According to the 2000 Census, Mason County, Washington has a population of 49,405 people. Of those, 43,705 (88%) are White, 587 (1%) are Black, and 2,361 (4%) are Latino. However, 1,930 (or 4% of the 49,405 people) are not residents by choice but are people in prison.
A more accurate description would not include the prisoners. This would give Mason County a population of 47,475 with a demographic that is 89% White, 0% Black, and 5% Latino.