Of the 42 areas, 19 (representing 48% of the electorate) have had the SPD topping the poll in each of the last three elections. They form a Western and an Eastern cluster:
Bahnhofs/Gutleutviertel, Gallusviertel, Bockenheim, Griesheim, Nied, Höchst, Rödelheim, Hausen, Praunheim, Ginnheim, Heddernheim, Niederursel to the West; and Nordend Ost, Bornheim, Ostend, Riederwald, Fechenheim, Eckenheim, and Bonames/Frankfurter Berg to the East.
14 (representing just 28% of the electorate) have had the CDU topping the poll throughout, situated on the fringes and along that central axis between the SPD areas: Altstadt, Westend Süd, Westend Nord, Dornbusch, Eschersheim; Kalbach/Riedberg, Nieder-Eschbach, Nieder-Erlenbach, Harheim; Seckbach, Bergen-Enkheim; Sachsenhausen Süd; Sossenheim, Unterliederbach
9 (representing 24% of the electorate) have had changes of heart.
Zeilsheim voted SPD in 98, but CDU in 2002 and 2005.
Oberrad, Niederrad and Schwanheim also voted SPD in 98 and CDU in 02, but Oberrad and Niederrad returned to the SPD camp now, while Schwanheim has the two exactly tied. (
And the Greens exactly one vote above the FDP!
)
Nordend West, Sachsenhausen Nord, and rather incongruously, Sindlingen voted SPD in 98 and 02, but had the CDU ahead in 05.
Innenstadt had the CDU ahead in 98, the SPD in 02, but now the CDU again.
Preungesheim/Berkersheim provided a real shocker for me though. SPD ahead out there for the third time as far as my stats go, which is to 1978, in
any election. The other two are the 1980 Bundestag and 1989 European elections. They've been building a lot out there recently, which has obviously affected the result.