Plainville Flag

Plainville

County:
Adams County
County Seat:
No
Area (mi²):
0.235
State:
Illinois

Plainville is a village located in Adams County, Illinois. Plainville has a 2026 population of 255. Plainville is currently declining at a rate of -0.78% annually and its population has decreased by -5.56% since the most recent census, which recorded a population of 270 in 2020.

The median household income in Plainville is $76,250 with a poverty rate of 8.74%. The median age in Plainville is 49.9 years: 53.5 years for males, and 47.8 years for females. For every 100 females there are 125.9 males.

255
Total Population
1,086
Density (mi²)
-2 -0.78%
Growth

Plainville Population

Plainville Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026255-2-0.78%
2025257-3-1.15%
2024260-1-0.38%
2023261-3-1.14%
2022264-3-1.12%
2021267-3-1.11%
202027000%
2019255-1-0.39%
2018256-2-0.78%
2017258-2-0.77%
201626010.39%
2015259-1-0.38%
201426000%
2013260-1-0.38%
201226100%
2011261-3-1.14%
201026200%

Median Age

Overall: 49.9 years
Female: 47.8 years
Male: 53.5 years

Plainville Adults

There are 132 adults, (49 of whom are seniors) in Plainville.

Sex Ratio

Female: 81 (44.3%)
Male: 102 (55.7%)

Demographics

The racial composition of Plainville includes 92.35% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White16992.35%
Two or more races147.65%
Race
Population ↓
Percentage (of total)
White16992.35%
Two or more races147.65%

Plainville Marital Status

Economics and Income Statistics

Plainville 's average per capita income is $54,750. Household income levels show a median of $76,250. The poverty rate stands at 8.74%.

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$83,750-
Families$82,250$98,053
Households$76,250$99,814
Non Families$63,036$53,911

$54,750

Average Income

$76,250

Median Household Income

8.74%

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)