Portland township Flag

Portland township

County Seat:
No
Area (mi²):
34.701
State:
Illinois

Portland township is located in Whiteside County, Illinois. Portland township has a 2026 population of 427. Portland township is currently growing at a rate of 0.23% annually but its population has decreased by -1.39% since the most recent census, which recorded a population of 433 in 2020.

The median household income in Portland township is $113,148 with a poverty rate of 0%. The median age in Portland township is 45.1 years: 45.2 years for males, and 38.9 years for females. For every 100 females there are 161.9 males.

427
Total Population
12
Density (mi²)
1 0.23%
Growth

Portland township Population

Portland township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Portland township includes 95.6% White, and smaller percentages for and multiracial populations.

Population by Race

White (95.6%)

Two or more races (4.4%)

Race
Population
Percentage (of total)
White34895.6%
Two or more races164.4%

Portland township Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Portland township's average per capita income is $39,766. Household income levels show a median of $113,148. The poverty rate stands at 0%.

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$113,426-
Households$113,148$97,295
Families$112,824$96,756
Non Families--

$39,766

Average Income

$113,148

Median Household Income

0%

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)