Winthrop Flag

Winthrop

County:
Buchanan County
County Seat:
No
Area (mi²):
0.791
State:
Iowa

Winthrop is a city located in Buchanan County, Iowa. Winthrop has a 2026 population of 808. Winthrop is currently declining at a rate of -0.37% annually and its population has decreased by -2.06% since the most recent census, which recorded a population of 825 in 2020.

The median household income in Winthrop is $69,792 with a poverty rate of 3.75%. The median age in Winthrop is 35.9 years: 33.6 years for males, and 39 years for females. For every 100 females there are 120.3 males.

808
Total Population
1,022
Density (mi²)
-3 -0.37%
Growth

Winthrop Population

Winthrop Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026808-3-0.37%
2025811-3-0.37%
2024814-6-0.73%
2023820-2-0.24%
2022822-2-0.24%
2021824-1-0.12%
202082520.24%
2019845-5-0.59%
201885010.12%
201784950.59%
2016844-5-0.59%
2015849-3-0.35%
201485260.71%
2013846-2-0.24%
201284830.36%
2011845-5-0.59%
201084910.12%

Median Age

Overall: 35.9 years
Female: 39 years
Male: 33.6 years

Winthrop Adults

There are 724 adults, (174 of whom are seniors) in Winthrop.

Sex Ratio

Female: 472 (45.4%)
Male: 568 (54.6%)

Demographics

The racial composition of Winthrop includes 98.65% White, and smaller percentages for Two or more races, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,02698.65%
Two or more races131.25%
Native Hawaiian or Pacific Islander10.1%
Race
Population ↓
Percentage (of total)
White151.44%
Race
Population ↓
Percentage (of total)
White1,01197.21%
Two or more races131.25%
Native Hawaiian or Pacific Islander10.1%

Winthrop Marital Status

Economics and Income Statistics

Winthrop 's average per capita income is $49,479. Household income levels show a median of $69,792. The poverty rate stands at 3.75%.

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$88,750-
Families$74,063$90,183
Households$69,792$83,605
Non Families$45,000$49,532

$49,479

Average Income

$69,792

Median Household Income

3.75%

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)