The elections were fought on the basis of the same constituency and region boundaries as the previous NAW elections in 2007.
The number of constituency candidates fell to 176 compared to 197 in 2007.
Thirteen parties or groups were represented in the regional lists together with 1 individual.
Labour won 28 out of the 40 constituency seats with a 42.3% share of the vote. The Conservatives were second with 6 seats (25.0% share of the vote) followed by Plaid Cymru (5 seats and 19.3% share of the vote) and the Liberal Democrats (1 seat and 10.6% share of the vote).
When the list seats were added, Labour had 30 out of 60 seats. The Conservatives had 14, Plaid Cymru had 11 and the Liberal Democrats had 5. No other party or Independent candidate won a seat.
Almost 2.29 million electors were eligible to vote at these elections: an increase of over 40,000 compared with 2007.
Over 5,500 electors (0.2% of the total) registered in the weeks leading up to the election under the so-called ’11 day rule’.
More than 950,000 votes were counted in both the constituency and regional level polls, making the overall turnout 41.8% -slightly down on the 2007 figure.
The proportion of ballot papers rejected at the count was very small – 0.82% of constituency ballots and 0.75% of list ballots.
Across Wales, 389,150 postal ballots were issued, representing 17.0% of the electorate. This is the largest proportion to date.
More than seven in 10 of postal ballots issued were returned. Of these, 4.7% (constituency) and 4.8% (regional list) were rejected because of failures relating to personal identifiers or non-inclusion of either a ballot or statement in the envelope.