Following the 2017 election, John Schmidt Andersen from Venstre had won a second term as mayor of Frederikssund Municipality

In this election, Venstre would end up winning 7 seats, 2 less than in 2017. Local party Fjordlandslisten would also win a seat, and could possibly become the deciding mandate, as both the traditional blocs had won 11 seats. In the end they opted for supporting Tina Tving Stauning from the Social Democrats to take over the mayor's position. With the Social Liberals, the Green Left and the Red–Green Alliance also supporting her, she would become the new mayor.

Electoral system For elections to Danish municipalities, a number varying from 9 to 31 are chosen to be elected to the municipal council. The seats are then allocated using the D'Hondt method and a closed list proportional representation. Frederikssund Municipality had 23 seats in 2021

Unlike in Danish General Elections, in elections to municipal councils, electoral alliances are allowed.

Electoral alliances

Electoral Alliance 1 Party Political alignmentASocial DemocratsCentre-leftPAnja Bisp PedersenLocal politics Electoral Alliance 2 Party Political alignmentFGreen LeftCentre-left to Left-wingØ Red–Green Alliance Left-wing to Far-Left Electoral Alliance 3 Party Political alignmentBSocial LiberalsCentre to Centre-leftCConservativesCentre-right Electoral Alliance 4 Party Political alignmentDNew Right Right-wing to Far-rightODanish People's Party Right-wing to Far-rightVVenstreCentre-right

Results by polling station H = Forenet Frederikssund N = Fjordlandslisten P = Anja Bisp Pedersen DivisionABCDFHNOPVØ % % % % % % % % % % % Frederikssund Midt32.93.58.54.48.50.46.66.10.524.44.2 Frederikssund Nord30.64.39.95.18.40.57.36.70.422.54.3 Frederikssund Syd28.35.29.44.59.20.46.56.00.326.73.5 Skibby27.42.09.15.46.80.211.97.40.623.06.3 Slangerup27.53.411.55.56.10.32.88.00.131.92.9 Jægerspris30.42.56.95.16.70.211.17.33.019.86.9

Results

Notes

References