Home > News > Article

Heerlen tops the Underworld Map again: what does this mean for the region? A guide to the Underworld Map

News ✍️ Jan de Vries 🕒 2026-03-16 23:51 🔥 Views: 2

You know that feeling? Walking through town at night and wondering what's really going on behind those tidy facades? Well, there's an image doing the rounds again that'll give you goosebumps: the Underworld Map. And guess who's sitting at the top again? That's right, our very own Heerlen.

Cover: Underworld Map with Heerlen at the top

What exactly is the Underworld Map?

For those who haven't seen it before: the Underworld Map is an initiative by a national news organisation that shows where most undermining crime occurs in the Netherlands. Think drug trafficking, money laundering, illegal cannabis farms, and other activities that can't stand the light of day. It's not an official police document, but a review of data from various sources, like police statistics, municipal investigations, and their own journalistic work. The map is colour-coded, from light yellow (low activity) to dark red (very high activity). And yes, you guessed it: Heerlen has been a dark red spot for years.

Why does Heerlen score so high?

I've lived here for twenty years, and it doesn't even shock me anymore. It's a combination of factors that makes this city so attractive to the criminal underworld. Let's break it down:

  • Location: Close to the German and Belgian borders. Perfect for drug smuggling and escape routes.
  • Infrastructure: Great road connections to the rest of the country and Europe.
  • Vacancy: Lots of empty buildings and sheds, ideal for drug labs or storage.
  • Social issues: Poverty and unemployment make people vulnerable to getting involved in crime on the side.

This cocktail of factors means Heerlen has had the dubious honour of topping the Underworld Map for years. It's no surprise then that the town is often called the drug capital of the Netherlands.

How to use the Underworld Map?

Maybe you're wondering: how to use the Underworld Map for yourself? For the average person, it's mainly a handy tool to see how your own neighbourhood or suburb scores. You can zoom in on your street and check if there are many reports of drug nuisance or suspicious situations. Real estate agents sometimes use it to check if an area is safe for potential buyers. Journalists and researchers also regularly dive into it for background on news about criminal activities.

A quick guide for beginners: search online for the most recent version of the Underworld Map and enter your postcode. You'll immediately see a score and an explanation. But be warned: it can be confronting. When I checked recently, my own street was showing orange. It definitely makes you think.

What do the locals in Heerlen think?

I was chatting with a neighbour at the coffee cart yesterday. "Yeah mate, that Underworld Map has been hanging over us for years. We're getting a bit over it. Feels like nothing helps. The council comes up with plans, the police do raids, but the next month Heerlen is back at number one." He's got a point. The stubbornness of the problem is frustrating. Still, I also see grassroots initiatives: neighbourhood watch groups, better lighting, more surveillance. Maybe, in time, it'll pay off.

The future of the Underworld Map

The Underworld Map isn't a static image. New figures are added every year, and the data keeps getting more detailed. It's a living document that keeps a finger on the pulse of the Dutch underworld. For Heerlen, that means we'll have to tough it out for a while longer. But who knows, maybe in a few years we won't be number one anymore. A guy can dream, right?

So, next time you're walking through Heerlen, you know: it's not just shopping and hitting the cafes. But hey, we're not giving up hope. We'll keep an eye on the map, hoping to see a bit more yellow and a bit less red one day.