Marshalltown Flag

Marshalltown

County:
Marshall County
County Seat:
Yes
Area (mi²):
19.198
State:
Iowa

Marshalltown is a city located in Marshall County, Iowa. Marshalltown has a 2026 population of 27,564. It is also the county seat of Marshall County. Marshalltown is currently growing at a rate of 0.1% annually but its population has decreased by -0.06% since the most recent census, which recorded a population of 27,580 in 2020.

The median household income in Marshalltown is $69,068 with a poverty rate of 14.26%. The median age in Marshalltown is 35.7 years: 35.2 years for males, and 36.4 years for females. For every 100 females there are 102.8 males.

27.6K
Total Population
1,436
Density (mi²)
28 0.1%
Growth

Marshalltown Population

Marshalltown Population

Year ↓
Population
Growth
Annual Change
202627,564280.1%
202527,536-156-0.56%
202427,692700.25%
202327,6221990.73%
202227,423-36-0.13%
202127,459-121-0.44%
202027,580-14-0.05%
201926,749-233-0.86%
201826,982-122-0.45%
201727,104-66-0.24%
201627,170-168-0.61%
201527,338-266-0.96%
201427,604-219-0.79%
201327,823-10%
201227,824440.16%
201127,7801750.63%
201027,605530.19%
200026,0098313.3%
199025,178-1,760-6.53%
198026,9387192.74%
197026,2193,69816.42%
196022,5212,70013.62%
195019,8215813.02%
194019,2401,86710.75%
193017,3731,64210.44%
192015,7312,35717.62%
191013,3741,83015.85%
190011,5442,63029.5%
18908,9142,67442.85%
18806,2403,02293.91%
18703,21800%

Median Age

Overall: 35.7 years
Female: 36.4 years
Male: 35.2 years

Marshalltown Adults

There are 20,168 adults, (4,563 of whom are seniors) in Marshalltown.

Sex Ratio

Female: 13,621 (49.3%)
Male: 14,005 (50.7%)

Demographics

The racial composition of Marshalltown includes 60.41% White, 11.34% other race, 4.94% Asian, and smaller percentages for Black or African American, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White16,68860.41%
Two or more races5,19218.79%
Other race3,13311.34%
Asian1,3644.94%
Black or African American7822.83%
Native American4671.69%
Race
Population ↓
Percentage (of total)
Two or more races4,09314.82%
Other race3,00010.86%
White1,7536.35%
Native American3801.38%
Black or African American1960.71%
Asian210.08%
Race
Population ↓
Percentage (of total)
White14,93554.06%
Asian1,3434.86%
Two or more races1,0993.98%
Black or African American5862.12%
Other race1330.48%
Native American870.31%

Marshalltown Marital Status

Economics and Income Statistics

Marshalltown's average per capita income is $42,292. Household income levels show a median of $69,068. The poverty rate stands at 14.26%.

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$91,575-
Families$83,573$93,596
Households$69,068$79,854
Non Families$42,342$54,284

$42,292

Average Income

$69,068

Median Household Income

14.26%

Poverty Rate

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)