represents a population growth rate of 0.6%. The age distribution, , in Muttenz is; 995 children or 5.7% of the population are between 0 and 6 years old and 2,283 teenagers or 13.2% are between 7 and 19. Of the adult population, 2,030 people or 11.7% of the population are between 20 and 29 years old. 1,997 people or 11.5% are between 30 and 39, 2,756 people or 15.9% are between 40 and 49, and 3,506 people or 20.2% are between 50 and 64. The senior population distribution is 2,676 people or 15.4% of the population are between 65 and 79 years old and there are 1,087 people or 6.3% who are over 80. , there were 6,189 people who were single and never married in the municipality. There were 8,470 married individuals, 1,099 widows or widowers and 896 individuals who are divorced. , there were 7,340 private households in the municipality, and an average of 2.2 persons per household. There were 2,440 households that consist of only one person and 360 households with five or more people. Out of a total of 7,440 households that answered this question, 32.8% were households made up of just one person and 42 were adults who lived with their parents. Of the rest of the households, there are 2,368 married couples without children, 2,045 married couples with children There were 351 single parents with a child or children. There were 94 households that were made up unrelated people and 100 households that were made some sort of institution or another collective housing. there were 2,364 single-family homes (or 68.5% of the total) out of a total of 3,453 inhabited buildings. There were 676 multi-family buildings (19.6%), along with 257 multi-purpose buildings that were mostly used for housing (7.4%) and 156 other use buildings (commercial or industrial) that also had some housing (4.5%). Of the single-family homes 105 were built before 1919, while 244 were built between 1990 and 2000. The greatest number of single-family homes (658) were built between 1946 and 1960. there were 7,768 apartments in the municipality. The most common apartment size was 3 rooms of which there were 2,395. There were 267 single-room apartments and 2,041 apartments with five or more rooms. Of these apartments, a total of 7,219 apartments (92.9% of the total) were permanently occupied, while 378 apartments (4.9%) were seasonally occupied and 171 apartments (2.2%) were empty.