Marion

Population: 16,796
Median household income: $57,281
Median home value: $145,300

Marion, a community in Williamson County, Illinois, has 16,796 residents. At $57,281, its median household income sits below Williamson County's $65,521.

Between 2019 and 2023, Marion's population declined 4.5% from 17,595 to 16,796, while its median home value rose 25.8% from $115,500 to $145,300.

64.5% of homes are single-family detached houses. The typical home was built around 1979.

Demographics

ACS 2019–2023

Population: 16,796
Median age: 40.4 yrs
Median household income: $57,281
Median home value: $145,300
Median gross rent: $878
Housing units: 8,804
Homeownership rate: 62.2%
Bachelor's degree or higher: 27.4%
Unemployment rate: 4.0%

Trends

ACS 5-year · 2019–2023

Population

17,59516,796

Median household income

$43,502$57,281

Median home value

$115,500$145,300

Median gross rent

$740$878

Year	Population	Median household income	Median home value	Median gross rent
2019	17,595	$43,502	$115,500	$740
2020	17,539	$44,929	$125,600	$728
2021	16,960	$46,515	$131,800	$772
2022	16,867	$54,052	$143,600	$823
2023	16,796	$57,281	$145,300	$878

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.6%

5 to 1716.5%

18 to 246.2%

25 to 3412.4%

35 to 4416.1%

45 to 5410.3%

55 to 649.8%

65 to 7413.5%

75 and over9.6%

	Count	Share
Under 5	941	5.6%
5 to 17	2,763	16.5%
18 to 24	1,045	6.2%
25 to 34	2,086	12.4%
35 to 44	2,706	16.1%
45 to 54	1,728	10.3%
55 to 64	1,642	9.8%
65 to 74	2,273	13.5%
75 and over	1,612	9.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	14,292	85.1%
Black or African American	862	5.1%
American Indian & Alaska Native	29	0.2%
Asian	466	2.8%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	33	0.2%
Two or more races	488	2.9%
Hispanic or Latino (any race)	626	3.7%

Educational attainment (age 25+)

No high school diploma6.2%

High school graduate29.9%

Some college or associate's36.5%

Bachelor's degree16.2%

Graduate or professional degree11.2%

	Count	Share
No high school diploma	747	6.2%
High school graduate	3,600	29.9%
Some college or associate's	4,394	36.5%
Bachelor's degree	1,953	16.2%
Graduate or professional degree	1,353	11.2%

Commute to work

Mean travel time to work: 22 min

Drove alone77.2%

Carpooled7.2%

Public transit0.1%

Walked1.2%

Bicycle0.0%

Worked from home13.9%

Other means0.4%

How workers get to work

	Count	Share
Drove alone	5,554	77.2%
Carpooled	518	7.2%
Public transit	9	0.1%
Walked	89	1.2%
Bicycle	0	0.0%
Worked from home	997	13.9%
Other means	26	0.4%

Travel time

	Count	Share
Under 15 min	2,720	43.9%
15 to 29 min	1,805	29.1%
30 to 44 min	907	14.6%
45 to 59 min	422	6.8%
60+ min	342	5.5%

Households

Average household size: 2.05
Poverty rate: 16.0% (2,604 of 16,306)

	Count	Share
Family households	4,304	53.9%
Nonfamily households	3,679	46.1%

Housing

Median year structure built: 1979

Occupancy

	Count	Share
Occupied	7,983	90.7%
Vacant	821	9.3%

Tenure (of occupied units)

	Count	Share
Owner-occupied	4,964	62.2%
Renter-occupied	3,019	37.8%

1-unit, detached64.5%

1-unit, attached0.6%

2 to 4 units18.0%

5 to 19 units7.4%

20 or more units5.2%

Mobile home & other4.3%

Units in structure

	Count	Share
1-unit, detached	5,680	64.5%
1-unit, attached	50	0.6%
2 to 4 units	1,582	18.0%
5 to 19 units	648	7.4%
20 or more units	462	5.2%
Mobile home & other	382	4.3%

Geography

Place GEOID: 1746916
Type (LSAD): 25
Land area: 14 sq mi
Water area: 0.22 sq mi
Center point: 37.7344, -88.9412