The California Gold Rush dramatically increased the population, led to the founding of cities, and contributed to economic development.

The California Gold Rush of 1848 had a transformative effect on the Pacific Coast. It brought an influx of people from across the globe, causing California's population to grow rapidly. This surge in settlers led to the establishment of numerous cities and towns, as communities formed around gold mining areas. Economically, the Gold Rush spurred growth in transportation, retail, and agriculture, as demand for supplies and services surged. Ultimately, it played a pivotal role in California's development and its eventual statehood.