CensusEasy
CITY

Assumption

Illinois · 1,112 residents (2025 est.) · 0.99 sq mi
Time machine
COMPARE TO
Part of the Taylorville micropolitan area
Compare
The short version

Assumption has notably lower household income than the US average, with a median household income of $57,500. Population has declined 4% since 2000. 17% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has more than doubled since 2000, reaching $89,700. Households here earn about 31% less than the Illinois median.

At a glance
Lower income
below the US median
US median: $82,259
Younger
median age 37.2
US median: 38.9
Less educated
17% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
1,205
−4%since 2000
from 1,261 in 2000
1990 – 2025
Population density
1,217 / sq mi
−4%since 2000
from 1,274 / sq mi in 2000
US average: 281
Median age
37.2
−3%since 2000
from 38.5 in 2000
US average: 38.9

PEP 2025 EST:1,112 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
9891K1K1K1K1990201020202024Assumption
20241K
1990201020202024
Section 02

Income & economy

Median household income
$57,500
−8%inflation adjusted, since 2000
from $34,474 in 2000
US average: $82,259
1990 – 2024
Per capita income
$35,484
+116%since 2000
from $16,421 in 2000
US average: $44,673
Households earning $100K+
32.0%
+18.8 ptssince 2009
from 13.2% in 2009
US average: 53.3%
Poverty rate
11.7%
+2.1 ptssince 2000
from 9.5% in 2000
US average: 12.5%
Income inequality (Gini)
0.381
+6%since 2010
from 0.359 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade17.9%
US avg: 9.9%
Information7%
US avg: 10.8%
Finance & insurance4.9%
US avg: 5.9%
Professional, scientific, technical4.9%
US avg: 5.1%
Wholesale trade3.2%
US avg: 6.9%
Other services2.8%
US avg: 6.7%
Public administration2.8%
US avg: 4.8%
Agriculture, forestry, fishing2%
US avg: 1.6%
Construction2%
US avg: 1.2%
Transportation & warehousing1.2%
US avg: 2.2%
Arts, entertainment, food0.9%
US avg: 1.9%
Manufacturing0%
US avg: 0.4%
Education & health services0%
US avg: 0.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$89,700
+6%inflation adjusted, since 2000
from $46,400 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$693
−1%inflation adjusted, since 2000
from $384 in 2000
US average: $1,442
Owner-occupied
64.2%
−13.1 ptssince 2000
from 77.3% in 2000
35.8% rent
Vacancy rate
10.7%
+1.5 ptssince 2009
from 9.2% in 2009
US average: 10.0%
Owner cost-burdened
11.4%
−4.5 ptssince 2009
from 15.9% in 2009
US average: 22.9%
Renter cost-burdened
18.6%
−14.7 ptssince 2009
from 33.3% in 2009
US average: 47.4%
Afford Score
1.6
+16%since 2000
from 1.3 in 2000
1990 – 2024
Gentrification Score
44
RELATED:See current rent listings in Assumption on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic99.7%(1,257)
Black0%(0)
Hispanic / Latino0.2%(2)
Asian0.1%(1)
Other0%
Diversity Score0.6%(7)
2024
White, non-Hispanic88.3%(1,064)
Black3.3%(40)
Hispanic / Latino2.3%(28)
Asian0%(0)
Other6.1%(73)
Diversity Score26.9%(324)
Diversity Score
27
+4424%since 2000
from 1 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
16.6%
+5.3 ptssince 2000
from 11.3% in 2000
US average: 35.6%
High school or higher
95.3%
+10.7 ptssince 2000
from 84.6% in 2000
US average: 89.6%
Graduate degree
5.5%
+2.0 ptssince 2000
from 3.5% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
24.9 min
+31%since 2000
from 19.0 min in 2000
US average: 26.5
Drive alone to work
84.8%
+4.5 ptssince 2009
from 80.3% in 2009
US average: 68.9%
Carpooled to work
3.5%
−7.7 ptssince 2009
from 11.1% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
10.3%
+8.5 ptssince 2009
from 1.8% in 2009
US average: 15.0%
Walked to work
0.0%
−5.3 ptssince 2009
from 5.3% in 2009
US average: 2.4%
Biked to work
0.0%
−1.0 ptssince 2009
from 1.0% in 2009
US average: 0.4%
No vehicle available
4.8%
−4.9 ptssince 2009
from 9.8% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
9.2%
+3.8 ptssince 2011
from 5.3% in 2011
US average: 5.2%
Labor force participation
69.2%
+4.7 ptssince 2011
from 64.5% in 2011
US average: 63.5%
Self-employed
31.0%
+19.5 ptssince 2009
from 11.5% in 2009
US average: 13.1%
Management & professional
33.0%
−25.3 ptssince 2009
from 58.3% in 2009
US average: 42.5%
Section 08

People & community

Male
54.5%
+7.4 ptssince 2009
from 47.1% in 2009
Female
45.5%
−7.4 ptssince 2009
from 52.9% in 2009
Foreign born
0.2%
−0.4 ptssince 2009
from 0.7% in 2009
US average: 14.1%
Veterans
6.8%
−39.7 ptssince 2009
from 46.5% in 2009
US average: 6.2%
With a disability
8.9%
−4.9 ptssince 2012
from 13.8% in 2012
US average: 13.3%
Uninsured
3.6%
−90.0 ptssince 2013
from 93.6% in 2013
US average: 8.4%
Broadband at home
87.5%
+16.8 ptssince 2017
from 70.7% in 2017
US average: 91.0%
English only at home
98.8%
+0.2 ptssince 2016
from 98.5% in 2016
US average: 77.7%
Spanish at home
0.1%
−0.8 ptssince 2016
from 0.9% in 2016
US average: 13.6%
Drill deeper

Places similar to Assumption

Harlem Heights
Pop 1,122
Mayo
Pop 1,119
Five Points
Pop 1,097
Dagsboro
Pop 983
Places similar to Assumption
Head to head

Compare Assumption to nearby cities

ASSUMPTION VS
Taylorville
Income$57,552same
Home value$104,100+16%
Population10,522+846%
SEE FULL COMPARISON →
ASSUMPTION VS
Decatur
Income$51,592−10%
Home value$99,600+11%
Population67,884+6005%
SEE FULL COMPARISON →
ASSUMPTION VS
Chatham
Income$106,773+86%
Home value$243,200+171%
Population14,579+1211%
SEE FULL COMPARISON →
ASSUMPTION VS
Mattoon
Income$51,597−10%
Home value$97,700+9%
Population16,667+1399%
SEE FULL COMPARISON →
Frequently asked

How many people live in Assumption, Illinois?

Assumption, Illinois has about 1,205 residents according to the 2024 American Community Survey.

What is the median household income in Assumption, Illinois?

The typical household in Assumption, Illinois earns about $57,500 a year. Half of households make more than that, and half make less.

Is Assumption, Illinois expensive?

In Assumption, Illinois, the median home is worth about $89,700, and the typical rent is about $693 a month.

How educated are people in Assumption, Illinois?

About 16.6% of adults age 25 and over in Assumption, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Assumption, Illinois?

About 11.7% of people in Assumption, Illinois live below the federal poverty line.

Has Assumption, Illinois grown since 1990?

Yes, Assumption, Illinois has shrunk since 1990. The population has lost about 39 residents, a change of about -3 percent over that period.

Keep going

Explore from here

Up the hierarchy
Illinois
Rankings
Highest income citiesFastest growing citiesMost educated cities
Compare
Compare Assumption with another place

DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →