Greencastle Flag

Greencastle

County:
Marshall County
County Seat:
No
Area (mi²):
36.307
State:
Iowa

Greencastle is located in Marshall County, Iowa. Greencastle has a 2025 population of 1,069 . Greencastle is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The average household income in Greencastle is $91,588 with a poverty rate of 7.31%. The median age in Greencastle is 42.5 years: 40.1 years for males, and 46.7 years for females. For every 100 females there are 90.2 males.

1.1K
Total Population
29
Density (mi²)

Greencastle Population

Greencastle Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Greencastle includes 96.16% White, and smaller percentages for Asian and multiracial populations.

Population by Race

White (96.16%)

Two or more races (3.46%)

Asian (0.37%)

Race
Population
Percentage (of total)
White1,02896.16%
Two or more races373.46%
Asian40.37%

Greencastle Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Greencastle's average per capita income is $44,457. Household income levels show a median of $95,395. The poverty rate stands at 7.31%.

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$104,375-
Households$95,395$91,588
Families$93,185$97,924
Non Families$52,159$68,117

$44,457

Average Income

$95,395

Median Household Income

7.31%

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)