What County Is Chicago, Illinois In?
Chicago is in Cook County and DuPage County. Check a specific address near a county line.
- Official code
- 1714000
- Representative coordinates
- 41.837045, -87.684939
- Land area
- 589.864 km²
- Water area
- 17.576 km²
- State
- Illinois
The representative point identifies this area. It is not a street address or a boundary survey.
County boundaries in Chicago
This place crosses county lines. A city name alone cannot identify the county for every address. Check a point on the county map.
Coordinates of Chicago
41.837045, -87.684939 is the Census representative point, not a street address. Convert these coordinates or prepare a map link.
Elevation at the representative point
181 m · 593 ft. USGS ground estimate at 41.837045, -87.684939. USGS 3DEP terrain. Terrain cell (nominal): 1 m. Vertical datum: North American Vertical Datum of 1988 (NAVD 88). Terrain height varies across the place; this is not a city-wide or surveyed elevation. Request height at a different point.
Today’s sunrise and sunset
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Approximate calculations at the representative coordinates, using a level horizon. Terrain and weather can change what you see.
Time zones in Chicago
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
60007 · 60018 · 60106 · 60131 · 60176 · 60601 · 60602 · 60603 · 60604 · 60605 · 60606 · 60607 · 60608 · 60609 · 60610 · 60611 · 60612 · 60613 · 60614 · 60615 · 60616 · 60617 · 60618 · 60619 · 60620 · 60621 · 60622 · 60623 · 60624 · 60625 · 60626 · 60628 · 60629 · 60630 · 60631 · 60632 · 60633 · 60634 · 60636 · 60637 · 60638 · 60639 · 60640 · 60641 · 60642 · 60643 · 60644 · 60645 · 60646 · 60647 · 60649 · 60651 · 60652 · 60653 · 60654 · 60655 · 60656 · 60657 · 60659 · 60660 · 60661 · 60707 · 60804 · 60827
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Before using this answer on a form
A city boundary, a CDP and a mailing city can mean different things.
Find the county at your current point, check its ZIP area, or find its physical time zone.