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 429. Portland township is currently growing at a rate of 0.23% annually but its population has decreased by -0.92% since the most recent census, which recorded a population of 433 in 2020.

The median household income in Portland township is $118,504 with a poverty rate of 0%. The median age in Portland township is 45.5 years: 45.5 years for males, and 49 years for females. For every 100 females there are 150.9 males.

429
Total Population
12
Density (mi²)
1 0.23%
Growth

Portland township Population

Portland township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202642910.23%
202542810.23%
202442710.23%
202342600%
2022426-5-1.16%
2021431-2-0.46%
2020433-1-0.23%
2019399-4-0.99%
2018403-4-0.98%
2017407-3-0.73%
2016410-3-0.73%
2015413-1-0.24%
2014414-4-0.96%
2013418-3-0.71%
2012421-1-0.24%
2011422-2-0.47%
201042400%

Median Age

Overall: 45.5 years
Female: 49 years
Male: 45.5 years

Portland township Adults

There are 314 adults, (149 of whom are seniors) in Portland township.

Sex Ratio

Female: 161 (39.9%)
Male: 243 (60.1%)

Demographics

The racial composition of Portland township includes 96.04% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White38896.04%
Two or more races163.96%
Race
Population ↓
Percentage (of total)
White38896.04%
Two or more races163.96%

Portland township Marital Status

Economics and Income Statistics

Portland township 's average per capita income is $48,875. Household income levels show a median of $118,504. 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$118,571-
Households$118,504$116,741
Families$118,103$115,183
Non Families--

$48,875

Average Income

$118,504

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)