Invest Early is a comprehensive early childhood collaborative of four school districts in Itasca County, Minnesota, that serves young children and their families with risk factors that may impede school success. Wilder Research, in conjunction with the Invest Early leadership team and staff, is conducting a longitudinal evaluation of the program. Annual reports document the implementation and assessment of Invest Early and outcomes for the service system, families, and children. In year 12 (June 2016 through May 2017), 460 children age 5 and younger and 398 families participated in Invest Early. As usual, a majority (69%) of children served were prekindergarten age (4 or older on September 1, 2016). The remaining were about evenly split between infants/toddlers and preschoolers (age 3). This year, Invest Early families had a median income of $26,000 per year, substantially lower than the county-wide median income of $56,000. This summary presents highlights of the year 12 evaluation. [For "Invest Early, Early Childhood Initiative. Year 11 Evaluation Summary," see ED612504.]