Gillespie vs Mount Olive

A side-by-side comparison of Gillespie and Mount Olive: population, income, housing, and more.

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

Gillespie has the higher population (3,118 vs 1,979 in Mount Olive). Gillespie has the higher median household income ($76,806 vs $55,139 in Mount Olive). Mount Olive has the higher median home value ($96,600 vs $89,500 in Gillespie).

Population, income & housing

	Gillespie	Mount Olive
Population	3,118	1,979
Median age	44.7 yrs	50.6 yrs
Median household income	$76,806	$55,139
Median home value	$89,500	$96,600
Median gross rent	$756	$698
Housing units	1,465	1,057
Homeownership rate	65.2%	74.0%
Bachelor's degree or higher	18.6%	14.2%
Unemployment rate	4.6%	5.6%

Trends (ACS 5-year, 2019–2023)

	Gillespie	Mount Olive
Population	3,086 → 3,118 (+1.0%)	2,062 → 1,979 (-4.0%)
Median household income	$41,624 → $76,806 (+84.5%)	$50,865 → $55,139 (+8.4%)
Median home value	$82,900 → $89,500 (+8.0%)	$73,700 → $96,600 (+31.1%)
Median gross rent	$651 → $756 (+16.1%)	$690 → $698 (+1.2%)

Gillespie

Population

3,0863,118

Median household income

$41,624$76,806

Median home value

$82,900$89,500

Median gross rent

$651$756

Mount Olive

Population

2,0621,979

Median household income

$50,865$55,139

Median home value

$73,700$96,600

Median gross rent

$690$698

Age & race/ethnicity

Age distribution (share)

	Gillespie	Mount Olive
Under 5	8.9%	3.4%
5 to 17	14.1%	11.3%
18 to 24	7.2%	11.6%
25 to 34	13.8%	3.3%
35 to 44	6.5%	13.4%
45 to 54	15.4%	12.8%
55 to 64	13.5%	15.8%
65 to 74	10.0%	19.7%
75 and over	10.6%	8.5%

Race & ethnicity (share)

	Gillespie	Mount Olive
White (non-Hispanic)	92.3%	96.1%
Black or African American	0.0%	1.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.3%	0.0%
Two or more races	6.5%	2.4%
Hispanic or Latino	0.9%	0.6%

Educational attainment (age 25+)

Share of adults 25+

	Gillespie	Mount Olive
No high school diploma	6.9%	7.2%
High school graduate	43.4%	39.5%
Some college or associate's	31.1%	39.1%
Bachelor's degree	13.5%	8.5%
Graduate or professional degree	5.1%	5.7%

Commute to work

How workers get to work (share)

	Gillespie	Mount Olive
Drove alone	84.5%	96.8%
Carpooled	3.3%	1.4%
Public transit	0.0%	0.0%
Walked	0.0%	0.0%
Bicycle	0.0%	0.0%
Worked from home	12.2%	1.9%
Other means	0.0%	0.0%

Housing

Units in structure (share)

	Gillespie	Mount Olive
1-unit, detached	89.8%	78.6%
1-unit, attached	2.1%	0.0%
2 to 4 units	7.4%	14.7%
5 to 19 units	0.7%	3.2%
20 or more units	0.0%	0.0%
Mobile home & other	0.0%	3.5%

Poverty & households

	Gillespie	Mount Olive
Poverty rate	17.0%	14.8%
Average household size	2.43	2.18
Mean commute (minutes)	30	27
Median year structure built	1953	1949