D-line is a commercial and urban residential area of Port Harcourt, Rivers State, Nigeria. Its geographical coordinates are 4ð48'8" North, 7ð0'10" East. The neighborhood is sometimes spelled "D/Line" and has a zipcode of 500261.
The Roman Catholic Diocese of Port Harcourt and the Methodist Church of Nigeria have their cathedrals situated in D-line.
D-line is located approximately 5 km (3 miles) away from the Port Harcourt NAF Base, and approximately 8 km (5 miles) south-west of Elelenwo.
There are elementary and secondary schools operating within the D-line boundaries:
Organizations in D-Line, range from law firms, NGO's to Boutique and a Tech Hub.