Mayfield township

County:: DeKalb County
County Seat:: No
Area (mi²):: 34.928
State:: Illinois

Mayfield township is located in DeKalb County, Illinois. Mayfield township has a 2025 population of 887. Mayfield township is currently declining at a rate of -0.56% annually and its population has decreased by -2.42% since the most recent census, which recorded a population of 909 in 2020.

The average household income in Mayfield township is $118,385 with a poverty rate of 6.85%. The median age in Mayfield township is 37.1 years: 37.2 years for males, and 37 years for females.

Demographics

The racial composition of Mayfield township includes 89.49% White, 4.78% Black or African American, and smaller percentages for 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	562	89.49%
Two or more races	36	5.73%
Black or African American	30	4.78%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Mayfield township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mayfield township's average per capita income is $51,705. Household income levels show a median of $90,250. The poverty rate stands at 6.85%.

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	$114,423	-
Families	$113,269	$145,387
Households	$90,250	$118,385
Non Families	$50,917	$56,681

$51,705

Average Income

$90,250

Median Household Income

6.85%

Poverty Rate