Betting shop licences are sourced from the Gambling Commission 'premises register' at June 2016, and geocoded to the full unit postcode (which typically includes 15 delivery points). The locations include licences with a status of 'active', 'variation' or 'grant'.In some cases there is more than one licence within a postcode, which is reflected in the online mapping with colour coded symbols.
Active, granted and variation licences
Betting shop licences by Parliamentary Constituencies, 06/2016
OAC, or Output Area Classification, is a geodemographic system of categorising neighbourhoods acording to their demographic type, based on Census data. 8 'supergroups' of neighbourhood types are then sub-divided into 26 groups. More details can be found at http://opengeodemographics.com
The number of people claiming Jobseekers Allowance (JSA) and National Insurance Credits at Jobcentre Plus local offices. The Office for National Statistics (ONS) uses this unemployment proxy dataset as an indicative statistic for areas smaller than Local Authorities. England and Wales Lower Super Output Areas have 1500 residents on average, and Scotland Data Zones have around 800 residents.