Ayent has a population (as of December 2018) of 4,058.
As of 2008, 10.6% of the population are resident foreign nationals.
Over the last 10 years (1999–2009) the population has changed at a rate of 11.6%.
It has changed at a rate of 12.4% due to migration and at a rate of 0% due to births and deaths.

Most of the population (as of 2000) speaks French (2,808 or 93.6%) as their first language, German is the second most common (83 or 2.8%) and Portuguese is the third (41 or 1.4%).
There are 15 people who speak Italian and 1 person who speaks Romansh.

As of 2008, the gender distribution of the population was 49.7% male and 50.3% female.
The population was made up of 1,537 Swiss men (44.0% of the population) and 196 (5.6%) non-Swiss men.
There were 1,567 Swiss women (44.9%) and 190 (5.4%) non-Swiss women.
Of the population in the municipality 1,903 or about 63.4% were born in Ayent and lived there in 2000.
There were 433 or 14.4% who were born in the same canton, while 294 or 9.8% were born somewhere else in Switzerland, and 274 or 9.1% were born outside of Switzerland.

The age distribution of the population (as of 2000) is children and teenagers (0–19 years old) make up 20.9% of the population, while adults (20–64 years old) make up 60.5% and seniors (over 64 years old) make up 18.6%.

As of 2000, there were 1,130 people who were single and never married in the municipality.
There were 1,638 married individuals, 166 widows or widowers and 67 individuals who are divorced.

As of 2000, there were 1,210 private households in the municipality, and an average of 2.4 persons per household.
There were 318 households that consist of only one person and 77 households with five or more people.
Out of a total of 1,248 households that answered this question, 25.5% were households made up of just one person and there were 24 adults who lived with their parents.
Of the rest of the households, there are 374 married couples without children, 431 married couples with children There were 46 single parents with a child or children.
There were 17 households that were made up of unrelated people and 38 households that were made up of some sort of institution or another collective housing.

In 2000 there were 925 single family homes (or 70.1% of the total) out of a total of 1,320 inhabited buildings.
There were 294 multi-family buildings (22.3%), along with 65 multi-purpose buildings that were mostly used for housing (4.9%) and 36 other use buildings (commercial or industrial) that also had some housing (2.7%).

In 2000, a total of 1,153 apartments (39.0% of the total) were permanently occupied, while 1,028 apartments (34.8%) were seasonally occupied and 774 apartments (26.2%) were empty.
As of 2009, the construction rate of new housing units was 6.9 new units per 1000 residents.
The vacancy rate for the municipality, in 2010, was 0.09%.

The historical population is given in the following chart:
Ayent has a population (as of December 2018) of 4,058. As of 2008, 10.6% of the population are resident foreign nationals. Over the last 10 years (1999–2009) the population has changed at a rate of 11.6%. It has changed at a rate of 12.4% due to migration and at a rate of 0% due to births and deaths.
Most of the population (as of 2000) speaks French (2,808 or 93.6%) as their first language, German is the second most common (83 or 2.8%) and Portuguese is the third (41 or 1.4%). There are 15 people who speak Italian and 1 person who speaks Romansh.
As of 2008, the gender distribution of the population was 49.7% male and 50.3% female. The population was made up of 1,537 Swiss men (44.0% of the population) and 196 (5.6%) non-Swiss men. There were 1,567 Swiss women (44.9%) and 190 (5.4%) non-Swiss women. Of the population in the municipality 1,903 or about 63.4% were born in Ayent and lived there in 2000. There were 433 or 14.4% who were born in the same canton, while 294 or 9.8% were born somewhere else in Switzerland, and 274 or 9.1% were born outside of Switzerland.
The age distribution of the population (as of 2000) is children and teenagers (0–19 years old) make up 20.9% of the population, while adults (20–64 years old) make up 60.5% and seniors (over 64 years old) make up 18.6%.
As of 2000, there were 1,130 people who were single and never married in the municipality. There were 1,638 married individuals, 166 widows or widowers and 67 individuals who are divorced.
As of 2000, there were 1,210 private households in the municipality, and an average of 2.4 persons per household. There were 318 households that consist of only one person and 77 households with five or more people. Out of a total of 1,248 households that answered this question, 25.5% were households made up of just one person and there were 24 adults who lived with their parents. Of the rest of the households, there are 374 married couples without children, 431 married couples with children There were 46 single parents with a child or children. There were 17 households that were made up of unrelated people and 38 households that were made up of some sort of institution or another collective housing.
In 2000 there were 925 single family homes (or 70.1% of the total) out of a total of 1,320 inhabited buildings. There were 294 multi-family buildings (22.3%), along with 65 multi-purpose buildings that were mostly used for housing (4.9%) and 36 other use buildings (commercial or industrial) that also had some housing (2.7%).
In 2000, a total of 1,153 apartments (39.0% of the total) were permanently occupied, while 1,028 apartments (34.8%) were seasonally occupied and 774 apartments (26.2%) were empty. As of 2009, the construction rate of new housing units was 6.9 new units per 1000 residents. The vacancy rate for the municipality, in 2010, was 0.09%.
The historical population is given in the following chart:
Ayent