Giffers has a population (as of December 2018) of 1,634.
 As of 2008, 3.8% of the population are resident foreign nationals.
 Over the last 10 years (2000–2010) the population has changed at a rate of 6.5%.
 Migration accounted for 2.1%, while births and deaths accounted for 4.9%.

Most of the population (as of 2000) speaks German (1,281 or 92.0%) as their first language, French is the second most common (95 or 6.8%) and English is the third (2 or 0.1%).
 There is 1 person who speaks Italian.

As of 2008, the population was 48.2% male and 51.8% female.
 The population was made up of 679 Swiss men (45.5% of the population) and 40 (2.7%) non-Swiss men.
 There were 739 Swiss women (49.6%) and 33 (2.2%) non-Swiss women.
 Of the population in the municipality, 502 or about 36.0% were born in Giffers and lived there in 2000.
 There were 574 or 41.2% who were born in the same canton, while 205 or 14.7% were born somewhere else in Switzerland, and 61 or 4.4% were born outside of Switzerland.

As of 2000, children and teenagers (0–19 years old) make up 25.8% of the population, while adults (20–64 years old) make up 60.9% and seniors (over 64 years old) make up 13.3%.

As of 2000, there were 645 people who were single and never married in the municipality.
 There were 618 married individuals, 65 widows or widowers and 65 individuals who are divorced.

As of 2000, there were 499 private households in the municipality, and an average of 2.5 persons per household.
 There were 123 households that consist of only one person and 25 households with five or more people.
 In 2000, a total of 486 apartments (92.7% of the total) were permanently occupied, while 28 apartments (5.3%) were seasonally occupied and 10 apartments (1.9%) were empty.
 As of 2009, the construction rate of new housing units was 5.6 new units per 1000 residents.
 The vacancy rate for the municipality, in 2010, was 0.84%.

The historical population is given in the following chart:
Giffers has a population (as of December 2018) of 1,634.  As of 2008, 3.8% of the population are resident foreign nationals.  Over the last 10 years (2000–2010) the population has changed at a rate of 6.5%.  Migration accounted for 2.1%, while births and deaths accounted for 4.9%.
Most of the population (as of 2000) speaks German (1,281 or 92.0%) as their first language, French is the second most common (95 or 6.8%) and English is the third (2 or 0.1%).  There is 1 person who speaks Italian.
As of 2008, the population was 48.2% male and 51.8% female.  The population was made up of 679 Swiss men (45.5% of the population) and 40 (2.7%) non-Swiss men.  There were 739 Swiss women (49.6%) and 33 (2.2%) non-Swiss women.  Of the population in the municipality, 502 or about 36.0% were born in Giffers and lived there in 2000.  There were 574 or 41.2% who were born in the same canton, while 205 or 14.7% were born somewhere else in Switzerland, and 61 or 4.4% were born outside of Switzerland.
As of 2000, children and teenagers (0–19 years old) make up 25.8% of the population, while adults (20–64 years old) make up 60.9% and seniors (over 64 years old) make up 13.3%.
As of 2000, there were 645 people who were single and never married in the municipality.  There were 618 married individuals, 65 widows or widowers and 65 individuals who are divorced.
As of 2000, there were 499 private households in the municipality, and an average of 2.5 persons per household.  There were 123 households that consist of only one person and 25 households with five or more people.  In 2000, a total of 486 apartments (92.7% of the total) were permanently occupied, while 28 apartments (5.3%) were seasonally occupied and 10 apartments (1.9%) were empty.  As of 2009, the construction rate of new housing units was 5.6 new units per 1000 residents.  The vacancy rate for the municipality, in 2010, was 0.84%.
The historical population is given in the following chart:
Giffers