Marion township Population

2010–2026

12,199

2026 projection

8.2% since 2020 (increase)

02K4K6K8K10K12K14K201020122014201620182020202220242026

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 township. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202612,199+1481.23%
202512,051+1481.24%
202411,903-50.04%
202311,908+2021.73%
202211,706+2051.78%
202111,501+2262.00%
202011,275+1090.98%
201911,166+410.37%
201811,125+1141.04%
201711,011+1691.56%

Showing 10 of 17 years.

Marion township Demographics

43.4median age

Median age

Female43.8 yrs
Male43.1 yrs

Adults

9,235
1,962 seniors · 21%7,273 other adults

Sex

Female 51% · 5,947Male 49% · 5,722

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 117 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 township Income

$123,211median household income

Median household income

$123,211

Half of households earn more, half earn less

Median earnings

$62,171

Typical yearly pay for a worker 25 or older.

Poverty rate

4.5%

About 1 in 22 residents

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

Marion township Marital Status

62% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married62%64%60%
Never married24%28%21%
Divorced10%7%13%
Widowed4%2%6%
Separated<1%<1%0%

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