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Cortland township, DeKalb County, IL

11,265 Population
35 square miles 321.6 people per square mile

Census data: ACS 2023 5-year unless noted

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Demographics

35.6 ±2.1 Median age
  • about 10 percent higher than the figure in DeKalb County: 32.6 ±0.3
  • about 90 percent of the figure in Illinois: 38.9 ±0.1

Economics

$40,564 ±$2,578 Per capita income
  • about 20 percent higher than the amount in DeKalb County: $35,054 ±$1,012
  • about 90 percent of the amount in Illinois: $45,104 ±$196
$96,500 ±$12,108 Median household income
  • about 1.4 times the amount in DeKalb County: $69,022 ±$2,476
  • about 20 percent higher than the amount in Illinois: $81,702 ±$363

6.5% ±3% (729  ±337) Persons below poverty line
  • about two-fifths of the rate in DeKalb County: 15.9% † 15,291 (±1.9% / ±1,859)
  • about half the rate in Illinois: 11.7% 1,454,217 (±0.2% / ±18,530)

27.1 minutes ±2.6 (154,100  ±18,795) Mean travel time to work
  • about the same as the figure in DeKalb County: 26.7 1,251,890 (±1.1 / ±61,209)
  • a little less than the figure in Illinois: 28.1 148,440,910 (±0.1 / ±701,124)

Families

4,174 ±203 Number of households
  • DeKalb County: 39,314 ±414
  • Illinois: 5,001,904 ±7,673
2.7 ±0.1 (11,265  ±41) Persons per household
  • about 10 percent higher than the figure in DeKalb County: 2.4 96,087 (±0 / ±108)
  • about 10 percent higher than the figure in Illinois: 2.5 12,414,044

6% ±3.3% (167  ±96) Women 15-50 who gave birth during past year
  • about 1.4 times the rate in DeKalb County: 4.3% † 1,135 (±1% / ±260)
  • about 20 percent higher than the rate in Illinois: 5% 150,099 (±0.1% / ±3,035)

Housing

4,363 ±198 Number of housing units
  • DeKalb County: 41,499 ±79
  • Illinois: 5,443,501 ±767

$240,400 ±$11,759 Median value of owner-occupied housing units
  • a little higher than the amount in DeKalb County: $231,900 ±$4,843
  • a little less than the amount in Illinois: $250,500 ±$863

13.7% ±4.6% (1,527  ±515) Moved since previous year
  • about 80 percent of the rate in DeKalb County: 17.6% 17,543 (±1.6% / ±1,620.9)
  • about 20 percent higher than the rate in Illinois: 11.5% 1,442,284 (±0.1% / ±14,975.1)

Social

96.8% ±6.8% (7,147  ±568.6) High school grad or higher
  • a little higher than the rate in DeKalb County: 92.4% 55,705 (±2.6% / ±1,614.4)
  • about 10 percent higher than the rate in Illinois: 90.3% 7,887,284 (±0.3% / ±22,684.6)
40.3% ±4.2% (2,978  ±330.3) Bachelor's degree or higher
  • about 25 percent higher than the rate in DeKalb County: 32.7% 19,705 (±1.6% / ±955.7)
  • about 10 percent higher than the rate in Illinois: 37.2% 3,249,494 (±0.2% / ±13,788.4)

N/A Persons with language other than English spoken at home

2.8% ±1.6% (318  ±176) Foreign-born population
  • about two-fifths of the rate in DeKalb County: 6.4% 6,440
  • about one-fifth of the rate in Illinois: 14.5% 1,833,810

4.9% ±1.7% (422  ±145) Population with veteran status
  • a little less than the rate in DeKalb County: 5.1% † 4,024 (±0.6% / ±451)
  • a little less than the rate in Illinois: 5% 493,667 (±0.1% / ±4,919)
422 Total veterans ±145 418 Male ±145 4 Female ±6

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