Mayfield township Flag

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 2026 population of 904. Mayfield township is currently growing at a rate of 0.33% annually but its population has decreased by -0.66% since the most recent census, which recorded a population of 910 in 2020.

The median household income in Mayfield township is $90,250 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. For every 100 females there are 112.9 males.

904
Total Population
26
Density (mi²)
3 0.33%
Growth

Mayfield township Population

Mayfield township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Mayfield township includes 89.49% White, 4.78% Black or African American, and smaller percentages for and multiracial populations.

Population by Race

White (89.49%)

Two or more races (5.73%)

Black or African American (4.78%)

Race
Population
Percentage (of total)
White56289.49%
Two or more races365.73%
Black or African American304.78%

Mayfield township Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)