Marion is a city located in Jackson County and Williamson County Illinois. Marion has a 2024 population of 16,620. It is also the county seat of Williamson County. Marion is currently declining at a rate of -0.32% annually and its population has decreased by -1.29% since the most recent census, which recorded a population of 16,838 in 2020.
The average household income in Marion is $77,870 with a poverty rate of 15.03%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Marion is 40.8 years, 39.5 years for males, and 41.9 years for females.
According to the most recent ACS, the racial composition of Marion was:
White
Two or more races
Black or African American
Asian
Other race
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 8,028 | 2.05 | 62 | 38 |
| Non Family | 3,829 | 1.2 | 49.5 | 50.5 |
| Married | 2,928 | 2.74 | 87.3 | 12.7 |
| Female | 819 | 3.03 | 37.4 | 62.6 |
| Male | 452 | 3 | 48.9 | 51.1 |
2.71
Average Family Size
2.05
Average Household Size
62.0%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among other race people with a rate of 100%.
The highest rate of bachelors degrees is among native american people with a rate of 64.29%.
All
Male
Female
$46,099
Average Earnings
$47,029
Average Male
$40,302
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
96.34% of Marion residents speak only English, while 3.66% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 2.59% of the population.
rate
15.03%
Overall Poverty Rate
14.14%
Male Poverty Rate
15.88%
Female Poverty Rate
The race most likely to be in poverty in Marion is Hispanic, with 40.95% below the poverty level.
The race least likely to be in poverty in Marion is Asian, with 10.52% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.41%. Among those working part-time, it was 16.44%, and for those that did not work, the poverty rate was 23.42%.
Married
Widowed
Divorced
Separated
NeverMarried
43.7%
Overall Marriage Rate
44.4%
Male Marriage Rate
43.1%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
5.65%
Veteran Poverty Rate
47.05%
Veteran Disability Rate
LaborForceParticipation
57.8%
Labor Force Participation
55.1%
Employment Rate
4.6%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
76.71%
Born in Marion
97.78%
Native Born
2.22%
Foreign Born
1.29%
Non Citizen
0.92%
Naturalized
97.78% of Marion residents were born in the United States, with 76.71% having been born in Illinois. 1.29% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 16,347 | -55 | -0.34% |
| 2028 | 16,402 | -54 | -0.33% |
| 2027 | 16,456 | -55 | -0.33% |
| 2026 | 16,511 | -54 | -0.33% |
| 2025 | 16,565 | -55 | -0.33% |
| 2024 | 16,620 | -54 | -0.32% |
| 2023 | 16,674 | -55 | -0.33% |
| 2022 | 16,729 | -22 | -0.13% |
| 2021 | 16,751 | -87 | -0.52% |
| 2020 | 16,838 | -672 | -3.84% |
| 2019 | 17,510 | -82 | -0.47% |
| 2018 | 17,592 | 17 | 0.1% |
| 2017 | 17,575 | -75 | -0.42% |
| 2016 | 17,650 | 49 | 0.28% |
| 2015 | 17,601 | -134 | -0.76% |
| 2014 | 17,735 | -9 | -0.05% |
| 2013 | 17,744 | 400 | 2.31% |
| 2012 | 17,344 | 14 | 0.08% |
| 2011 | 17,330 | 99 | 0.57% |
| 2010 | 17,231 | 1,196 | 7.46% |
| 2000 | 16,035 | 1,490 | 10.24% |
| 1990 | 14,545 | 514 | 3.66% |
| 1980 | 14,031 | 2,307 | 19.68% |
| 1970 | 11,724 | 450 | 3.99% |
| 1960 | 11,274 | 815 | 7.79% |
| 1950 | 10,459 | 1,208 | 13.06% |
| 1940 | 9,251 | 218 | 2.41% |
| 1930 | 9,033 | -549 | -5.73% |
| 1920 | 9,582 | 2,489 | 35.09% |
| 1910 | 7,093 | 4,583 | 182.59% |
| 1900 | 2,510 | 0 | 0% |