Originally under the local government of the town of Muskego, it became the town of Mentor in 1839 and a year later was given the name New Berlin. The city has grown rapidly since its incorporation, although recent development has slowed a bit said Greg Kessler, of the Planning and Community Development Department. While new proposals such as the city center are making headlines, the actual development in the area is steady. Kessler said New Berlin is the sixth largest city in Wisconsin in terms of land area, but only 40 to 50 percent of it is actually developed. One such developed area is the industrial park.
New Berlin boasts the largest industrial park in the state of Wisconsin.
Seven elementary schools and two middle and high schools serve the area. 18695 W. Cleveland Ave. W. Cleveland Ave.