St Augustine

County:: Knox County
County Seat:: No
Area (mi²):: 0.593
State:: Illinois

St. Augustine is a village located in Knox County, Illinois. St. Augustine has a 2025 population of 110. St. Augustine is currently declining at a rate of -0.9% annually and its population has decreased by -5.98% since the most recent census, which recorded a population of 117 in 2020.

The average household income in St. Augustine is $58,994 with a poverty rate of 17.07%. The median age in St. Augustine is 54.2 years: 54.3 years for males, and 54.1 years for females.

Demographics

The racial composition of St. Augustine includes 99.19% White, and smaller percentages for Two or more races, Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	122	99.19%
Two or more races	1	0.81%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

St. Augustine Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Augustine's average per capita income is $41,071. Household income levels show a median of $49,375. The poverty rate stands at 17.07%.

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
Families	$58,250	$61,616
Households	$49,375	$58,994
Married Families	$47,500	-
Non Families	-	$55,262

$41,071

Average Income

$49,375

Median Household Income

17.07%

Poverty Rate