Across all platforms, the US digital map user base totaled 163 million in June 2014, a 9% rise from June 2013, according to comScore data provided by MapQuest. The number of mobile and tablet map users rose 22% year over year to 117 million, while the desktop map user tally fell 16% to 76 million. Digging deeper into map user access habits, data from comScore Media Metrix Multi-Platform showed US internet users doing almost all of their map activity from mobile devices, with 90% of users’ time spent with maps occurring via either smartphone or tablet in May 2014. That smartphone users use maps regularly is not in doubt. For example, a March 2014 survey by B2X Care Solutions and Motorola found that 52% of US smartphone users had used Google Maps during the month, and 59% stated they had used their phones’ GPS system in that timeframe. Read the rest at eMarketer.