Spring 2026 Station Information Profile (SIP) on File with Nielsen
| Call Letter: | WCSF-FM | |
| Frequency: | 88.7 | |
| Station Name: | WCSF | |
| Format: | Alternative | |
| Network(s): | IND | |
| City of License: | JOLIET | |
| County of License: | Will | |
| Mailing Address: | 500 WILCOX ST JOLIET, IL 60435 |
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| Phone: | 815-740-3697 | |
| Fax: | 815-740-4285 | |
| URL Address: | wcsf.streamon.fm | |
| Broadcasts in HD: |
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| Internet Streams: |
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Spring 2026 Reminder:
You no longer need to submit program information to Nielsen.
To view the simulcast combos that have requested Total Line Reporting, click here .