[3] The blazon of the municipal coat of arms is Azure a Fleur-de-lis Argent and overall a Key Or in fess.

Of the rest of the land, 6.8% is settled (buildings or roads) and the remainder (0.2%) is non-productive (rivers or lakes).

There were 46 residents of the municipality who were employed in some capacity, of which females made up 58.7% of the workforce.

[6] As of 2008[update], there is 1 restaurant in the village and the hospitality industry in Oberhallau employs 2 people.

[6] The Stone Age gravesite at Überhürst is listed as a Swiss heritage site of national significance.