United States › Idaho › Spencer CITY
Spencer Idaho · 29 residents (2025 est.) · 1.14 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
Spencer is a city of 19 people in Idaho. The median age is 66.3, about 27 years above the US median. 0% of adults hold a bachelor's degree, below the 36% national rate. 42% of people here were born outside the United States. Owners hold 92% of the housing stock. There are 19 fewer people here than in 2000.
At a glance
Lower income
below the US median
US median: $82,259
Older
median age 66.3
US median: 38.9
Less educated
0% hold a bachelor's degree
US average: 36%
Owner-heavy
92% owner-occupied
US average: 65%
Section 01
Population & growth from 38 in 2000
29 in 2025 (Census Bureau estimate)
from 21 / sq mi in 2009
US average: 281
from 55.3 in 2000
US average: 38.9
Population, 1990 – 2024
4 13 23 32 41 1990 2000 2010 2020 2024 Spencer Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $74,219
+86%inflation adjusted, since 2000
from $21,875 in 2000
US average: $82,259
from $11,711 in 2000
US average: $44,673
Households earning $100K+
from 0.0% in 2009
US average: 53.3%
from 56.8% in 2000
US average: 12.5%
from 0.186 in 2010
US average: 0.476
Workforce by industry, 2024
Arts, entertainment, food 29.4%
Transportation & warehousing 5.9%
Agriculture, forestry, fishing 0%
Professional, scientific, technical 0%
Education & health services 0%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
from 82.4% in 2000
7.7% rent
from 65.1% in 2009
US average: 10.0%
1.46 people
+26%since 2010
from 1.16 people in 2010
US average: 2.54
from 13.3% in 2009
US average: 22.9%
100.0%
Unchangedsince 2021
from 100.0% in 2021
US average: 47.4%
Section 04
Race & ethnicity 2000
White, non-Hispanic 89.5%(34)
2024
White, non-Hispanic 52.6%(10)
Hispanic / Latino 42.1%(8)
from 0 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry from 0.0% in 2000
US average: 35.6%
High school or higher
from 74.1% in 2000
US average: 89.6%
from 0.0% in 2000
US average: 14.0%
Section 06
Commute & transportation from 0.0% in 2009
US average: 68.9%
from 0.0% in 2009
US average: 8.5%
from 0.0% in 2009
US average: 3.2%
from 100.0% in 2009
US average: 15.0%
from 0.0% in 2009
US average: 2.4%
from 0.0% in 2009
US average: 0.4%
from 0.0% in 2009
US average: 8.3%
Section 07
Work & employment from 0.0% in 2012
US average: 5.2%
from 0.0% in 2011
US average: 63.5%
Women 20-64 in the labor force
100.0%
Unchangedsince 2020
from 100.0% in 2020
US average: 74.6%
from 0.0% in 2009
US average: 13.1%
from 60.0% in 2009
US average: 42.5%
Section 08
People & community from 0.0% in 2009
US average: 14.1%
from 0.0% in 2009
US average: 6.2%
from 23.1% in 2012
US average: 13.3%
from 17.6% in 2013
US average: 8.4%
from 100.0% in 2017
US average: 91.0%
Computer in household
100.0%
Unchangedsince 2020
from 100.0% in 2020
US average: 95.5%
from 100.0% in 2020
US average: 87.7%
from 100.0% in 2016
US average: 77.7%
from 0.0% in 2016
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 17.6% in 2013
US average: 8.4%
from 30.8% in 2020
US average: 54.8%
Direct-purchase
from 7.7% in 2020
US average: 13.8%
from 69.2% in 2020
US average: 18.4%
from 0.0% in 2020
US average: 20.9%
VA health care
from 0.0% in 2020
US average: 2.2%
Any private
from 30.8% in 2020
US average: 67.1%
Any public
from 69.2% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Drill deeper
Places similar to Spencer Head to head
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SPENCER VS
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Frequently asked
How many people live in Spencer, Idaho? Spencer, Idaho has about 19 residents according to the 2024 American Community Survey.
What is the median household income in Spencer, Idaho? The typical household in Spencer, Idaho earns about $74,219 a year. Half of households make more than that, and half make less.
How educated are people in Spencer, Idaho? About 0.0% of adults age 25 and over in Spencer, Idaho hold a bachelor's degree or higher.
What is the poverty rate in Spencer, Idaho? About 5.3% of people in Spencer, Idaho live below the federal poverty line.
Has Spencer, Idaho grown since 1990? Yes, Spencer, Idaho has grown since 1990. The population has added about 12 residents, a change of about 171 percent over that period.
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