Grace Lutheran Church's Lutheran Women in Mission supports many ministries of Grace and other local efforts: Aid to Grace Lutheran Mission Trips; Organizes Oktoberfest Auction Baskets for the Pastor's Discretionary Fund; Deliver items to the Salvation Army; Collect goods for S.E. Idaho's Feeding the 5000; Give grant funds to chosen mission applicants; and head up the Bookstore & Christian Gift Shop at Grace Lutheran Church.

Based on the Biblical account of the widow's mite (Luke 21:1–4), the Mite Box is intended for regular contributions of "mites" — offerings above and beyond the support given to congregations and the LCMS. Mite Box contributions amount to millions of dollars that fund district and national mission grants and implement the LWML program.