Sandwich township Flag

Sandwich township

County:
DeKalb County
County Seat:
No
Area (mi²):
15.264
State:
Illinois

Sandwich township is located in DeKalb County, Illinois. Sandwich township has a 2026 population of 7,734. Sandwich township is currently growing at a rate of 0.91% annually and its population has increased by 2.91% since the most recent census, which recorded a population of 7,515 in 2020.

The median household income in Sandwich township is $80,807 with a poverty rate of 10.14%. The median age in Sandwich township is 39.5 years: 37.2 years for males, and 41.7 years for females. For every 100 females there are 99.7 males.

7.7K
Total Population
507
Density (mi²)
70 0.91%
Growth

Sandwich township Population

Sandwich township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20267,734700.91%
20257,664700.92%
20247,594700.93%
20237,524510.68%
20227,473-34-0.45%
20217,507-8-0.11%
20207,515-13-0.17%
20197,716370.48%
20187,67920.03%
20177,677130.17%
20167,664-6-0.08%
20157,670-25-0.32%
20147,695300.39%
20137,665-2-0.03%
20127,66740.05%
20117,663-46-0.6%
20107,706-2-0.03%

Median Age

Overall: 39.5 years
Female: 41.7 years
Male: 37.2 years

Sandwich township Adults

There are 5,650 adults, (1,591 of whom are seniors) in Sandwich township.

Sex Ratio

Female: 3,771 (50.1%)
Male: 3,758 (49.9%)

Demographics

The racial composition of Sandwich township includes 84.38% White, 4.65% other race, and smaller percentages for Asian, Native American, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White6,35384.38%
Two or more races6758.97%
Other race3504.65%
Asian791.05%
Native American460.61%
Black or African American260.35%
Race
Population ↓
Percentage (of total)
Two or more races3003.98%
Other race2593.44%
White2323.08%
Native American390.52%
Race
Population ↓
Percentage (of total)
White6,12181.3%
Two or more races3754.98%
Other race911.21%
Asian791.05%
Black or African American260.35%
Native American70.09%

Sandwich township Marital Status

Economics and Income Statistics

Sandwich township 's average per capita income is $44,446. Household income levels show a median of $80,807. The poverty rate stands at 10.14%.

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$112,698-
Families$96,341$110,859
Households$80,807$93,538
Non Families$51,923$51,103

$44,446

Average Income

$80,807

Median Household Income

10.14%

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)