Marshalltown Population

1860–2026

27,564

2026 projection

0.1% since 2020 (decrease)

05K10K15K20K25K30K186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Marshalltown. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202627,564+280.10%
202527,536-1560.56%
202427,692+700.25%
202327,622+1990.73%
202227,423-360.13%
202127,459-1210.44%
202027,580+8313.11%
201926,749-2330.86%
201826,982-1220.45%
201727,104-660.24%

Showing 10 of 32 years.

Marshalltown Demographics

35.7median age

Median age

Female36.4 yrs
Male35.2 yrs

Adults

20,168
4,563 seniors · 23%15,605 other adults

Sex

Female 49.3% · 13,621Male 50.7% · 14,005

Population by age

MaleFemale85+ years, male: 33285+ years, female: 36680–84 years, male: 24080–84 years, female: 42075–79 years, male: 26075–79 years, female: 26570–74 years, male: 59670–74 years, female: 68165–69 years, male: 73565–69 years, female: 66860–64 years, male: 82460–64 years, female: 86455–59 years, male: 74555–59 years, female: 75750–54 years, male: 76750–54 years, female: 66745–49 years, male: 71145–49 years, female: 74740–44 years, male: 86540–44 years, female: 77735–39 years, male: 97135–39 years, female: 82530–34 years, male: 96030–34 years, female: 82725–29 years, male: 85625–29 years, female: 77520–24 years, male: 93320–24 years, female: 97315–19 years, male: 1,11615–19 years, female: 1,09910–14 years, male: 1,02210–14 years, female: 1,4715–9 years, male: 1,2755–9 years, female: 6880–4 years, male: 7970–4 years, female: 75185+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 276 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Marshalltown Income

$69,068median household income

Median household income

$69,068

Half of households earn more, half earn less

Median earnings

$42,292

Typical yearly pay for a worker 25 or older.

Poverty rate

14.3%

About 1 in 7 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Marshalltown Marital Status

48% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married48%49%48%
Never married32%37%28%
Divorced12%10%13%
Widowed6%3%10%
Separated1%<1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year