At the time of writing this answer, suicide data is not publically available post 2018.
CDC’s WISQARS™ (Web-based Injury Statistics Query and Reporting System) is an interactive, publically accessible, online database that provides fatal and nonfatal injury, violent death, and cost of injury data from a variety of trusted sources.
The CDC states:
Mortality data come from the National Center for Heath Statistics (NCHS), CDC annual mortality data files. NCHS mortality data are derived from the Multiple Cause of Death data. For more information, contact NCHS at (301)436-8500 or email@example.com — or visit the NCHS website.
The National Death Index (NDI) service has death records added annually, approximately 10-12 months after the end of a particular calendar year. This information is available to investigators solely for statistical purposes in medical and health research. The service is not accessible to organizations or the general public for legal, administrative, or genealogy purposes. To access the NDI service, you need to complete an NCHS application form.
The final 2018 NDI file is available for both NDI Routine searches and NDI Plus searches.
The Early Release File for 2019 is now available for searching. See completion percentages by state
The Early Release File is now updated quarterly. The current searchable version will always be the most recent version.
The National Center for Health Statistics (NCHS) in an agreement with the National Association of Public Health Statistics and Information Systems (NAPHSIS) implemented a restrictive rule for publically reporting National Vital Statistics System (NVSS) state- and county-level death data for years 2008 and later, in order to avoid inadvertent disclosure of cases.