Büttelborn lies on the edge of the northern Hessisches Ried, the northeastern section of the Rhine rift, and even today is still partly rural.

Once the Katzenelnbogen male line had died out, Büttelborn passed to Hesse in 1479, of which it is still part today.

Foremost among their activities were grain farming and cattle raising and the woods north of the Mühlbach served as grazing lands.

The village lay between two yards, the older one near where the town hall now is, and the newer one at what is now the intersection of Bahnhofstrasse and Hauptstrasse, where there was also a small graveyard and St. Wendelin's Chapel.

Klein-Gerau had 150 inhabitants when in 1622 Field Marshal Peter Ernst II von Mansfeld marauded for a while over the Gerauer Land.

As of 1700, the population growth led to clearing north of the Mühlbach that was only brought to an end for good on the 20th century.

The building of the railway between Darmstadt and Mainz about 1858 improved the strained situation in the village considerably, affording access to jobs in surrounding towns, and raising many groups' incomes by improving distribution of harvested crops to the markets in neighbouring towns.

Moderately prosperous – for a full century from 1850 to 1950 – were the orchards established by the teacher Berz who lived in the village.

In the second half of the 20th century, the heretofore secondary industry of agriculture was coming ever more towards the fore, with this restructuring bringing Klein-Gerau to prominence as a rural residential community.

In the summer of 1996, Klein-Gerau celebrated its 750th anniversary of first documentary mention with, among other things, a great street festival around the renovated historic Town Hall.

In mid 1975, Worfelden's 750th anniversary of first documentary mention was celebrated, before the village had to give up its independence only one and a half years later.