Some of the notable villages in the municipality include Lofthus, Utne, Vikebygd, Alsåker, Botnen, Eitrheim, Håra, Røldal, Seljestad, Skare, Tyssedal, Jondal, Herand, Kysnesstranda, and Torsnes.

The largest urban areas in Ullensvang are Odda, Kinsarvik, Jondal, and Lofthus.

National road 13 crosses the Hardangerfjorden via the Hardanger Bridge in the far northern part of the municipality.

The charge has a tincture of Or which means it is commonly colored yellow, but if it is made out of metal, then gold is used.

[10][11] A new coat of arms was granted in 2019 for use starting on 1 January 2020 after Odda and Jondal municipalities were merged with Ullensvang.

The official blazon for the new arms is "Azure, a bar argent between three fleur-de-lis of the same" (Norwegian: I blå ein sølv bjelke følgd av tre sølv liljer, to over og ei under bjelken).

On 1 January 1882, a small area of Ullensvang (population: 22) was transferred to the neighboring municipality of Vikør.

On 1 January 1965, the Åsgrenda area of Kvam Municipality (population: 61) was transferred to Ullensvang.

At that time, the administrative centre was moved from the village of Kinsarvik to the larger town of Odda.

[14] On 1 January 2022, the Ytre Bu area of Ullensvang (population: 24) was transferred to the neighboring Eidfjord Municipality.

The municipal council (Kommunestyre) of Ullensvang is made up of 33 representatives that are elected to four year terms.

Each May, a musical festival is held at Ullensvang Hotel (built in 1846), when musicians from all of Norway come to the village.

The famous composer Edvard Grieg spent many summers at Lofthus, and the festival is held in his honor.

Attractions in addition to the previous mentioned, are the medieval Ullensvang Church at Lofthus (built around 1250) and Kinsarvik Church (built around 1150), several waterfalls such as the Skrikjofossen, the flowering season in May, and museums at Aga, Utne, and Skredhaugen.