Spatial data : The spatial data represent a geographical space. They are characterised by the points, lines and the polygons. The point data represents positional characterstics of the some of the geographical features such as schools, hospitals, wells, villages, towns, etc. on the map.

Non-spatial data: The data describing the spatial data is called as non-spatial or attribute data. For example, if you have a map showing positional location of your school you can attach the information as the name of the school, number of students in each the class, available facilities like library labs, etc. In other words, you will be defining the attributes of the spatial data. Thus non-spatial data are also known as attribute data.