diff --git a/bin/assign-to-areas.mjs b/bin/assign-to-areas.mjs
new file mode 100755
index 0000000..0a2b7f7
--- /dev/null
+++ b/bin/assign-to-areas.mjs
@@ -0,0 +1,23 @@
+#!/usr/bin/env node
+
+// Renvoyer une aire géographique pour une adresse
+
+// Usage:
+// node ./bin/assign-to-areas.mjs data/area-address-test.tsv
+
+import { fs } from "zx";
+
+const [, , inputFilePath] = process.argv;
+
+const areaAdresses = (await fs.readFile(inputFilePath, "utf-8"))
+    .split("\n");
+
+for (const areaAddress of areaAdresses) {
+    const [area, address] = areaAddress.split("\t");
+
+    if (await fs.pathExists(`areas/${area}`)) {
+        await fs.appendFile(`areas/${area}/addresses-test.txt`, `${address}\n`, "utf-8");
+        continue;
+    }
+    await fs.appendFile(`areas/GatheredLittleAreas/addresses-test.txt`, `${address}\n`, "utf-8");
+}