliet and Coloma. The population of the CDP was 3,511 at the 2010 census.

According to the United States Census Bureau, the CDP has a total Place of 6.8 square miles (17.5 km), of which 5.1 square miles (13.3 km²) is estate and 1.7 square miles (4.3 km), or 24.47%, is water, consisting primarily of Paw Paw Lake and Little Paw Paw Lake. The Paw Paw River, outlet of the lakes, forms most of the southern boundary of the CDP. North Coloma Road forms the western edge of the CDP, Hagar Shore Road the north edge, and highway M-140 the eastern edge. The cities of Watervliet and Coloma touch the CDP at its southeast and southwest corners, respectively.

As of the census of 2000, there were 3,944 people, 1,655 households, and 1,128 families residing in the CDP. The population density was 752.4 inhabitants per square mile (290.5/km²). There were 2,363 housing units at an average density of 450.8 per square mile (174.1/km). The racial makeup of the CDP was 96.63% White, 0.58% Black or African American, 0.51% Native American, 0.68% Asian, 0.05% Pacific Islander, 0.20% from additional races, and 1.34% from two or more races. Hispanic or Latino of any race were 1.37% of the population.

There were 1,655 households, out of which 27.2% had kids under the age of 18 living in the same way as them, 54.3% were married couples bustling together, 11.1% had a female householder once no husband present, and 31.8% were non-families. 27.7% of everything households were made taking place of individuals, and 11.5% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average relations size was 2.83.