My organisation (and others I presume) would find it useful to populate a set of custom fields based upon a contact's postal code.
The dataset is the Scottish Index of Multiple Deprivation (SIMD), which provides demographic information by postal code area. The data is available as a CSV file: http://www.gov.scot/Topics/Statistics/SIMD/SIMDPostcodeLookup
What would be the best way of implementing this?