Spencer, Iowa Population 2024

11,485

Spencer is a city located in Clay County Iowa. Spencer has a 2024 population of 11,485. It is also the county seat of Clay County.Spencer is currently growing at a rate of 0.31% annually and its population has increased by 1.6% since the most recent census, which recorded a population of 11,304 in 2020.

The average household income in Spencer is $75,068 with a poverty rate of 13.6%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Spencer is 41.4 years, 41.2 years for males, and 41.6 years for females.

Spencer Demographics

According to the most recent ACS, the racial composition of Spencer was:

  • White: 93.65%
  • Two or more races: 4.19%
  • Other race: 0.96%
  • Black or African American: 0.59%
  • Asian: 0.43%
  • Native American: 0.18%
  • Native Hawaiian or Pacific Islander:
State
Iowa
Land Area (mi²)
10.9 sq mi
Density (mi²)
1,051.0/sq mi
Growth Since 2020
1.6% (181)
The current population of Spencer, Iowa is 11,485 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 11,304.

Spencer, Iowa Population 2024

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Spencer Metro Area Population by Year

Population by Race

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Race
Population
Percentage (of total)
White10,63093.65%
Two or more races4764.19%
Other race1090.96%
Black or African American670.59%
Asian490.43%
Native American200.18%
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Spencer Population by Race

Spencer Population Pyramid 2024

Spencer Median Age

41.4

Total

41.2

Male

41.6

Female

Spencer Adults

There are 8,756 adults, (2,457 of whom are seniors) in Spencer.

Spencer Age Dependency

80.2

Age Dependency Ratio

39

Old Age Dependency Ratio

41.2

Child Dependency Ratio

Spencer Sex Ratio

Female5,99852.84%
Male5,35347.16%

Spencer Population by Age

Spencer Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All5,1622.1468.831.2
Non Family2,3831.2155.144.9
Married2,0432.8496.73.3
Female5723.3424.375.7
Male1642.6876.223.8
showing: 5 rows

2.9

Average Family Size

2.14

Average Household Size

68.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Spencer Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Spencer Educational Attainment by Sex (over 25)

Spencer Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 83.67%.

Spencer Educational Attainment by Race

All

Male

Female

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$44,215

Average Earnings

$51,074

Average Male

$35,262

Average Female

Spencer Earnings by Educational Attainment

Spencer Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Spencer Language

98.5% of Spencer residents speak only English, while 1.5% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.98% of the population.

Spencer Language

Spencer Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White10,0831,0039.95%
Hispanic52735066.41%
Multiple47328460.04%
showing: 3 rows

13.6%

Overall Poverty Rate

10.9%

Male Poverty Rate

16.06%

Female Poverty Rate

Poverty in Spencer

The race most likely to be in poverty in Spencer is Hispanic, with 66.41% below the poverty level.

The race least likely to be in poverty in Spencer is White, with 9.95% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.01%. Among those working part-time, it was 24.4%, and for those that did not work, the poverty rate was 10.27%.

Spencer Poverty

rate

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Rate
Poverty
Less Than 9th Grade10.76%
Some College8.99%
High School8.18%
Bachelors or Greater4.47%
showing: 4 rows

Spencer Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed87.41%
Male Unemployed39.33%
Female Employed13.82%
Male Employed4.3%
showing: 4 rows

Spencer Poverty Rate by Employment Status and Sex

Spencer Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Spencer Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

47.4%

Overall Marriage Rate

50.2%

Male Marriage Rate

44.8%

Female Marriage Rate

Spencer Married by Age and Sex

male

female

Spencer Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Spencer Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Spencer Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

697

Number of Veterans

667

Male Veterans

30

Female Veterans

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Spencer Veterans by War

count

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Spencer Veterans by Age

count

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Spencer Veterans by Race

Spencer Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.27%

Veteran Poverty Rate

26.2%

Veteran Disability Rate

Spencer Veterans by Education

LaborForceParticipation

67.4%

Labor Force Participation

63.8%

Employment Rate

5.2%

Unemployment Rate

Spencer Employment by Age

LaborForceParticipation

Spencer Employment by Race

LaborForceParticipation

Spencer Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

72.14%

Born in Spencer

98.92%

Native Born

1.08%

Foreign Born

0.65%

Non Citizen

0.43%

Naturalized

Place of Birth

98.92% of Spencer residents were born in the United States, with 72.14% having been born in Iowa. 0.65% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Spencer Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202911,665360.31%
202811,629360.31%
202711,593360.31%
202611,557360.31%
202511,521360.31%
202411,485360.31%
202311,449360.32%
202211,413360.32%
202111,377730.65%
202011,3042882.61%
201911,016-42-0.38%
201811,058170.15%
201711,041-57-0.51%
201611,098-99-0.88%
201511,197170.15%
201411,180490.44%
201311,131-34-0.3%
201211,165-39-0.35%
201111,204-21-0.19%
201011,225-92-0.81%
200011,3172512.27%
199011,066-660-5.63%
198011,7261,44814.09%
197010,2781,41415.95%
19608,8641,41819.04%
19507,44684712.84%
19406,5991,58031.48%
19305,0194209.13%
19204,5991,59453.04%
19103,005-90-2.91%
19003,095
showing: 31 rows

Spencer Population by Year