YouGov routinely collects the postcodes of all its panel members. The British Election Study panel respondents are then coded into various geographies based on these postcodes. Currently, we include variables for three levels of political geography: p_pcon is the respondent’s 2010 Parliamentary Constituency, p_oslaua is the Local Authority and profile_GOR is their Government Office Region. Users can merge in any external data they have recorded at these geographies.
Data for lower levels of geography can be accessed via the UK Data Service. For the 2015 face-to-face survey, LSOA identifiers are available, while for the panel study, MSOA will be available in early 2021.