Karu is a district in Abuja Municipal (or the city of Abuja, as some people prefer to call it). Abuja Municipal is one of the 6 Area Councils in the Federal Capital Territory (FCT).
The district contains several locations/streets that make use of the same postal or zip code.
Here are the areas in Karu and their postcodes:
| Location | Postcode |
| Jikoyi | 900110 |
| Karu Site (FHA) | 900110 |
| Karu Village | 900110 |