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 and multiracial populations.

Population by Race

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%

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