How to Get City, Postal Code, Address from Latitude and Longitude

In many applications, you don’t start with an address — you start with coordinates. A user clicks on a map, shares their GPS location, or your system receives latitude and longitude from a device. But raw coordinates like 40.748817, -73.985428 aren’t very useful on their own. Most applications need human-readable data: a city name, a postal code, or a full address. This is where reverse geocoding comes in. In this article, we’ll look at how to convert latitude and longitude into structured address data — including city, postal code, and formatted address — and, more importantly, what developers should be aware of when working with real-world location data. To make things more practical, we’ll also use a simple interactive demo where you can click on a map and instantly get the corresponding address details: CodePen Live Demo Coordinates vs Address: Two Ways to Describe a Location Latitude and longitude coordinates describe an exact point on Earth using a global grid system. latitude de