WELCA is the women's ministry organization of the Evangelical Lutheran Church in America.  Trinity's WELCA is an active service and mission group that supports both local and global outreach projects such as collecting school supplies, assisting with community Santa Giveaway, making quilts, assembling care kits for Lutheran World Relief, and supporting various charities.

WELCA also maintains a prayer chain, offering prayers for individuals facing spiritual, emotional, or physical challenges.  In addition, members provide meals and support to families and friends during times of loss and funerals.

WELCA organizes two annual fundraisers, the spring rummage sale and fall apple sale.  These events bring together members of all ages to work, serve, and enjoy fellowship while supporting Trinity's mission and outreach efforts.