Junction City, Illinois Demographics & Population 2026

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

During the 2020–2024 ACS period, Junction City, Illinois had a total population of 638, the 849th largest village in Illinois, with a median household income of $56,364, which is 32% lower than the state average. The poverty rate is 14.7%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Key Takeaways

Household income is 32% below the state average, indicating significant economic challenges.
Only 2.0% of adults have a bachelor's degree, well below the national average of 35.7%.
Housing is very affordable with a home-value-to-income ratio of just 1.5x.

Junction City Quick Facts

Population 638

Median Household Income $56,364

Median Home Value $83,500

Poverty Rate 14.7%

Unemployment Rate 7.1%

Median Age 36.2 years

Homeownership Rate 72.5%

Affordability Ratio 1.5x

Bachelor's Degree or Higher 2.0%

High School Graduation Rate 74.6%

Diversity Index 21/100

Population 638 849th of 1,445

Median Income $56,364 bottom 30%

Poverty Rate 14.7% 18% higher than national

Median Home Value $83,500 bottom 30%

How Junction City Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	753	638	-15.3%
Median household income	$53,333	$56,364	+5.7%
Median home value	$71,300	$83,500	+17.1%

How Junction City Compares

Median Household Income

Junction City

$56,364

$83,390

National

$80,734

Median Home Value

Junction City

$83,500

$263,300

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 19.8%

$25K-$50K 21.6%

$50K-$100K 45.5%

$100K+ 13.1%

Detailed income brackets

Under $10K

5.0%

$10K-$15K

0.9%

$15K-$20K

4.0%

$20K-$25K

9.9%

$25K-$30K

3.6%

$30K-$35K

6.3%

$35K-$40K

1.8%

$40K-$45K

4.5%

$45K-$50K

5.4%

$50K-$60K

16.7%

$60K-$75K

15.8%

$75K-$100K

13.1%

$100K-$125K

3.6%

$125K-$150K

0.0%

$150K-$200K

9.5%

$200K+

0.0%

Employment

7.1% Unemployment Rate State: 5.8%|National: 5.2%

56.7% Labor Force Participation

Housing Overview

Owner 72.5%

Renter 27.5%

Affordability Index Very Affordable

1.5x home value to income ratio

Median gross rent $878/mo 18.7% of median household income annually

People & Demographics

Age Distribution

Under 18

31.2%

18-34

15.4%

35-54

25.1%

55-74

21.0%

75+

7.4%

Race & Ethnicity

Diversity Index

Very Low Diversity

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

State average: 61 | National average: 61

Education

Educational Attainment (Adults 25+)

Junction City Rankings in Illinois

#849 Population of 1,445

#1016 Median Income of 1,374

#1367 Education of 1,444

#1082 Home Value of 1,372

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

Other Cities in Marion County

City	Population	Median Income	Poverty	Home Value
Centralia	11,856	$47,807	24.3%	$89,600
Salem	7,236	$59,728	16.3%	$106,100
Central City	1,081	$44,896	29.1%	$47,600
Sandoval	1,004	$52,841	26.7%	$59,100
Odin	972	$46,131	18.3%	$102,600
Wamac	804	$36,500	27.7%	$20,100
Kinmundy	803	$42,303	15.8%	$95,400
Farina	570	$46,146	10.7%	$83,800
Iuka	534	$61,146	9.6%	$72,600
Patoka	498	$65,833	9.3%	$89,200

Cities Similar to Junction City

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

City	Population	Median Income	Home Value	Bachelor's+	Poverty
Dakota	645	$55,815	$115,600	20.5%	14.5%
Noble	649	$57,143	$58,500	7.4%	16.6%
Shipman	618	$56,771	$89,400	16.0%	13.7%
Cisne	627	$59,926	$76,600	10.8%	6.5%
New Boston	648	$60,662	$95,400	10.0%	16.4%

A note before these figures: with a population of 638, Junction City's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Junction City is a small community located in Illinois, within Marion County. The total population is 638. It ranks as the 849th most populous out of 1,445 Census-designated places in Illinois.

Age Demographics

The median age in Junction City is 36.2 years. This is 7% lower than the state median of 39.0 years. With 31.2% of the population under 18, Junction City has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Junction City is $56,364. This is 32% lower than the state median of $83,390. It is also 30% lower than the national median of $80,734. The poverty rate stands at 14.7%. This is 25% higher than the state poverty rate of 11.8%. The unemployment rate is 7.1%. This is 21% higher than the state rate of 5.8%. The median home value is $83,500. Housing costs are 68% lower than the state median of $263,300. With a home-value-to-income ratio of just 1.5x, Junction City is one of the most affordable housing markets in the area. 72.5% of occupied housing units are owner-occupied. This homeownership rate is 8% higher than the state average of 67.1%.

Race & Ethnicity

Junction City has a predominantly White (non-Hispanic) population, comprising 88.7% of all residents. Hispanic or Latino residents account for 4.2%. The White (non-Hispanic) population is significantly higher than the state average (88.7% vs 58.1%). The Hispanic or Latino population (4.2%) is well below the state average of 18.8%. The Asian population (0.6%) is well below the state average of 5.9%.

Education

2.0% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 95% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 74.6%.

Data Sources & Methodology

All demographic data for Junction City, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. 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. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.

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Frequently Asked Questions

What is the population of Junction City, Illinois?

Junction City, Illinois has a population of 638 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Junction City, IL?

The median household income in Junction City is $56,364, which is 30% lower than the national median of $80,734.

What is the poverty rate in Junction City, IL?

The poverty rate in Junction City is 14.7%. This means approximately 94 residents live below the federal poverty line.

What is the racial makeup of Junction City, Illinois?

Junction City's population is 88.7% White, 0.0% Black, 4.2% Hispanic/Latino, and 0.6% Asian.

What is the median home value in Junction City, IL?

The median home value in Junction City is $83,500. The home-value-to-income ratio is 1.5x.

How educated is Junction City, Illinois?

2.0% of adults (25+) in Junction City hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.