Golden Eagles (Aquila chrysaetos) are long-lived, top predators and are vulnerable to a variety of threats. There is increasing concern about the declining population in coastal southern California, which has largely coincided with habitat loss due to urbanization of the region. This Mediterranean-type ecosystem is also experiencing more prolonged and intense droughts. The impact of drought on Golden Eagles is unknown, although drought can reduce populations of their key local prey, such as jackrabbits. Here, we used GPS tracking data to calculate eagle home ranges and hypothesized that home range size would be influenced by drought such that home ranges would be larger to meet their resource needs with worsening drought severity. Fifty individual eagles were captured over seven breeding seasons, spanning the time both during and after the historic 2012-2016 drought. We found that drought severity predicted Golden Eagle home range size and as drought severity worsened, home range sizes for adults increased in area. Drought-breaking rainfall corresponded with dramatically smaller home ranges compared to home range sizes during drought years. Our results suggest that the frequent and severe drought that is projected for this region could lead to lowered nesting density and an increased risk of further decline.