Assumption city, Illinois Demographics & Population 2026

Name: Assumption city, Illinois Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

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Very AffordableHome value to income ratio of 1.3x is exceptionally low

As of 2026, Assumption city, Illinois has a total population of 1,117, the 669th largest city in Illinois, with a median household income of $55,764, which is 32% lower than the state average. The poverty rate is 11.3%.

Key Takeaways

Household income is 32% below the state average, indicating significant economic challenges.
Housing is very affordable with a home-value-to-income ratio of just 1.3x.
Unemployment rate of 11.8% is notably above the national average.

Assumption city Quick Facts

Population 1,117

Median Household Income $55,764

Median Home Value $72,100

Poverty Rate 11.3%

Unemployment Rate 11.8%

Median Age 34.3 years

Homeownership Rate 61.1%

Affordability Ratio 1.3x

Bachelor's Degree or Higher 14.8%

High School Graduation Rate 94.6%

Diversity Index 28/100

Population 1,117 669th of 1,445

Median Income $55,764 bottom 30%

Poverty Rate 11.3% 9% lower national

Median Home Value $72,100 bottom 20%

How Assumption city Compares

Median Household Income

Assumption city

$55,764

$81,702

National

$78,538

Median Home Value

Assumption city

$72,100

$250,500

National

$303,400

Economy & Housing

Household Income Distribution

Under $25K 12.8%

$25K-$50K 29.8%

$50K-$100K 44.9%

$100K+ 12.6%

Employment

11.8% Unemployment Rate State: 5.8% | National: 5.2%

66.4% Labor Force Participation

Housing Overview

Owner 61.1%

Renter 38.9%

Affordability Index Very Affordable

1.3x home value to income ratio

People & Demographics

Age Distribution

Under 18

25.1%

18-34

27.3%

35-54

19.3%

55-74

22.5%

75+

5.9%

Race & Ethnicity

Diversity Index

Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 60 | National average: 60

Education

Educational Attainment (Adults 25+)

Assumption city Rankings in Illinois

#669 Population of 1,445

#987 Median Income of 1,445

#875 Education of 1,445

#1199 Home Value of 1,445

Explore Illinois Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Cities Similar to Assumption city

These cities in the same state have comparable population and economic profiles.

City	Population	Median Income	Home Value	Bachelor's+	Poverty
Lovington village	1,120	$54,394	$90,400	9.2%	13.9%
East Hazel Crest village	1,122	$57,000	$168,800	17.7%	20.1%
Franklin Grove village	1,086	$60,833	$136,800	19.1%	11.3%
Mendon village	1,131	$62,778	$108,500	12.3%	13.9%
Astoria town	1,094	$49,345	$63,700	15.7%	14.9%

Population Overview

Assumption city is a small community located in Illinois. The total population is 1,117. It ranks as the 669th most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Assumption city is 34.3 years. This is 12% lower than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Assumption city is $55,764. This is 32% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 29% lower. The poverty rate stands at 11.3%. This is 3% lower than the state poverty rate of 11.7%. The unemployment rate is 11.8%. This is 103% higher than the state rate of 5.8%. The median home value is $72,100. Housing costs are 71% lower than the state median of $250,500. With a home-value-to-income ratio of just 1.3x, Assumption city is one of the most affordable housing markets in the area. 61.1% of occupied housing units are owner-occupied. This homeownership rate is 9% lower than the state average of 66.8%.

Race & Ethnicity

The largest racial or ethnic group in Assumption city is White (non-Hispanic), making up 84.2% of the population. Hispanic or Latino residents account for 11.6%. The Black or African American population (2.4%) is well below the state average of 13.6%.

Education

14.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 60% lower than the state rate of 37.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.6%.

Data Sources & Methodology

All demographic data for Assumption city, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. For official data, visit data.census.gov.

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Frequently Asked Questions

What is the population of Assumption city, Illinois?

Assumption city, Illinois has a population of 1,117 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Assumption city, IL?

The median household income in Assumption city is $55,764, which is 29% lower the national median of $78,538.

What is the poverty rate in Assumption city, IL?

The poverty rate in Assumption city is 11.3%. This means approximately 126 residents live below the federal poverty line.

What is the racial makeup of Assumption city, Illinois?

Assumption city's population is 84.2% White, 2.4% Black, 11.6% Hispanic/Latino, and 0.0% Asian.

What is the median home value in Assumption city, IL?

The median home value in Assumption city is $72,100. The home-value-to-income ratio is 1.3x.

How educated is Assumption city, Illinois?

14.8% of adults (25+) in Assumption city hold a bachelor's degree or higher, and 3.9% hold a graduate or professional degree.