Owing to its geographical location, Niedernberg has since yore had to deal repeatedly with wintertime floods in which, in particular, land near the Main has been involved.

Since this especially great danger from rising floods came about from icejams, in 1559, for protection, a cutwater was built at the southeast end of the fortifications, which, however, did not work as had been hoped.

The highest ever flood reached Niedernberg in February 1784 during spring runoff as the Main flowed almost 10 m higher than normal through the valley.

The nördliche Neubaugebiet (“Northern New Building Area”) offers many Niedernberg dwellers a place for living and playing.

Niedernberg's beginnings go back to one such castrum, built between 83 and 150, at the so-called “Wet Limes”, which stood as the Empire's eastern border.

Niedernberg was the post of a 300-strong cohort, Cohors I Ligurum et Hispanorum, which drew its recruits from northern Italy and Spain.

Interesting finds such as the “Marcellus Stone” or a burying ground discovered in 1963 have yielded information about the lives of the Romans stationed in Niedernberg.

In 1964, during building work on Hauptstraße, a bronze fountain mask was unearthed, today the only original such thing north of the Alps.

It was then that “Diemar von Niderenburc” bequeathed half a Hube of land from his holdings at Pfungstadt to the Lorsch Abbey on the Bergstraße for the upkeep of its daughter monastery, Steinbach, in the Odenwald.

As early as 1340 the Niedernberg Chapel, out of which it is generally believed grew today's parish church, Saint Cyriacus's, was conceived with small bequests.

Many citizens left their homeland in the 19th century because of limited living space, various bad harvests and social upheavals and emigrated to the United States.

Only towards the end of the century, when industrialized men's outerwear manufacture took hold in Aschaffenburg and the surrounding area was there a certain upswing in the level of wealth.

This led to one episode of the WDR series producing “the story” under the name Bankgeheimnisse (“Bank Secrets”), which is still being broadcast often on German television today.

Since the 2008 election, which saw a voter turnout of 56.97%,[4] the 16-member municipal council has been made up of the following political parties, with seats apportioned as shown: The Chief Mayor (Erster Bürgermeister) has been since 2000 Jürgen Reinhard (CSU).

In the 12 March 2006 mayoral election, Jürgen Reinhard was confirmed in office as the only candidate on the ballot with 97.53 of all valid votes, and with a voter turnout of 46.54%.

Since 1988, the theatrical group Die Blechkatzen (literally, “The Sheet Metal Cats”) perform each autumn a newly rehearsed play.

Audiences’ exceedingly positive reactions have led today to the group's performing several weekends in a row before a sold-out house each time, and even to engagements outside Niedernberg.

Nevertheless, the historical society has for several years been planning to establish a museum about Niedernberg's and the surrounding area's history in the sandstone school.

For lack of new blood, there was an attempt at branching out with a new, younger choir, “Via Nova”, with a repertoire of generally modern, often English-language songs.

The Niedernberg volunteer fire brigade’s musical corps, which has existed since 1957, today counts more than 70 active members, among whom are a great many youths.

In 2005, the multipurpose hall was thoroughly renovated, as structural shortcomings, in part dire, in the architecture once considered ultramodern led to, among other things, water leaking in and roof construction that was no longer safe.

The intention to ensure a mutual water supply with the neighbouring municipalities was never realized owing to the outbreak of the Second World War.

When in 1954 the first cases of typhus came to light and the health office, after doing tests, had to shut twelve of the thirteen drinking-water wells down, and also at the same time, privately built supply facilities were affected, something needed to be done quickly.

The watertower's height of 44 m was necessary given that local conditions, as in the neighbouring municipalities, precluded using high-level tanks to get the needed water pressure.

The Niedernberg watertower has a diameter throughout its height of 10 m. The two watertanks, made of watertight reinforced concrete, hold 250 000 L and provide a water pressure of 3.5 at in the waterpipe network.

The bridge has a span between supports of 150 m and is distinguished by its slanted, crossing hangers, a seldom used construction form in Germany.

Widespread particular recognition has been earned by the restaurant Blecherne Katz right near the Town Hall, the nearby wine parlour Zum Wagner and the Seehotel in its quiet location, and with its overnight accommodations.

The biggest employer in Niedernberg, with roughly 160 workers, is the firm ABI, in existence since 1974, a market leader in the field of special underground construction equipment.

Furthermore, the Gries Deco Company (which owns a department store chain called Das Depot) has its head office here as well as a branch.

Earlier generations in Niedernberg customarily said, instead of the standard German habe ich (“have I”), the local form hohn isch, leading those in neighbouring places to give them the nickname “Honisch”.