Spencer township Population

2010–2026

4,330

2026 projection

3.9% since 2020 (increase)

01K2K3K4K5K201020122014201620182020202220242026

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 Spencer township. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20264,330+420.98%
20254,288+420.99%
20244,246+441.05%
20234,202+170.41%
20224,185+250.60%
20214,160-70.17%
20204,167-1443.34%
20194,311+370.87%
20184,274+380.90%
20174,236+410.98%

Showing 10 of 17 years.

Spencer township Demographics

47.1median age

Median age

Female42.5 yrs
Male49.5 yrs

Adults

3,428
994 seniors · 29%2,434 other adults

Sex

Female 48.9% · 2,054Male 51.1% · 2,146

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 42 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

Spencer township Income

$82,571median household income

Median household income

$82,571

Half of households earn more, half earn less

Median earnings

$52,123

Typical yearly pay for a worker 25 or older.

Poverty rate

6.9%

About 1 in 15 residents

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

Spencer township 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%56%62%
Never married25%27%23%
Divorced13%12%13%
Widowed4%6%2%
Separated0%0%0%

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