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 2025 population of 265. Bertram is currently declining at a rate of -0.38% annually and its population has decreased by -1.85% since the most recent census, which recorded a population of 270 in 2020.

The average household income in Bertram is $128,139 with a poverty rate of 2.7%.The median age in Bertram is 56.6 years: 54.5 years for males, and 58 years for females.

265
Total Population
173
Density (mi²)
-1 -0.38%
Growth

Bertram Population

Bertram Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Bertram includes 92.34% White, and smaller percentages for other race and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White20592.34%
Two or more races167.21%
Other race10.45%

Bertram Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Bertram's average per capita income is $56,250. Household income levels show a median of $100,000. The poverty rate stands at 2.7%.

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$124,750-
Families$122,500$139,959
Households$100,000$128,139
Non Families$55,000$66,600

$56,250

Average Income

$100,000

Median Household Income

2.7%

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)