Marion Population

1860–2026

42,927

2026 projection

3.3% since 2020 (increase)

010K20K30K40K50K186018801900192019401960198020002020

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 Marion. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202642,927+1950.46%
202542,732+3790.89%
202442,353+3280.78%
202342,025+4201.01%
202241,605-630.15%
202141,668+970.23%
202041,571+1,0902.69%
201940,481+4391.10%
201840,042+5421.37%
201739,500+6081.56%

Showing 10 of 32 years.

Marion Demographics

40.6median age

Median age

Female41.3 yrs
Male40 yrs

Adults

31,260
7,523 seniors · 24%23,737 other adults

Sex

Female 53.4% · 22,358Male 46.6% · 19,538

Population by age

MaleFemale85+ years, male: 25085+ years, female: 46080–84 years, male: 53980–84 years, female: 45975–79 years, male: 51475–79 years, female: 86370–74 years, male: 81370–74 years, female: 1,12065–69 years, male: 1,15565–69 years, female: 1,35060–64 years, male: 1,07060–64 years, female: 1,70255–59 years, male: 1,11655–59 years, female: 96050–54 years, male: 1,13750–54 years, female: 1,26945–49 years, male: 1,45745–49 years, female: 1,48540–44 years, male: 1,72740–44 years, female: 1,97035–39 years, male: 1,33335–39 years, female: 1,50530–34 years, male: 97330–34 years, female: 1,53925–29 years, male: 1,48025–29 years, female: 1,12120–24 years, male: 67720–24 years, female: 84815–19 years, male: 1,01915–19 years, female: 86610–14 years, male: 1,50110–14 years, female: 1,7355–9 years, male: 1,5105–9 years, female: 1,8130–4 years, male: 1,2670–4 years, female: 1,29385+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K1.5K1.5K

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 419 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

Marion Income

$86,743median household income

Median household income

$86,743

Half of households earn more, half earn less

Median earnings

$56,814

Typical yearly pay for a worker 25 or older.

Poverty rate

8.2%

About 1 in 12 residents

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

Marion Marital Status

59% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married59%64%54%
Never married23%26%21%
Divorced12%7%15%
Widowed5%2%9%
Separated1%<1%2%

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