Spencer Population

2010–2026

1,806

2026 projection

0.6% since 2020 (decrease)

05001K1.5K2K201020122014201620182020202220242026

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. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20261,806-30.17%
20251,809+30.17%
20241,806-20.11%
20231,808+20.11%
20221,806-10.06%
20211,807-100.55%
20201,817-633.35%
20191,880-40.21%
20181,884-201.05%
20171,904-20.10%

Showing 10 of 17 years.

Spencer Demographics

38.7median age

Median age

Female40.7 yrs
Male36.8 yrs

Adults

1,238
348 seniors · 28%890 other adults

Sex

Female 44.4% · 748Male 55.6% · 938

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 17 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 Income

$69,750median household income

Median household income

$69,750

Half of households earn more, half earn less

Median earnings

$51,756

Typical yearly pay for a worker 25 or older.

Poverty rate

2.1%

About 1 in 48 residents

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

Spencer Marital Status

44% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married44%42%45%
Never married22%26%17%
Divorced29%27%32%
Widowed5%4%6%
Separated<1%<1%<1%

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