This Main Census Report - Union (Census Report Volume 2) - is the second in a series of publications to be released from the 2014 Myanmar Population and Housing Census (2014 MPHC). It contains detailed information on demographic and socio-economic characteristics of the population and households at the Union and State/Region level. The initial analysis indicates that the 2014 MPHC data are complete and accurate. However, census enumeration did not cover some population groups in the northern parts of Rakhine State and in a few areas in Kachin State. In parts of Hpa Pun Township in Kayin State, only the total number of households and population by sex were submitted to the Census Office. The Government, with support from UNFPA, minimised the impact of these situations as much as possible and estimated the population missed in these areas. The estimates and the methodology used for estimation of the population not counted in these areas are provided in section 1.3 of this report.