Cortland

Population: 4,556
Median household income: $82,750
Median home value: $203,700

Located in DeKalb County, Illinois, Cortland is a community with a population of 4,556. The median household income of $82,750 is above the DeKalb County median ($69,022).

Between 2019 and 2023, Cortland's population grew 10.5% from 4,124 to 4,556, while its median home value rose 30.5% from $156,100 to $203,700.

Households average 2.89 people. The median gross rent is $1,420.

Demographics

ACS 2019–2023

Population: 4,556
Median age: 31.9 yrs
Median household income: $82,750
Median home value: $203,700
Median gross rent: $1,420
Housing units: 1,631
Homeownership rate: 77.0%
Bachelor's degree or higher: 31.1%
Unemployment rate: 6.1%

Trends

ACS 5-year · 2019–2023

Population

4,1244,556

Median household income

$84,900$82,750

Median home value

$156,100$203,700

Median gross rent

$1,218$1,420

Year	Population	Median household income	Median home value	Median gross rent
2019	4,124	$84,900	$156,100	$1,218
2020	4,261	$74,821	$162,700	$1,300
2021	4,436	$72,431	$167,900	$1,374
2022	4,734	$76,869	$196,300	$1,423
2023	4,556	$82,750	$203,700	$1,420

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

Age distribution

Under 56.3%

5 to 1718.3%

18 to 2411.2%

25 to 3419.4%

35 to 4416.1%

45 to 549.4%

55 to 6411.2%

65 to 743.5%

75 and over4.6%

	Count	Share
Under 5	285	6.3%
5 to 17	836	18.3%
18 to 24	508	11.2%
25 to 34	884	19.4%
35 to 44	732	16.1%
45 to 54	429	9.4%
55 to 64	512	11.2%
65 to 74	159	3.5%
75 and over	211	4.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	3,251	71.4%
Black or African American	414	9.1%
American Indian & Alaska Native	0	0.0%
Asian	0	0.0%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	0	0.0%
Two or more races	96	2.1%
Hispanic or Latino (any race)	795	17.4%

Educational attainment (age 25+)

No high school diploma5.9%

High school graduate30.3%

Some college or associate's32.7%

Bachelor's degree17.6%

Graduate or professional degree13.5%

	Count	Share
No high school diploma	174	5.9%
High school graduate	887	30.3%
Some college or associate's	956	32.7%
Bachelor's degree	514	17.6%
Graduate or professional degree	396	13.5%

Commute to work

Mean travel time to work: 27 min

Drove alone83.3%

Carpooled7.5%

Public transit2.6%

Walked0.5%

Bicycle0.0%

Worked from home6.0%

Other means0.0%

How workers get to work

	Count	Share
Drove alone	2,087	83.3%
Carpooled	189	7.5%
Public transit	65	2.6%
Walked	13	0.5%
Bicycle	0	0.0%
Worked from home	151	6.0%
Other means	0	0.0%

Travel time

	Count	Share
Under 15 min	832	35.3%
15 to 29 min	686	29.1%
30 to 44 min	316	13.4%
45 to 59 min	222	9.4%
60+ min	298	12.7%

Households

Average household size: 2.89
Poverty rate: 8.0% (360 of 4,525)

	Count	Share
Family households	1,105	70.1%
Nonfamily households	472	29.9%

Housing

Median year structure built: 1996

Occupancy

	Count	Share
Occupied	1,577	96.7%
Vacant	54	3.3%

Tenure (of occupied units)

	Count	Share
Owner-occupied	1,215	77.0%
Renter-occupied	362	23.0%

1-unit, detached67.4%

1-unit, attached12.3%

2 to 4 units5.2%

5 to 19 units15.1%

20 or more units0.0%

Mobile home & other0.0%

Units in structure

	Count	Share
1-unit, detached	1,099	67.4%
1-unit, attached	200	12.3%
2 to 4 units	85	5.2%
5 to 19 units	247	15.1%
20 or more units	0	0.0%
Mobile home & other	0	0.0%

Geography

Place GEOID: 1716470
Type (LSAD): 43
Land area: 3.59 sq mi
Water area: 0.01 sq mi
Center point: 41.9372, -88.6893