Statistical Programs and StandardsPublished by the Office of Management and Budget, Statistical Programs of the United States Government is an annual publication listing the 13 principal statistical agency programs of the United States and the nearly 100 smaller programs run as part of various federal agencies.
Statistical Programs of the United States provides a topical listing of programs as well as a breakdown of programs by top level federal agencies. With more than 100 programs listed, if a principal statistical agency does not have the information you are looking for, chances are one of the more specialized programs listed here will.
While not every federal agency is responsible for a principal statistical agency, just about every federal agency runs some manner of statistical program, and generally more than just one. These bureaus, programs, departments, and agencies generally focus on narrow topics related in some way to the agencies they are a part of.