South Otter township

County:: Macoupin County
County Seat:: No
Area (mi²):: 35.751
State:: Illinois

South Otter township is located in Macoupin County, Illinois. South Otter township has a 2025 population of 438. South Otter township is currently declining at a rate of -0.45% annually and its population has decreased by -3.1% since the most recent census, which recorded a population of 452 in 2020.

The average household income in South Otter township is $132,182 with a poverty rate of 4.64%.The median age in South Otter township is 53.1 years: 60.5 years for males, and 39.3 years for females.

Demographics

The racial composition of South Otter township includes 90.14% White, and smaller percentages for and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	311	90.14%
Two or more races	34	9.86%

South Otter township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Otter township's average per capita income is $55,469. Household income levels show a median of $106,875. The poverty rate stands at 4.64%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$107,031	-
Households	$106,875	$132,182
Families	$105,625	$131,784
Non Families	-	-

$55,469

Average Income

$106,875

Median Household Income

4.64%

Poverty Rate