Bangladesh : Effects of the 2004 Floods (July to September 2004)
Demographic
Over 800 people killed. 7 million families affected. 35 million people affected. 900,000 houses destroyed. 2 million people in temporary shelters. 100,000 people displaced from the capital city Dhaka. About 60% of Bangladesh is under water, and millions are homeless.
Social Effects
The UN Country Team (UNCT) has identified urgent needs in the sectors of food, agriculture, health, nutrition, water, sanitation, family  shelter, education, protection, economic recovery and infrastructure, and coordination and information management over the next six months.
20 million families needed emergency relief. Infrastructure blockages meant relief could not get to remoter rural areas. International Aid essential Bangladesh could not cope alone. People needed emergency food supplies.
With sanitation disrupted sewage contaminated fresh water supplies. Disease outbreaks occurred in the aftermath of the flooding. In Dhaka a relief centre received 1000 patients a day suffering from water-borne diseases like diarrhea, cholera, typhoid and scabies which were spreading rapidly.
1225 Schools were destroyed. Another 25000 were closed with 5000 used as emergency shelters for homeless people.
Economic Effects
It estimates the damage so far at £140 million. Nearly 500,000 tonnes of rice has been ruined in the fields.
More than 2,000,000 acres of agricultural land have been submerged and countless crops ruined.
Damage costs are higher in urban areas like Dhaka – with damaged   shops and factories having high repair bills.  Damage is put at $7bn.
Rescue attempts and relief efforts cost millions which the country can ill afford as it is one of the world's 10 poorest nations..
The combined losses to assets and output amounted to at least $2.3 billion or 3.9% of gross domestic product.
with heavy losses to agricultural and industrial output
Floods are costing the garments sector around $3m a day - this is one of the key industries in cities like Dhaka.
The garment factories directly employ two million people and garments account for nearly 80% of all export earnings.
GeogOnline '06