2011 census recorded a total of 1,534,148 private households in Croatia as well as 1,487 other residential communities such as retirement homes, convents etc. At the same time, there were 1,923,522 permanent housing units—houses and apartments. 2001 census recorded 1.66 million permanent housing units, including 196 thousand intermittently occupied and 42 thousand abandoned ones. Average size of a permanently used housing unit is . The intermittently used housing units include 182 thousand vacation houses and 8 thousand houses used during agricultural works. The same census also recorded 25 thousand housing units used for business purposes only. As of 2007, 71% of the households owned their own housing and had no mortgage or other loans to repay related to the housing, while further 9% were repaying loans for their housing. The households vary by type and include single households (13%), couples (15%), single parent households (4%), couples with children (27%) and extended family households (20%). There are approximately 500 homeless persons in Croatia, largely living in Zagreb.