Lucens has a population (as of December 2018) of 4,204.
 As of 2008, 31.2% of the population are resident foreign nationals.
 Over the last 10 years (1999–2009 ) the population has changed at a rate of 12.2%.
 It has changed at a rate of 10.8% due to migration and at a rate of 1.5% due to births and deaths.

Most of the population (as of 2000) speaks French (1,822 or 82.0%), with Italian being second most common (111 or 5.0%) and Albanian being third (77 or 3.5%).
 There are 44 people who speak German and 4 people who speak Romansh.

Of the population in the municipality 575 or about 25.9% were born in Lucens and lived there in 2000.
 There were 565 or 25.4% who were born in the same canton, while 354 or 15.9% were born somewhere else in Switzerland, and 644 or 29.0% were born outside of Switzerland.

In 2008 there were 19 live births to Swiss citizens and 10 births to non-Swiss citizens, and in same time span there were 21 deaths of Swiss citizens and 1 non-Swiss citizen death.
 Ignoring immigration and emigration, the population of Swiss citizens decreased by 2 while the foreign population increased by 9.
 There were 3 Swiss men and 10 Swiss women who immigrated back to Switzerland.
 At the same time, there were 22 non-Swiss men and 25 non-Swiss women who immigrated from another country to Switzerland.
 The total Swiss population change in 2008 (from all sources, including moves across municipal borders) was an increase of 69 and the non-Swiss population decreased by 8 people.
 This represents a population growth rate of 2.7%.

The age distribution, as of 2009, in Lucens is; 256 children or 11.1% of the population are between 0 and 9 years old and 284 teenagers or 12.3% are between 10 and 19.
 Of the adult population, 284 people or 12.3% of the population are between 20 and 29 years old.
 334 people or 14.4% are between 30 and 39, 371 people or 16.0% are between 40 and 49, and 275 people or 11.9% are between 50 and 59.
 The senior population distribution is 252 people or 10.9% of the population are between 60 and 69 years old, 158 people or 6.8% are between 70 and 79, there are 83 people or 3.6% who are between 80 and 89, and there are 19 people or 0.8% who are 90 and older.

As of 2000, there were 880 people who were single and never married in the municipality.
 There were 1,073 married individuals, 148 widows or widowers and 120 individuals who are divorced.

As of 2000, there were 913 private households in the municipality, and an average of 2.3 persons per household.
 There were 312 households that consist of only one person and 69 households with five or more people.
 Out of a total of 939 households that answered this question, 33.2% were households made up of just one person and there were 7 adults who lived with their parents.
 Of the rest of the households, there are 244 married couples without children, 301 married couples with children There were 37 single parents with a child or children.
 There were 12 households that were made up of unrelated people and 26 households that were made up of some sort of institution or another collective housing.

In 2000 there were 217 single family homes (or 50.2% of the total) out of a total of 432 inhabited buildings.
 There were 109 multi-family buildings (25.2%), along with 58 multi-purpose buildings that were mostly used for housing (13.4%) and 48 other use buildings (commercial or industrial) that also had some housing (11.1%).
 Of the single family homes 46 were built before 1919, while 12 were built between 1990 and 2000.
 The most multi-family homes (42) were built before 1919 and the next most (18) were built between 1961 and 1970.
 There was 1 multi-family house built between 1996 and 2000.

In 2000 there were 1,078 apartments in the municipality.
 The most common apartment size was 3 rooms of which there were 328.
 There were 94 single room apartments and 198 apartments with five or more rooms.
 Of these apartments, a total of 886 apartments (82.2% of the total) were permanently occupied, while 124 apartments (11.5%) were seasonally occupied and 68 apartments (6.3%) we
Lucens has a population (as of December 2018) of 4,204.  As of 2008, 31.2% of the population are resident foreign nationals.  Over the last 10 years (1999–2009 ) the population has changed at a rate of 12.2%.  It has changed at a rate of 10.8% due to migration and at a rate of 1.5% due to births and deaths.
Most of the population (as of 2000) speaks French (1,822 or 82.0%), with Italian being second most common (111 or 5.0%) and Albanian being third (77 or 3.5%).  There are 44 people who speak German and 4 people who speak Romansh.
Of the population in the municipality 575 or about 25.9% were born in Lucens and lived there in 2000.  There were 565 or 25.4% who were born in the same canton, while 354 or 15.9% were born somewhere else in Switzerland, and 644 or 29.0% were born outside of Switzerland.
In 2008 there were 19 live births to Swiss citizens and 10 births to non-Swiss citizens, and in same time span there were 21 deaths of Swiss citizens and 1 non-Swiss citizen death.  Ignoring immigration and emigration, the population of Swiss citizens decreased by 2 while the foreign population increased by 9.  There were 3 Swiss men and 10 Swiss women who immigrated back to Switzerland.  At the same time, there were 22 non-Swiss men and 25 non-Swiss women who immigrated from another country to Switzerland.  The total Swiss population change in 2008 (from all sources, including moves across municipal borders) was an increase of 69 and the non-Swiss population decreased by 8 people.  This represents a population growth rate of 2.7%.
The age distribution, as of 2009, in Lucens is; 256 children or 11.1% of the population are between 0 and 9 years old and 284 teenagers or 12.3% are between 10 and 19.  Of the adult population, 284 people or 12.3% of the population are between 20 and 29 years old.  334 people or 14.4% are between 30 and 39, 371 people or 16.0% are between 40 and 49, and 275 people or 11.9% are between 50 and 59.  The senior population distribution is 252 people or 10.9% of the population are between 60 and 69 years old, 158 people or 6.8% are between 70 and 79, there are 83 people or 3.6% who are between 80 and 89, and there are 19 people or 0.8% who are 90 and older.
As of 2000, there were 880 people who were single and never married in the municipality.  There were 1,073 married individuals, 148 widows or widowers and 120 individuals who are divorced.
As of 2000, there were 913 private households in the municipality, and an average of 2.3 persons per household.  There were 312 households that consist of only one person and 69 households with five or more people.  Out of a total of 939 households that answered this question, 33.2% were households made up of just one person and there were 7 adults who lived with their parents.  Of the rest of the households, there are 244 married couples without children, 301 married couples with children There were 37 single parents with a child or children.  There were 12 households that were made up of unrelated people and 26 households that were made up of some sort of institution or another collective housing.
In 2000 there were 217 single family homes (or 50.2% of the total) out of a total of 432 inhabited buildings.  There were 109 multi-family buildings (25.2%), along with 58 multi-purpose buildings that were mostly used for housing (13.4%) and 48 other use buildings (commercial or industrial) that also had some housing (11.1%).  Of the single family homes 46 were built before 1919, while 12 were built between 1990 and 2000.  The most multi-family homes (42) were built before 1919 and the next most (18) were built between 1961 and 1970.  There was 1 multi-family house built between 1996 and 2000.
In 2000 there were 1,078 apartments in the municipality.  The most common apartment size was 3 rooms of which there were 328.  There were 94 single room apartments and 198 apartments with five or more rooms.  Of these apartments, a total of 886 apartments (82.2% of the total) were permanently occupied, while 124 apartments (11.5%) were seasonally occupied and 68 apartments (6.3%) we
Lucens