St. John

County:: Stafford County
County Seat:: Yes
Area (mi²):: 1.944
State:: Kansas

St. John is a city located in Stafford County, Kansas. St. John has a 2025 population of 1,137. It is also the county seat of Stafford County. St. John is currently declining at a rate of -1.47% annually and its population has decreased by -6.88% since the most recent census, which recorded a population of 1,221 in 2020.

The average household income in St. John is $85,605 with a poverty rate of 15.38%. The median age in St. John is 35.5 years: 31.9 years for males, and 42.7 years for females.

Demographics

The racial composition of St. John includes 86.93% White, 3.69% other race, and smaller percentages for Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,084	86.93%
Two or more races	93	7.46%
Other race	46	3.69%
Native American	24	1.92%
Black or African American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

St. John Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. John's average per capita income is $42,411. Household income levels show a median of $71,726. The poverty rate stands at 15.38%.

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	$92,500	-
Families	$91,141	$93,535
Households	$71,726	$85,605
Non Families	$42,786	$66,195

$42,411

Average Income

$71,726

Median Household Income

15.38%

Poverty Rate