| Unit Pref: | Imperial |
| Settlement Type: | Township |
| Official Name: | New Trier Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Cook |
| Leader Title: | Supervisor |
| Area Total Km2: | 42.21 |
| Area Land Km2: | 41.43 |
| Area Water Km2: | 0.76 |
| Area Water Percent: | 1.80 |
| Population As Of: | 2020 |
| Population Total: | 57371 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Blank Name: | FIPS code |
| Blank Info: | 17-031-52909 |
New Trier Township is one of 29 townships in Cook County, Illinois, United States. As of the 2020 census, its population was 57,371.[1]
The township contains New Trier High School, but the borders of the school district do not line up exactly with the borders of the township.
The township covers approximately 16sqmi. The township comprises the villages of Wilmette, Kenilworth, Winnetka, Glencoe, and portions of Glenview and Northfield. There is also a small unincorporated area near Winnetka known as Indian Hill because of the nearby country club of the same name.[2]
As of the 2020 census, there were 57,371 people living in the township. The population density was approximately 3,500/sq mi (1,400/km2). There were 21,114 housing units. The racial makeup of the township was 82.5% White, 8.8% Asian, 0.8% Black or African American, 1.1% from other races, and 6.8% from two or more races. Hispanic or Latino of any race were 4.6% of the population.
The median age in the township was 45.8 years. 29.3% of the population was under 18 years, and 19.7% were 65 years or older.
There were 20,447 households, out of which 38.9% had people under the age of 18 living with them, and 35.9% had people 65 years or older living with them. 69.2% of households were married couples living together, 19.5% had a female householder with no spouse present, 10.3% had a male householder with no spouse present, and 1.0% were cohabiting couples living together. The average household size was 2.72 and the average family size 3.20.
The median income for a household in the township was $177,672, and the median income for a family was $227,204. 3.3% of residents were below the poverty line.