Halloween falls on Saturday, Oct. 31, and Día de los Muertos follows Nov. 1 and 2. From family-friendly trick-or-treating to late-night costume parties, Boulder County has plenty of ways to celebrate.

Editor’s note: This story is based on campaign finance reports available as of Oct. 21, 2026. The city had not yet published Boulder Progressives’ latest spending report at the time of publication.

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Inside: 66 Halloween and Día de los Muertos events, the Boulder Jewish Film Festival, new ballet works and a chance to design ...

Founded in 1949, the physician-owned medical center brought a new era of specialized care to Boulder. Now its longtime ...

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In this ongoing series, Boulder Reporting Lab columnists Brian Keegan and Bob Yates discuss local issues, exploring where they agree, where they differ and what’s at stake for Boulder. Boulder voters ...

Hotel workers had called on the Sundance Film Festival to help them unionize. A representative for the Sundance Institute ...

The race to represent Boulder on the RTD board has become surprisingly contentious, with disputes over missing campaign signs and pointed exchanges on social media. The two candidates, Jack Rosenthal ...