Cortland, IL ZIP codes

3 ZIP/ZCTAs intersecting this Census place in DeKalb County.

ACS 2023 population

4,556

Median household income

$82,750

Median home value

$203,700

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Cortland (GEOID 1716470). Methodology

Combined population of ZIP/ZCTAs intersecting this place: 51,367 (3 ZIPs).

Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology

Map of Cortland, IL

Census place boundary and intersecting ZIP Code Tabulation Areas for Cortland, IL — Census place boundary for Cortland, IL. Intersecting ZCTAs may extend past the city limit. Not a USPS city limit. Boundaries: U.S. Census Bureau. Methodology · Data sources

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ZIP/ZCTA overlap with Cortland

Population overlap

Share of each ZIP/ZCTA’s population located within Cortland, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

6011296.2%
USPS primary city
601150.0%
601510.3%

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Cortland

ZIP	City	County	Population	Income
60112	Cortland	DeKalb County	4,611	$79,506
60115	Dekalb	DeKalb County	42,461	$46,808
60151	Maple Park	Kane County	4,295	$121,667