The official results have been declared with the two main parties FAST and HRPP tied at 25 seats.
The final round of counting ended on Friday evening, and the Electoral Commissioner then presented the results to the Head of State, who declared the tally official.
RNZ Pacific correspondent in Apia, Autagavaia Tipi Autagavaia, said the two-way split shows a major shift in voting tendencies.
He said the ruling HRPP's stronghold on Savai'i has been diminished with FAST winning most of the seats there.
