After coal was discovered at Udi, the Eastern Railway with station in the town was built to Port Harcourt between 1913 and 1916.

Over 63.70% of this amount, that is, ₦1,216,755,647.97 was realized as statutory revenue from Federal Accounts Allocation Committee (FAAC).

Total expenditure incurred during the year amounted to ₦2,038,246,642.26.This comprises ₦738,441,232.13 for Salary and ₦42,982,267.66 for Over Head; and N1,256,823,142.47 being Transfer Payments to Govt.

Isiala-Ngwa South receives significant rainfall, with an annual average of approximately 2,000 to 2,500 millimeters (78 to 98 inches).

The wet season generally runs from April to October, with peak rainfall occurring between June and September.

The dry season lasts from November to March, with December and January being the driest months.

In recent years, like many parts of Nigeria, Isiala-Ngwa South has experienced some effects of climate change, including more erratic rainfall patterns and increased frequency of extreme weather events.