ZIP Code Tabulation Area · Illinois

ZIP Code 60112: Cortland, IL

ZIP Code 60112 (Cortland, DeKalb County, Illinois) has an estimated 4,621 residents in 1,599 households. The median household income is $72,831, the median home value is $229,900 and the median gross rent is $1,552/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Total population

4,621

Margin of error ±323

Median household income

$72,831

Margin of error ±$15,746

Median home value

$229,900

Margin of error ±$21,182

Median gross rent

$1,552/mo

Margin of error ±$364

Median age

31.5 yrs

Margin of error ±3.2 yrs

Mean travel time to work

25.6 min

Margin of error ±5.6 min

How ZIP 60112 compares with Illinois and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 6011231.5 yrsIllinois39.0 yrsUnited States38.9 yrs

Median household income

ZIP 60112$72,831Illinois$83,390United States$80,734

Per capita income

ZIP 60112$32,908Illinois$46,406United States$44,673

Poverty rate

ZIP 601126.9%Illinois11.8%United States12.5%

Unemployment rate

ZIP 601128.1%Illinois5.8%United States5.2%

Bachelor's degree or higher

ZIP 6011226.6%Illinois37.8%United States35.7%

Median home value

ZIP 60112$229,900Illinois$263,300United States$332,700

Median gross rent

ZIP 60112$1,552/moIllinois$1,274/moUnited States$1,413/mo

Owner-occupied homes

ZIP 6011278.6%Illinois67.1%United States65.2%

Mean travel time to work

ZIP 6011225.6 minIllinois27.8 minUnited States26.4 min

Worked from home

ZIP 601129.4%Illinois15.9%United States15.1%

All figures for ZIP 60112

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 60112 — ACS 2020–2024 5-year estimates
Measure	ZIP 60112	Margin of error	Illinois	United States
Total population	4,621	±323	12,694,798	334,922,499
Median age	31.5 yrs	±3.2 yrs	39.0 yrs	38.9 yrs
Households	1,599	±136	5,036,449	129,227,496
Median household income	$72,831	±$15,746	$83,390	$80,734
Per capita income	$32,908	±$3,191	$46,406	$44,673
Poverty rate	6.9%	±4.9 pts	11.8%	12.5%
Unemployment rate	8.1%	±5.9 pts	5.8%	5.2%
Bachelor's degree or higher	26.6%	±6.4 pts	37.8%	35.7%
Median home value	$229,900	±$21,182	$263,300	$332,700
Median gross rent	$1,552/mo	±$364	$1,274/mo	$1,413/mo
Owner-occupied homes	78.6%	±7.1 pts	67.1%	65.2%
Mean travel time to work	25.6 min	±5.6 min	27.8 min	26.4 min
Worked from home	9.4%	±3.6 pts	15.9%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 60112
Group	ZIP 60112	Illinois	United States
White alone, not Hispanic or Latino	70.4%	58.1%	57.4%
Black or African American alone, not Hispanic or Latino	5.0%	13.3%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.0%	0.1%	0.5%
Asian alone, not Hispanic or Latino	0.7%	5.9%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.0%	0.2%
Some other race alone, not Hispanic or Latino	0.0%	0.4%	0.6%
Two or more races, not Hispanic or Latino	7.0%	3.4%	4.3%
Hispanic or Latino (of any race)	16.9%	18.8%	19.3%

Where ZIP 60112 is

State: Illinois
Main county: DeKalb County
Largest overlapping place: Cortland (75% of the ZIP's land area)
Land area: 3.66 sq mi· about 1,263 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in DeKalb County

60111 DeKalb County, IL 60115 DeKalb, IL 60135 DeKalb County, IL 60145 DeKalb County, IL 60146 DeKalb County, IL 60150 DeKalb County, IL 60178 DeKalb County, IL 60520 DeKalb County, IL 60548 DeKalb County, IL 60550 DeKalb County, IL 60552 DeKalb County, IL 60556 DeKalb County, IL

See every ZIP code in Illinois, or compare ZIP 60112 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.