Dillingham also served as Director of the Peace Corps Office of Strategic Information, Research, and Planning.

[1] In addition, Dillingham was the deputy director for the National District Attorneys Association and administrator of the American Prosecutors Research Institute.

[1] Dillingham was sworn in as the 25th director of the United States Census Bureau on January 7, 2019.

[1] He was nominated by President Donald Trump in 2018 and was confirmed by the United States Senate in a unanimous vote on January 2, 2019.

[5] His departure from the office was marked by accusations that he supported a partisan effort to try to use potentially inaccurate data on undocumented immigrants to exclude them from congressional apportionment.