Thayer, Illinois Population 2024

613

Thayer is a city located in Sangamon County Illinois. Thayer has a 2024 population of 613. Thayer is currently declining at a rate of -0.65% annually and its population has decreased by -2.85% since the most recent census, which recorded a population of 631 in 2020.

The average household income in Thayer is $71,791 with a poverty rate of 9.71%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Thayer is 44.3 years, 43.8 years for males, and 46.1 years for females.

Thayer Demographics

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

  • White: 96.2%
  • Two or more races: 1.63%
  • Asian: 1.27%
  • Black or African American: 0.9%
  • Native American:
  • Native Hawaiian or Pacific Islander:
  • Other race:
Land Area (mi²)
0.6 sq mi
Density (mi²)
1,005.0/sq mi
Growth Since 2020
-2.85% (-18)
The current population of Thayer, Illinois is 613 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 631.

Thayer, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White53296.2%
Two or more races91.63%
Asian71.27%
Black or African American50.9%
Native American
Native Hawaiian or Pacific Islander
Other race
showing: 7 rows

White

Two or more races

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Other race

Thayer Population by Race

Thayer Population Pyramid 2024

Thayer Median Age

44.3

Total

43.8

Male

46.1

Female

Thayer Adults

There are 457 adults, (112 of whom are seniors) in Thayer.

Thayer Age Dependency

60.3

Age Dependency Ratio

32.5

Old Age Dependency Ratio

27.8

Child Dependency Ratio

Thayer Sex Ratio

Female25646.29%
Male29753.71%

Thayer Population by Age

Thayer Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All2702.05937
Non Family1241.2794.45.6
Married1032.771000
Female292.556931
Male142.6478.621.4
showing: 5 rows

2.65

Average Family Size

2.05

Average Household Size

93.0%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Thayer 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

Thayer Educational Attainment by Sex (over 25)

Thayer Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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

The highest rate of bachelors degrees is among asian people with a rate of 100%.

Thayer Educational Attainment by Race

All

Male

Female

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$39,231

Average Earnings

$41,875

Average Male

$36,382

Average Female

Thayer Earnings by Educational Attainment

Thayer Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Thayer Language

97.71% of Thayer residents speak only English, while 2.29% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 2.29% of the population.

Thayer Language

Thayer Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White525519.71%
Multiple9222.22%
showing: 2 rows

9.71%

Overall Poverty Rate

1.35%

Male Poverty Rate

19.68%

Female Poverty Rate

Poverty in Thayer

The race most likely to be in poverty in Thayer is Multiple, with 22.22% below the poverty level.

The race least likely to be in poverty in Thayer is White, with 9.71% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.67%. Among those working part-time, it was 14.61%, and for those that did not work, the poverty rate was 13.14%.

Thayer Poverty

rate

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Rate
Poverty
Less Than 9th Grade50%
Some College8.51%
High School4.76%
Bachelors or Greater1.82%
showing: 4 rows

Thayer Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed100%
Male Unemployed25%
Female Employed13.16%
Male Employed1.06%
showing: 4 rows

Thayer Poverty Rate by Employment Status and Sex

Thayer Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Thayer Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

46.7%

Overall Marriage Rate

43.8%

Male Marriage Rate

50.2%

Female Marriage Rate

Thayer Married by Age and Sex

male

female

Thayer 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 35-44.

Thayer Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Thayer Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

68

Number of Veterans

63

Male Veterans

5

Female Veterans

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Thayer Veterans by War

count

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Thayer Veterans by Age

count

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Thayer Veterans by Race

Thayer Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

Veteran Poverty Rate

20.59%

Veteran Disability Rate

Thayer Veterans by Education

LaborForceParticipation

70.1%

Labor Force Participation

64.9%

Employment Rate

5%

Unemployment Rate

Thayer Employment by Age

LaborForceParticipation

Thayer Employment by Race

LaborForceParticipation

Thayer 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

78.3%

Born in Thayer

98.19%

Native Born

1.81%

Foreign Born

0.9%

Non Citizen

0.9%

Naturalized

Place of Birth

98.19% of Thayer residents were born in the United States, with 78.3% having been born in Illinois. 0.9% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Thayer Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029593-4-0.67%
2028597-4-0.67%
2027601-4-0.66%
2026605-4-0.66%
2025609-4-0.65%
2024613-4-0.65%
2023617-4-0.64%
2022621-4-0.64%
2021625-6-0.95%
2020631-27-4.1%
2019658-6-0.9%
2018664-9-1.34%
2017673-5-0.74%
2016678-7-1.02%
2015685-4-0.58%
2014689-4-0.58%
2013693-2-0.29%
2012695-3-0.43%
201169840.58%
2010694
showing: 20 rows

Thayer Population by Year