Data presented are results of surveys for California Gnatcatchers and vegetation sampling conducted in 2020 to address two inter-related questions: (1) How have gnatcatchers and their habitat recovered in areas burned by wildfires in 2003, 2007, and 2014?, and (2) What is the current regional occupancy of gnatcatchers throughout their southern California range? In 2020 a fifth fire category was added (2015-2019) which changed the sample sizes for the other fire categories: 2003-2006 (102 points), 2007-2010 (106 points), 2011-2014 (95 points), 2015-2019 (25 points), unburned (96 points). All post-fire study points were in San Diego County. The regional occupancy surveys included 327 points in 2020 throughout southern California. The post-fire and regional datasets are not mutually exclusive, with some points serving in both analyses. Vegetation data were collected at each point to facilitate analyses identifying habitat correlates of California gnatcatcher occurrence.