The latitude and longitude of Oneco, Illinois is:

42° 29' 15" N

/ 89° 39' 51" W

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Oneco, IL

Do you live in Oneco, Illinois? Help us verify the data and let us know if you see any information that needs to be changed or updated.

County: Stephenson County

State: Illinois

Country: United States

Latitude: 42.487511

Longitude: -89.6642856

Time zone: America/Chicago

Current time zone offset: UTC/GMT -5 hours

The current time and date in Oneco is 10:56 PM on Saturday, August 2, 2025.

Local map of Oneco

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