Plum Hill township Flag

Plum Hill township

County Seat:
No
Area (mi²):
37.816
State:
Illinois

Plum Hill township is located in Washington County, Illinois. Plum Hill township has a 2026 population of 487. Plum Hill township is currently declining at a rate of -0.61% annually and its population has decreased by -1.22% since the most recent census, which recorded a population of 493 in 2020.

The median household income in Plum Hill township is $101,167 with a poverty rate of 2.84%.The median age in Plum Hill township is 53 years: 53.5 years for males, and 49.9 years for females. For every 100 females there are 95.0 males.

487
Total Population
13
Density (mi²)
-3 -0.61%
Growth

Plum Hill township Population

Plum Hill township Population

Year↓
Population
Growth
Annual Change
2026487-3-0.61%
2025490-3-0.61%
202449340.82%
2023489-4-0.81%
202249320.41%
2021491-2-0.41%
2020493-1-0.2%
2019514-2-0.39%
201851630.58%
2017513-6-1.16%
2016519-5-0.95%
2015524-3-0.57%
2014527-2-0.38%
2013529-6-1.12%
201253540.75%
2011531-6-1.12%
2010536-1-0.19%

Median Age

Overall:53 years
Female:49.9 years
Male:53.5 years

Plum Hill township Adults

There are 323 adults, (103 of whom are seniors) in Plum Hill township.

Sex Ratio

Female: 199 (51.3%)
Male: 189 (48.7%)

Demographics

The racial composition of Plum Hill township includes 95.62% White, 3.35% Asian, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race
Population↓
Percentage (of total)
White37195.62%
Asian133.35%
Two or more races41.03%
Race
Population↓
Percentage (of total)
White37195.62%
Asian133.35%
Two or more races41.03%

Plum Hill township Marital Status

Economics and Income Statistics

Plum Hill township's average per capita income is $48,194. Household income levels show a median of $101,167. The poverty rate stands at 2.84%.

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$148,214-
Families$147,679$152,366
Households$101,167$127,051
Non Families$46,607$62,358

$48,194

Average Income

$101,167

Median Household Income

2.84%

Poverty Rate

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)