 However, most of the population influx resided in Richland and Kennewick, as Pasco remained primarily driven by the agricultural industry, and to a lesser degree the NP Pasco rail yards.After the end of World War II, the entire region went through several "boom" and "bust" periods, cycling approximately every 10 years and heavily based on available government funding for Hanford-related work.Farming continues to be the economic driver for most of the city's industrial tax base.