Undercount remains an issue for Taiwanese in the 2020 ACS data. See the following image for the population of Taiwanese around the United States according to the 2020 American Community Survey.
source – IPUMS Online Data Analysis System, 2020 ACS Race and Ancestry Data
Counting by Race vs Counting by Ancestry
According to Pew Research article, “surveys can produce widely different estimates depending on how people are asked about their backgrounds.”
2020 American Community Survey reported Taiwanese Count under Race at 262,192 while Taiwanese Count by Ancestry at 391,295.
Read the complete pew research paper on Taiwanese undercount here
