New Berlin (German: Neues Berlin) is a village in Sangamon County, Illinois, United States. The population was 1,030 at the 2000 census, and 1,137 at a 2009 estimate. It is part of the Springfield, Illinois Metropolitan Statistical Area.
New Berlin is located at 39°43′31″N 89°54′43″W / 39.72528°N 89.91194°W / 39.72528; -89.91194 (39.725206, -89.911992).
According to the 2010 census, New Berlin has a total area of 1.14 square miles (2.95 km), all land.
As of the census of 2000, there were 1,030 people, 428 households, and 296 families residing in the village. The population density was 929.3 people per square mile (358.3/km²). There were 459 housing units at an average density of 414.1 per square mile (159.7/km²). The racial makeup of the village was 98.35% White, 0.39% African American, 0.19% Native American, 0.68% from other races, and 0.39% from two or more races. Hispanic or Latino of any race were 0.68% of the population.
There were 428 households out of which 32.7% had children under the age of 18 living with them, 58.4% were married couples living together, 8.2% had a female householder with no husband present, and 30.8% were non-families. 28.5% of all households were made up of individuals and 11.9% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 2.94.
In the village, the population was spread out with 25.3% under the age of 18, 7.1% from 18 to 24, 31.6% from 25 to 44, 21.5% from 45 to 64, and 14.6% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 90.7 males. For every 100 females age 18 and over, there were 90.3 males.
The median income for a household in the village was $41,635, and the median income for a family was $50,139. Males had a median income of $35,417 versus $22,614 for females. The per capita income for the village was $19,313. About 4.0% of families and 5.8% of the population were below the poverty line, including 8.5% of those under age 18 and 7.6% of those age 65 or over.