We examine whether the El Dorado Promise, a guaranteed college scholarship program for students in the El Dorado School District (EDSD), affected elementary and middle school achievement using a quasi-experimental matching design. We first match the EDSD with similar districts to create a pool of potential comparison students then match students on prior achievement and demographics. The Promise leads to an estimated 0.11 standard deviation gain in math achievement; this effect is statistically significant and practically meaningful. Results are similar from district-level synthetic control and difference-in-differences analyses. We find larger effects on students with above-average prior achievement. We are unable to construct an appropriate comparison group to estimate the impact of the Promise on literacy achievement.