State
Land Area (mi²)
35.0 sq mi
Density (mi²)
332.40/sq mi
2020 Growth Rate
1.04%
Growth Since 2010
5.82%
World Population Review
Cortland, Illinois Population 2021
11,642
Cortland is a city located in Illinois. Cortland has a 2020 population of 11,642. Cortland is currently growing at a rate of 1.04% annually and its population has increased by 5.82% since the most recent census, which recorded a population of 11,002 in 2010. Cortland reached it's highest population of 11,642 in 2021.
The average household income in Cortland is $88,822 with a poverty rate of 8.42%. The median rental costs in recent years comes to $1,141 per month, and the median house value is $173,900. The median age in Cortland is 34.8 years, 34.1 years for males, and 35 years for females.
Cortland Demographics
According to the most recent ACS, the racial composition of Cortland was:
- White: 89.86%
- Black or African American: 6.54%
- Two or more races: 1.60%
- Asian: 1.11%
- Other race: 0.83%
- Native American: 0.05%
- Native Hawaiian or Pacific Islander: 0.00%
The current population of Cortland, Illinois is 11,642 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 11,282.The last official US Census in 2010 recorded the population at 11,002.
Cortland, Illinois Population 2021
| Race | Population | Percentage |
|---|---|---|
| White | 10,087 | 89.86% |
| Black or African American | 734 | 6.54% |
| Two or More Races | 180 | 1.60% |
| Asian | 125 | 1.11% |
| Some Other Race | 93 | 0.83% |
| American Indian and Alaska Native | 6 | 0.05% |
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Cortland Population by Race
Cortland Population Pyramid $2021
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Cortland Population by Age
Cortland Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 3,936 | 2.85 | 72.1 |
| Married | 2,152 | 3.44 | 84.7 |
| Non Family | 1,099 | 1.39 | 53.6 |
| Female | 444 | 2.97 | 64.2 |
| Male | 241 | 4.09 | 59.3 |
3.35
Average Family Size
2.85
Average Household Size
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Cortland Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 106 | 1.49% |
| 9th to 12th Grade | 276 | 3.87% |
| High School Graduate | 1,896 | 26.62% |
| Some College | 1,500 | 21.06% |
| Associates Degree | 696 | 9.77% |
| Bachelors Degree | 1,750 | 24.57% |
| Graduate Degree | 899 | 12.62% |
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Cortland Educational Attainment by Sex (over 25)
Cortland Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 6,072 | 5,823 | 2,185 |
| Black | 505 | 498 | 231 |
| Hispanic | 421 | 295 | 109 |
| Asian | 110 | 110 | 110 |
| Other Race | 93 | ||
| 2+ Races | 37 | 37 | 28 |
| Native American | 1 | 1 |
The highest rate of high school graduation is among native american people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 100.00%.
Cortland Educational Attainment by Race
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$44,931
Average Earnings
$53,490
Average Male
$33,378
Average Female
Cortland Earnings by Educational Attainment
Cortland Language by Age
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Cortland Language
90.12% of Cortland residents speak only English, while 9.88% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 6.46% of the population.
Cortland Language
Cortland Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 9,316 | 573 | 6.15% |
| Hispanic | 903 | 253 | 28.02% |
| Black | 729 | 98 | 13.44% |
| Other | 93 | 93 | 100.00% |
| Asian | 125 | 21 | 16.80% |
8.42%
Overall Poverty Rate
8.48%
Male Poverty Rate
8.37%
Female Poverty Rate
Poverty in Cortland
The race most likely to be in poverty in Cortland is Other, with 100.00% below the poverty level.
The race least likely to be in poverty in Cortland is White, with 6.15% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.13%. Among those working part-time, it was 16.17%, and for those that did not work, the poverty rate was 11.49%.
Cortland Poverty
Cortland Poverty Rate by Education
Cortland Marital Status
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Marriage Rates
51.7%
Overall Marriage Rate
52.5%
Male Marriage Rate
51.0%
Female Marriage Rate
Cortland Married by Age and Sex
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Cortland Marriage
The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.
Cortland Marital Status by Race
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Cortland Marital Status
Cortland Veterans by War
Cortland Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 561 | 7.47% |
| Black | 52 | 9.98% |
| Hispanic | 8 | 1.37% |
Cortland Veterans by Race
Cortland Veterans by Education
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7.50%
Veteran Poverty Rate
36.05%
Veteran Disability Rate
Cortland Veterans by Education
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72.4%
Labor Force Participation
70.2%
Employment Rate
2.9%
Unemployment Rate
Cortland Employment by Age
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Cortland Employment by Race
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Cortland Employment by Education
Origin of Non-Citizens
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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
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94.57%
Native Born
5.43%
Foreign Born
3.23%
Non Citizen
2.20%
Naturalized
Place of Birth
94.57% of Cortland residents were born in the United States, with 74.11% having been born in Illinois. 3.23% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Cortland Place of Birth
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 11,642 | 120 | 1.04% |
| 2020 | 11,522 | 120 | 1.05% |
| 2019 | 11,402 | 120 | 1.06% |
| 2018 | 11,282 | 78 | 0.70% |
| 2017 | 11,204 | 56 | 0.50% |
| 2016 | 11,148 | 29 | 0.26% |
| 2015 | 11,119 | -1 | -0.01% |
| 2014 | 11,120 | 82 | 0.74% |
| 2013 | 11,038 | 24 | 0.22% |
| 2012 | 11,014 | 52 | 0.47% |
| 2011 | 10,962 | -40 | -0.36% |
| 2010 | 11,002 | 0.00% |