Population and Housing Censuses National results Main dwellings according to household size by useful surface Units: main dwellings ;Total (useful surface);Less than 30m2;Between 30 and 45m2;Between 46 and 60m2;Between 61 and 75m2;Between 76 and 90m2;Between 91 and 105m2;Between 106 and 120m2;Between 121 and 150m2;Between 151 and 180m2;More than 180m2; Total (household size);18,083,692;50,438;535,426;1,969,210;3,360,926;5,354,922;2,461,922;1,650,776;1,310,374;568,273;821,427; 1 person;4,193,319;28,710;271,792;720,571;907,303;1,136,721;468,658;274,951;199,139;77,432;108,042; 2 persons;5,441,840;13,008;157,243;640,403;1,076,481;1,589,670;732,681;482,921;371,927;155,153;222,353; 3 persons;3,916,574;4,688;60,599;337,958;706,662;1,238,372;571,505;382,073;300,603;132,077;182,037; 4 persons;3,353,076;2,928;31,650;195,273;504,892;1,068,398;516,636;375,083;318,013;142,015;198,188; 5 persons;857,861;799;9,707;53,197;118,276;238,745;126,481;101,074;89,935;44,532;75,114; 6 or more persons;321,022;305;4,434;21,808;47,311;83,015;45,962;34,673;30,757;17,064;35,693; Notes: Source: National Statistics Institute