About 75% of the government has been funded. The portion of the federal workers not yet funded amounts to about 25% of the workers, or around 380,000 total. These are people employed in every single state. Many get their last paycheck on December 31 (Monday). Many MORE people who are NOT government workers are being furloughed as well, because they work for private companies who are doing contract work for the government, such as the Department of Transportation (currently affected by the shutdown).
Who is affected? Over 800,000 people across the country altogether. This includes 86% of the Department of Commerce; 96% of NASA; 80+% of the National Park Service; 80% of the Forest Service; 30% of the Department of Transportation. They all MUST take mandatory unpaid leave days.
There are others (420,000) who can work without pay: 88% of the Department of Homeland Security, including over 40,000 federal corrections and law enforcement officers.
Most ironic fact: the shutdown, which President Trump says is because Democrats don't care about Border Security, has a huge impact on border security officials, who work for the Dept. of Homeland Security. President Trump said, "I will take the mantle. I will be the one to shut it down. I'm not going to blame you (Pelosi and Schumer) for it."