Saas-Fee has a population (as of December 2018) of 1,564.
As of 2008, 28.5% of the population are resident foreign nationals.
Over the last 10 years (2000–2010) the population has changed at a rate of 3.4%.
It has changed at a rate of 0.5% due to migration and at a rate of 6.3% due to births and deaths.

Most of the population (as of 2000) speaks German (1,243 or 85.5%) as their first language.

The German dialect spoken is called Walser German and is partly unintelligible to speakers of Standard German.

Serbo-Croatian is the second most common (98 or 6.7%) and Portuguese is the third (47 or 3.2%).
There are 16 people who speak French, 12 people who speak Italian and 2 people who speak Romansh.

Of the population in the municipality, 745 or about 51.2% were born in Saas-Fee and lived there in 2000.
There were 200 or 13.8% who were born in the same canton, while 207 or 14.2% were born somewhere else in Switzerland, and 265 or 18.2% were born outside of Switzerland.

As of 2000, children and teenagers (0–19 years old) make up 23.6% of the population, while adults (20–64 years old) make up 64.6% and seniors (over 64 years old) make up 11.8%.

As of 2000, there were 648 people who were single and never married in the municipality.
There were 717 married individuals, 69 widows or widowers and 20 individuals who are divorced.

As of 2000, there were 625 private households in the municipality, and an average of 2.2 persons per household.
There were 243 households that consist of only one person and 34 households with five or more people.
In 2000, a total of 604 apartments (39.4% of the total) were permanently occupied, while 864 apartments (56.4%) were seasonally occupied and 64 apartments (4.2%) were empty.
As of 2009, the construction rate of new housing units was 12.2 new units per 1000 residents.
The vacancy rate for the municipality, in 2010, was 3.83%.

The historical population is given in the following chart:
Saas-Fee has a population (as of December 2018) of 1,564. As of 2008, 28.5% of the population are resident foreign nationals. Over the last 10 years (2000–2010) the population has changed at a rate of 3.4%. It has changed at a rate of 0.5% due to migration and at a rate of 6.3% due to births and deaths.
Most of the population (as of 2000) speaks German (1,243 or 85.5%) as their first language.
The German dialect spoken is called Walser German and is partly unintelligible to speakers of Standard German.
Serbo-Croatian is the second most common (98 or 6.7%) and Portuguese is the third (47 or 3.2%). There are 16 people who speak French, 12 people who speak Italian and 2 people who speak Romansh.
Of the population in the municipality, 745 or about 51.2% were born in Saas-Fee and lived there in 2000. There were 200 or 13.8% who were born in the same canton, while 207 or 14.2% were born somewhere else in Switzerland, and 265 or 18.2% were born outside of Switzerland.
As of 2000, children and teenagers (0–19 years old) make up 23.6% of the population, while adults (20–64 years old) make up 64.6% and seniors (over 64 years old) make up 11.8%.
As of 2000, there were 648 people who were single and never married in the municipality. There were 717 married individuals, 69 widows or widowers and 20 individuals who are divorced.
As of 2000, there were 625 private households in the municipality, and an average of 2.2 persons per household. There were 243 households that consist of only one person and 34 households with five or more people. In 2000, a total of 604 apartments (39.4% of the total) were permanently occupied, while 864 apartments (56.4%) were seasonally occupied and 64 apartments (4.2%) were empty. As of 2009, the construction rate of new housing units was 12.2 new units per 1000 residents. The vacancy rate for the municipality, in 2010, was 3.83%.
The historical population is given in the following chart:
Saas-Fee