Marion Population

1830–2026

35,449

2026 projection

1.7% since 2020 (decrease)

010K20K30K40K1850190019502000

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.
202635,449-1380.39%
202535,587+810.23%
202435,506-70.02%
202335,513+2070.59%
202235,306-6231.73%
202135,929-1280.35%
202036,057+1910.53%
201935,866-3270.90%
201836,193+1090.30%
201736,084-3631.00%

Showing 10 of 35 years.

Marion Demographics

39median age

Median age

Female37.8 yrs
Male39.4 yrs

Adults

28,682
5,301 seniors · 18%23,381 other adults

Sex

Female 44.8% · 15,968Male 55.2% · 19,701

Population by age

MaleFemale85+ years, male: 15585+ years, female: 43980–84 years, male: 25580–84 years, female: 47475–79 years, male: 36075–79 years, female: 46870–74 years, male: 63970–74 years, female: 63365–69 years, male: 1,03365–69 years, female: 84560–64 years, male: 1,44060–64 years, female: 1,35755–59 years, male: 1,33255–59 years, female: 1,06550–54 years, male: 1,42250–54 years, female: 85845–49 years, male: 1,43345–49 years, female: 57440–44 years, male: 1,49640–44 years, female: 77435–39 years, male: 1,51535–39 years, female: 1,19430–34 years, male: 1,80230–34 years, female: 1,00225–29 years, male: 1,63525–29 years, female: 1,05720–24 years, male: 1,37020–24 years, female: 1,10915–19 years, male: 93215–19 years, female: 1,03610–14 years, male: 1,03310–14 years, female: 8565–9 years, male: 9385–9 years, female: 1,2950–4 years, male: 9110–4 years, female: 93285+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 357 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

$47,951median household income

Median household income

$47,951

Half of households earn more, half earn less

Median earnings

$40,193

Typical yearly pay for a worker 25 or older.

Poverty rate

22.4%

About 1 in 4 residents

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

Marion Marital Status

36% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married36%33%39%
Never married37%42%30%
Divorced18%19%18%
Widowed7%4%11%
Separated2%2%3%

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