In a press conference on Sunday after the end of the electoral process of the first round of the contest, the minister said over 24.5 million voters out of about 57.9 million eligible people participated in the poll, IRNA reported.
He also said that 48% of the voters were female and 52% were male, according to Financial Tribune.
On the perceived delay in the announcement of the figures, the official said the Interior Ministry was bound by the law to wait for the completion of all legal procedures, including an endorsement by the Guardians Council, before publishing any official data on the outcome.
The final results indicate that principlists have won an overwhelming majority in the parliament and have swept all seats of the key Tehran constituency.
In several constituencies, the election has gone to a second round set for April 17. The first session of the new Majlis is scheduled to convene on May 28.
The other major political camp, namely the reformists, whose campaign was marred by mass disqualifications by the electoral watchdog, will only form a tiny minority in the conservative-controlled legislature.