Largest political parties by prefecture in Santa Dominica

While there are key primary political parties nationally in the Republic of Santa Dominica, there are key differences when it comes to the local level, as certain geographic areas vote in different ways.

In Henderson, the country's most populous prefecture, the top two parties are traditionally the Conservative and Labour parties. In the most recent election, the Conservatives were decisively the most popular party winning 11 seats. While Labour and the Liberal Democrats won 6 and 5 seats respectively. Henderson is currently the only prefecture where the Left party runs candidates, as the prefecture includes most of the former-SDDR, where far-left politics is most common. They have 2 seats in the prefecture. Henderson is typically a swing prefecture, helping to sway the country one way or the other. They were decisive in giving Liberal Democratic Prime Minister Mari Sato a majority government in 2017 with her moderate politics.

In Santa Dominica prefecture, the most left-leaning part of the country, the largest party is by far the Labour Party, with 8 seats. The Tories hold 4 seats, making them the second-largest party. However, in the past, the Liberal Democrats have been in first or second place in the prefecture, so the rise of the Conservative Party in the prefecture could be a short-lived phenomenon or could be the result of more people moving into the capital area from other parts of the country, making the prefecture more moderate.

In North Shores, another swing prefecture, the most popular parties are Conservative and Labour, with the Tories currently on top. The Liberal Democrats have often had their greatest success here and is the home prefecture of former LibDem Prime Minister Mari Sato, who enjoyed massive popularity in this largely suburban area of the country.

In South Shores, the largest party is decisively the Conservative party, currently (2021) controlling all but one seat in the prefecture, which is in downtown San Angelo and held by Labour. Despite this, in terms of prefecture-wide vote share the second largest party is the AFSD (Alternative for Santa Dominica) party, a far-right party.

In the Maddison Territory, an unincorporated part of the country, the most populous parties are the AFSD and the Conservatives. It is here that the AFSD has found consistent support, and has been the only place that has elected an AFSD senator. Since 2021, however, the largest party has been the Tories.

In Saint-Charles Prefecture, both of their two parliamentary seats are held by the Conservative Party. However, the second-largest party in the prefecture is the Liberal Democrats, which have held a surprising base of support in this rural part of the country. This prefecture has historically been the worst for the Labour Party, who has never won a seat here.

In Saint John island, an oversees territory of the country, the most populous parties are CAG, a nationalist and pro-secession party, and the Labour Party.