Illiopolis vs Mechanicsburg

A side-by-side comparison of Illiopolis and Mechanicsburg: population, income, housing, and more.

Illiopolis and Mechanicsburg are places in Illinois. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Illiopolis has the higher population (854 vs 748 in Mechanicsburg). Mechanicsburg has the higher median household income ($77,422 vs $74,219 in Illiopolis). Mechanicsburg has the higher median home value ($206,300 vs $96,500 in Illiopolis).

Population, income & housing

	Illiopolis	Mechanicsburg
Population	854	748
Median age	45.5 yrs	47.8 yrs
Median household income	$74,219	$77,422
Median home value	$96,500	$206,300
Median gross rent	$675	$781
Housing units	383	319
Homeownership rate	80.1%	87.6%
Bachelor's degree or higher	18.4%	22.5%
Unemployment rate	2.0%	2.7%

Trends (ACS 5-year, 2019–2023)

	Illiopolis	Mechanicsburg
Population	822 → 854 (+3.9%)	671 → 748 (+11.5%)
Median household income	$64,063 → $74,219 (+15.9%)	$65,536 → $77,422 (+18.1%)
Median home value	$88,400 → $96,500 (+9.2%)	$119,000 → $206,300 (+73.4%)
Median gross rent	$625 → $675 (+8.0%)	$752 → $781 (+3.9%)

Illiopolis

Population

822854

Median household income

$64,063$74,219

Median home value

$88,400$96,500

Median gross rent

$625$675

Mechanicsburg

Population

671748

Median household income

$65,536$77,422

Median home value

$119,000$206,300

Median gross rent

$752$781

Age & race/ethnicity

Age distribution (share)

	Illiopolis	Mechanicsburg
Under 5	6.6%	3.6%
5 to 17	18.1%	15.8%
18 to 24	4.1%	8.2%
25 to 34	8.5%	7.2%
35 to 44	12.1%	12.7%
45 to 54	10.7%	20.3%
55 to 64	19.4%	13.9%
65 to 74	13.7%	10.6%
75 and over	6.8%	7.8%

Race & ethnicity (share)

	Illiopolis	Mechanicsburg
White (non-Hispanic)	93.6%	90.8%
Black or African American	2.2%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.6%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	2.9%	7.2%
Hispanic or Latino	0.7%	2.0%

Educational attainment (age 25+)

Share of adults 25+

	Illiopolis	Mechanicsburg
No high school diploma	10.7%	3.0%
High school graduate	47.2%	43.7%
Some college or associate's	23.7%	30.8%
Bachelor's degree	13.7%	18.5%
Graduate or professional degree	4.8%	4.1%

Commute to work

How workers get to work (share)

	Illiopolis	Mechanicsburg
Drove alone	79.4%	81.1%
Carpooled	4.4%	2.9%
Public transit	0.0%	0.0%
Walked	6.8%	0.3%
Bicycle	0.0%	0.0%
Worked from home	8.4%	15.7%
Other means	1.0%	0.0%

Housing

Units in structure (share)

	Illiopolis	Mechanicsburg
1-unit, detached	81.7%	85.6%
1-unit, attached	1.0%	0.0%
2 to 4 units	9.7%	0.0%
5 to 19 units	2.9%	4.7%
20 or more units	0.0%	0.0%
Mobile home & other	4.7%	9.7%

Poverty & households

	Illiopolis	Mechanicsburg
Poverty rate	4.3%	8.2%
Average household size	2.39	2.44
Mean commute (minutes)	24	26
Median year structure built	1955	1988