In 2018, there are 10 federal holidays designated by the United States Congress. The US Congress has the authority to create these holidays according to the United States Code. In general, on each of these holidays all non-essential government offices are closed for business. However other entities such as schools, post offices and bank may remain open for service. Additionally, some state and cities may observe local holidays as well. Also, if you are interested in business holidays click here.
Notes...
*November 11, 2018 is the legal holiday for Veterans Day falls on a Sunday, however it is observed on November 12, 2018 (the following Monday). Most federal employees will receive pay and leave for this day, as it is treated as a Federal Holiday.
The creation and observance of Federal holidays started on June 28, 1870 when Congress implemented Federal holidays to align with various similar state/local laws and holidays. 4 holidays were initially created, these are Ney Years Day, Independence Day, Thanksgiving Day and Christmas Day. The remaining holidays were created in the period between 1870 and 1983. In 1983 the final holiday was created in observance of Birthday of Martin Luther King, Jr.
Christmas Day is the most widely observed holiday at 95%, followed closely by Thanksgiving Day at 87%. The least likely observed holiday is Columbus Day weighing in at 8% observance.
For the 2019 U.S. Federal Holidays click here.
The federal Holidays and notes were created using data from the OPM (Office Of Personnel Management) website. This Wikipedia article provided historical data and statistics information