The State Need Grant (SNG) has been Washington state's largest need-based financial aid program for low-income students. The year 2007-08 was the last year in which it was funded sufficiently to serve nearly all (98 percent) of eligible students. From 2010-2018, up to 30 percent of eligible students were unserved. In 2013, the Washington State Board for Community and Technical Colleges first studied the differences in student persistence impacted by the unmet financial need between served and unserved students who enrolled in community and technical colleges in 2012. This research brief updates the first report for 36,600 SNG eligible students enrolled in 2018. The key findings are consistent with the first report in that served students have more of their total financial need met, therefore reducing hardship and subsequently resulting in higher fall-to-spring quarter retention compared to unserved students. [For "A Descriptive Study of Washington State Need Grant Eligible Students Enrolled in Community and Technical Colleges in 2011-12. Research Report," see ED608977.]