| Official Name: | New Haven Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Gallatin County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Gallatin County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Gallatin |
| Established Title: | Established |
| Established Date: | November 5, 1890 |
| Area Total Sq Mi: | 45.54 |
| Area Land Sq Mi: | 43.69 |
| Area Water Sq Mi: | 1.85 |
| Area Water Percent: | 4.06 |
| Population As Of: | 2020 |
| Population Total: | 446 |
| Population Density Sq Mi: | auto |
| Elevation M: | 102 |
| Elevation Ft: | 335 |
| Coordinates: | 37.8433°N -88.0992°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 62867, 62871 62979, 62984 |
| Blank Name: | FIPS code |
| Blank Info: | 17-059-52519 |
| Unit Pref: | Imperial |
New Haven Township is one of ten townships in Gallatin County, Illinois, USA. As of the 2020 census, its population was 446 and it contained 228 housing units.[1]
According to the 2021 census gazetteer files, New Haven Township has a total area of 45.54sqmi, of which 43.69sqmi (or 95.94%) is land and 1.85sqmi (or 4.06%) is water.[2]
Within the township lies the Duffy site, a Late Woodland Native American archaeological site located southeast of the village of New Haven.[3]
As of the 2020 census there were 446 people, 199 households, and 114 families residing in the township. The population density was 9.79PD/sqmi. There were 228 housing units at an average density of 5.01/sqmi. The racial makeup of the township was 96.64% White, 0.00% African American, 0.00% Native American, 0.67% Asian, 0.00% Pacific Islander, 0.00% from other races, and 2.69% from two or more races. Hispanic or Latino of any race were 0.22% of the population.
There were 199 households, out of which 29.10% had children under the age of 18 living with them, 48.74% were married couples living together, 7.54% had a female householder with no spouse present, and 42.71% were non-families. 27.60% of all households were made up of individuals, and 9.50% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.36.
The township's age distribution consisted of 15.8% under the age of 18, 20.6% from 18 to 24, 18% from 25 to 44, 32.6% from 45 to 64, and 13.1% who were 65 years of age or older. The median age was 43.6 years. For every 100 females, there were 85.1 males. For every 100 females age 18 and over, there were 83.3 males.
The median income for a household in the township was $44,375, and the median income for a family was $63,000. Males had a median income of $46,602 versus $18,393 for females. The per capita income for the township was $21,289. About 7.9% of families and 21.9% of the population were below the poverty line, including 17.1% of those under age 18 and 16.2% of those age 65 or over.