A system for reducing crowdsourcing network traffic has a server that aggregates data from a plurality of devices within a particular area. The devices determine their locations using, for example, a location engine (e.g., Global Positioning System (GPS)) to learn its geographic coordinates. As part of the crowdsourcing exercise, the device opportunistically scans for nearby communication nodes, such as Wi-Fi access points and the like. When a communication node is found, the electronic device associates the device's location coordinates with the detected communication nodes to create data that is tagged with the identity of the communication nodes. The tagged data may be stored locally on the electronic device and periodically uploaded to the server. When the server has sufficient information on the communication nodes in the area, the server sends a notification to the devices to refrain from additionally scanning for and/or sending additional tagged data, thereby curbing the amount of network traffic.