Insurers paid out $28.2 million for claims from the downpour, which closed low-lying streets in Dunedin and led to evacuations from June 2-4, figures released to the Otago Daily Times by the Insurance Council of New Zealand reveal.
The Earthquake Commission has so far paid out $450,000 for claims and the Dunedin City Council earlier said its costs would total more than $2.75 million.
Ms Curran said those figures did not reflect the full impact of the flood on Dunedin's southern residents, More than 175mm of rain fell in the city on June 3 and 4 heavy rain fell continuously for 17 hours.
Ms Curran said while insurers had paid out money to landlords, many rental properties were still not repaired and home owners were waiting for work to be done.
''We have heard from one local carpet cleaning company that they are still pulling out carpets and that one of the companies had done over 1000 carpets.''
The flood had particularly affected many of Dunedin's most vulnerable residents, many of who did not have insurance, Ms Curran said.
''The $30million is quite substantial but it doesn't reflect those people whose contents were not insured. That's a hidden cost.
''The impact on the social service agencies around the city was considerable. They didn't receive any extra funding to deal with those issues.''
''There has been a lot of hidden costs in the city and people are still recovering.''
Some schools in Dunedin registered absentee figures of about 20% during the winter and schools in low-lying southern suburbs were hit particularly hard by flu-like illnesses.
''People are still doing it tough,'' Ms Curran said.
She said some landlords were not fixing their houses even though the money had been paid out.
''Four months on, there are people still not in their homes ... it gives you an indication of the depths of the impact of the floods in South Dunedin.''
An Insurance Council spokeswoman said more than 2400 claims from the Dunedin floods had cost insurers $28.2million.
About $18.7 million was for domestic claims, $8. 2million for commercial damage, $761,000 for motor vehicle claims, $565,000 for business interruption and $24,000 for other unspecified claims.
An EQC spokesman said 153 claims were lodged as a result of the flooding.
All had been assessed and 63 settled. Payouts totalled nearly $450,000.
''The remaining 90 claims are proceeding on time through the settlement process, with each being managed by individual claim managers.''
New Zealand Transport Agency southern media manager Frances Adank said about $40,000 was spent on the roading network.
Of that, $32,000 was spent in Dunedin, $3000 in Milton and Moneymore and $4000 at the Pomahaka River bridge in West Otago.
A Dunedin City Council spokeswoman said up-to-date figures on the cost of the flood could not be provided, but the council had earlier indicated its effects would cost more than $2.75 million to fix, the majority on roading.
Flood payouts
$28.2m paid out by insurers
$18.7m for domestic claims
$8.2m for commercial damage
$761,000 for vehicle claims
$565,000 for business interruption
$24,000 for other unspecified claims
