Some of the notable villages in Holmestrand include Eidsfoss, Eikeberg, Gullhaug, Hof, Klever, Sande, Selvik, and Sundbyfoss.

In 1942, an area of neighboring Botne Municipality (population: 148) was transferred into the growing town of Holmestrand.

Prior to 1964, the Holmestrand Municipality consisted of only the 0.63 square kilometres (0.24 sq mi) town of Holmestrand, and after the merger, the municipality was 84.25 square kilometres (32.53 sq mi) with a population of 6,612 residents.

The official blazon is "Gules, an eagle displayed argent holding in dexter an anchor Or and in sinister a rod of Aesculapius also Or and in an inescutcheon azure a frigate argent" (Norwegian: På rød bunn en sølv, flakt ørn som i høyre klo holder et gull anker og i venstre en gull æskulapstav.

The eagle has a tincture of argent which means it is commonly colored white, but if it is made out of metal, then silver is used.

The right claw of the eagle holds a golden anchor which symbolises that Holmestrand is a centuries-old maritime town.

The eagle holds in its left claw a golden rod of Asclepius, symbolizing the Greek god of medicine.

[12][13][14] The present coat of arms was approved for use starting on 1 January 2020, after a large municipal merger took place, greatly increasing the size of Holmestrand.

The official blazon is "Per fess wavy offset to base azure and argent, an oak leaf argent and three wavy lines azure" (Norwegian: I blått over en sølv skjoldfot avdelt med et enkelt bølgesnitt, et sølv opprett eikeblad uten bladstamme.

Below the line, the field has a tincture of argent which means it is commonly colored white, but if it is made out of metal, then silver is used.

There are several mountains located in northwestern Holmestrand, including Buaren, Grøntjernkollen, Lauvkollen, Skibergfjellet, and Vestfjellet (the highest point in all of Vestfold county).

The municipal council (Kommunestyre) of Holmestrand is made up of 35 representatives that are elected to four-year terms.

The mayors (Norwegian: ordfører) of Holmestrand:[39] The European route E18 highway passes through Vestfold county, following the coastline south from Oslo towards Southern Norway.