# Longitude and latitude

For the greatest precision, and to keep Bing transactions to a minimum, it is recommended that you use longitude and latitude co-ordinates as variables to create plot maps, rather than geographic variables such as UK Postcode or US Zip code.

## Creating a plot map with longitude and latitude

For example:

1. Create a selection identifying people in the Coventry Postal Area earning £70-80k and above - **High Earners in the CV Postal Area**.
2. Drag and drop the **Map** tool on top of the selection window.
3. Click on the **Layer 1** tab.
4. Change the **Title** to **High Earners in CV Postal Area**.
5. Drag and drop your **Latitude** variable as the first geographic variable, and **Longitude** as the second.
6. **Build** the display.

When you zoom in over the CV Postal Area of the resulting map, you will see a pinpoint to represent the location of the people represented in the underlying selection - in this example, High Earners in the CV Postal Area.

Related topics:

- [Viewing the map](<https://help.apteco.com/en/faststats/visualisation/map/bing-maps/plot-map/viewing-the-map/index.md>)
- [Viewing the results](<https://help.apteco.com/en/faststats/visualisation/map/bing-maps/plot-map/viewing-the-results/index.md>)
- [Selecting using longitude and latitude variables](<https://help.apteco.com/en/faststats/visualisation/map/bing-maps/selecting-from-the-map/select-using-longitude-latitude/index.md>)