In 2010, over 2,000 CCRCs existed in the United States with an estimated 640,000 residents. The popularity of CCRCs is increasing, as the number of older adults in such retirement communities has more than doubled during the last decade. The primary benefit of the CCRC model is that it allows people to age in one community even if they need additional healthcare services with time. Additionally, CCRCs embody a general sense of community and offer peace of mind for couples with the assurance that they will always be near each other, even if one spouse needs more care.