One of the U.S. Department of Agriculture Rural Development’s most popular programs is the funding for public water and sewer infrastructure projects in rural communities. This article reviews the water and sewer infrastructure projects funded in the state of Oklahoma between 1990 and 2000 and evaluates their impact on different measures of economic growth over both the short (one to 10 years) and long (10 to 20 years) term. Evaluation techniques include multivariate regression and average treatment effects. Results suggest that although most economic growth measures (population, income levels, and poverty levels) are not impacted by the program, housing values do show a statistically significant increase in communities receiving water or sewer infrastructure funding over the long term.