Bertram Flag

Bertram

County:
Linn County
County Seat:
No
Area (mi²):
1.534
State:
Iowa

Bertram is a city located in Linn County, Iowa. Bertram has a 2026 population of 266. Bertram is currently declining at a rate of 0% annually and its population has decreased by -0.75% since the most recent census, which recorded a population of 268 in 2020.

The median household income in Bertram is $86,786 with a poverty rate of 2.51%. The median age in Bertram is 54.3 years: 51.5 years for males, and 56.8 years for females. For every 100 females there are 97.5 males.

266
Total Population
173
Density (mi²)

Bertram Population

Bertram Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202626600%
2025266-1-0.37%
202426710.38%
202326620.76%
2022264-2-0.75%
2021266-2-0.75%
2020268-1-0.37%
2019279-3-1.06%
201828200%
201728200%
2016282-1-0.35%
201528300%
201428331.07%
2013280-1-0.36%
2012281-1-0.35%
2011282-12-4.08%
201028120.72%

Median Age

Overall: 54.3 years
Female: 56.8 years
Male: 51.5 years

Bertram Adults

There are 209 adults, (89 of whom are seniors) in Bertram.

Sex Ratio

Female: 121 (50.6%)
Male: 118 (49.4%)

Demographics

The racial composition of Bertram includes 92.47% White, and smaller percentages for other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White22192.47%
Two or more races177.11%
Other race10.42%
Race
Population ↓
Percentage (of total)
Two or more races83.35%
White20.84%
Other race10.42%
Race
Population ↓
Percentage (of total)
White21991.63%
Two or more races93.77%

Bertram Marital Status

Economics and Income Statistics

Bertram 's average per capita income is $53,750. Household income levels show a median of $86,786. The poverty rate stands at 2.51%.

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$114,167-
Families$98,750$132,838
Households$86,786$113,835
Non Families$36,250$46,221

$53,750

Average Income

$86,786

Median Household Income

2.51%

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)