St. Jacob

County:: Madison County
County Seat:: No
Area (mi²):: 0.847
State:: Illinois

St. Jacob is a village located in Madison County, Illinois. St. Jacob has a 2025 population of 1,365. St. Jacob is currently declining at a rate of -0.15% annually and its population has decreased by -0.66% since the most recent census, which recorded a population of 1,374 in 2020.

The average household income in St. Jacob is $108,629 with a poverty rate of 2.85%. The median age in St. Jacob is 33.7 years: 33.8 years for males, and 33.6 years for females.

Demographics

The racial composition of St. Jacob includes 93.32% White, 3.71% other race, and smaller percentages for Two or more races, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Other race

Two or more races

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,509	93.32%
Other race	60	3.71%
Two or more races	42	2.6%
Asian	6	0.37%
Black or African American	0	0%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

St. Jacob Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Jacob's average per capita income is $61,715. Household income levels show a median of $107,188. The poverty rate stands at 2.85%.

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	$118,315	-
Families	$117,636	$121,047
Households	$107,188	$108,629
Non Families	$35,250	$53,498

$61,715

Average Income

$107,188

Median Household Income

2.85%

Poverty Rate