Oberbalm has a population (as of December 2018) of 853.
As of 2010, 4.3% of the population are resident foreign nationals.
Over the last 10 years (2000-2010) the population has changed at a rate of 2.2%.
Migration accounted for -0.2%, while births and deaths accounted for 2.9%.

Most of the population (as of 2000) speaks German (826 or 98.9%) as their first language.
French, English and Italian all have one native speaker.

As of 2008, the population was 50.1% male and 49.9% female.
The population was made up of 415 Swiss men (48.0% of the population) and 18 (2.1%) non-Swiss men.
There were 413 Swiss women (47.7%) and 19 (2.2%) non-Swiss women.
Of the population in the municipality, 390 or about 46.7% were born in Oberbalm and lived there in 2000.
There were 332 or 39.8% who were born in the same canton, while 59 or 7.1% were born somewhere else in Switzerland, and 21 or 2.5% were born outside of Switzerland.

As of 2010, children and teenagers (0–19 years old) make up 20.6% of the population, while adults (20–64 years old) make up 62.5% and seniors (over 64 years old) make up 16.9%.

As of 2000, there were 374 people who were single and never married in the municipality.
There were 390 married individuals, 53 widows or widowers and 18 individuals who are divorced.

As of 2000, there were 102 households that consist of only one person and 40 households with five or more people.
In 2000, a total of 319 apartments (84.2% of the total) were permanently occupied, while 43 apartments (11.3%) were seasonally occupied and 17 apartments (4.5%) were empty.
As of 2010, the construction rate of new housing units was 1.2 new units per 1000 residents.

The historical population is given in the following chart:
Oberbalm has a population (as of December 2018) of 853. As of 2010, 4.3% of the population are resident foreign nationals. Over the last 10 years (2000-2010) the population has changed at a rate of 2.2%. Migration accounted for -0.2%, while births and deaths accounted for 2.9%.
Most of the population (as of 2000) speaks German (826 or 98.9%) as their first language. French, English and Italian all have one native speaker.
As of 2008, the population was 50.1% male and 49.9% female. The population was made up of 415 Swiss men (48.0% of the population) and 18 (2.1%) non-Swiss men. There were 413 Swiss women (47.7%) and 19 (2.2%) non-Swiss women. Of the population in the municipality, 390 or about 46.7% were born in Oberbalm and lived there in 2000. There were 332 or 39.8% who were born in the same canton, while 59 or 7.1% were born somewhere else in Switzerland, and 21 or 2.5% were born outside of Switzerland.
As of 2010, children and teenagers (0–19 years old) make up 20.6% of the population, while adults (20–64 years old) make up 62.5% and seniors (over 64 years old) make up 16.9%.
As of 2000, there were 374 people who were single and never married in the municipality. There were 390 married individuals, 53 widows or widowers and 18 individuals who are divorced.
As of 2000, there were 102 households that consist of only one person and 40 households with five or more people. In 2000, a total of 319 apartments (84.2% of the total) were permanently occupied, while 43 apartments (11.3%) were seasonally occupied and 17 apartments (4.5%) were empty. As of 2010, the construction rate of new housing units was 1.2 new units per 1000 residents.
The historical population is given in the following chart:
Oberbalm