‹ BACK TO ALL 2015 RECS TABLES
Release date: February 2017
Revised date: May 2018
Number of housing units (million) | |||||||||
Year of construction | |||||||||
Total U.S.2 | Before 1950 | 1950 to 1959 | 1960 to 1969 | 1970 to 1979 | 1980 to 1989 | 1990 to 1999 | 2000 to 2009 | 2010 to 2015 | |
All homes | 118.2 | 20.8 | 12.6 | 12.8 | 18.3 | 16.0 | 16.8 | 17.0 | 3.8 |
Air-conditioning equipment | |||||||||
Use air-conditioning equipment | 102.8 | 17.0 | 10.8 | 10.7 | 15.9 | 14.0 | 15.0 | 15.9 | 3.5 |
Do not use air-conditioning equipment | 15.4 | 3.7 | 1.8 | 2.1 | 2.4 | 2.0 | 1.8 | 1.1 | 0.4 |
Type of air-conditioning equipment used (more than one may apply) | |||||||||
Use central air-conditioning equipment | 76.1 | 7.5 | 6.9 | 7.3 | 12.3 | 11.4 | 12.9 | 14.7 | 3.2 |
Without a heat pump | 55.4 | 6.3 | 5.5 | 5.6 | 9.1 | 7.8 | 8.8 | 10.1 | 2.2 |
With a heat pump | 20.7 | 1.2 | 1.3 | 1.6 | 3.2 | 3.6 | 4.1 | 4.5 | 1.0 |
Use individual air-conditioning units | 32.1 | 10.7 | 4.7 | 3.9 | 4.5 | 3.3 | 2.9 | 1.7 | 0.3 |
With 1 unit | 15.9 | 4.6 | 2.3 | 2.0 | 2.5 | 1.7 | 1.6 | 1.0 | 0.2 |
With 2 units | 9.6 | 3.6 | 1.3 | 1.1 | 1.4 | 1.0 | 0.6 | 0.5 | Q |
With 3 or more units | 6.6 | 2.5 | 1.2 | 0.8 | 0.6 | 0.6 | 0.7 | 0.3 | Q |
Do not use air-conditioning equipment | 15.4 | 3.7 | 1.8 | 2.1 | 2.4 | 2.0 | 1.8 | 1.1 | 0.4 |
Central air-conditioning equipment age | |||||||||
Less than 2 years old | 8.3 | 0.7 | 0.7 | 1.0 | 1.3 | 1.3 | 1.5 | 0.9 | 0.9 |
2 to 4 years old | 11.7 | 1.1 | 1.1 | 1.4 | 1.8 | 1.7 | 2.0 | 1.2 | 1.4 |
5 to 9 years old | 22.4 | 2.2 | 1.9 | 1.8 | 3.5 | 3.7 | 2.7 | 5.8 | 0.7 |
10 to 14 years old | 17.2 | 1.6 | 1.5 | 1.6 | 2.6 | 2.0 | 2.3 | 5.6 | 0.2 |
15 to 19 years old | 9.2 | 1.1 | 0.9 | 0.9 | 1.4 | 1.1 | 2.8 | 1.0 | Q |
20 or more years old | 7.3 | 0.8 | 0.8 | 0.7 | 1.6 | 1.7 | 1.7 | Q | N |
Do not use central air-conditioning equipment | 42.1 | 13.3 | 5.8 | 5.6 | 6.0 | 4.6 | 4.0 | 2.3 | 0.6 |
Have thermostat for central air-conditioning equipment | |||||||||
Yes | 74.7 | 7.3 | 6.7 | 7.1 | 12.0 | 11.3 | 12.6 | 14.4 | 3.2 |
Programmable thermostat | 47.9 | 4.2 | 4.1 | 4.4 | 7.6 | 7.2 | 8.6 | 9.5 | 2.4 |
Non-programmable thermostat | 26.8 | 3.1 | 2.6 | 2.7 | 4.4 | 4.1 | 4.1 | 4.9 | 0.8 |
No | 1.4 | Q | Q | Q | 0.2 | Q | 0.2 | 0.3 | Q |
Do not use central air-conditioning equipment | 42.1 | 13.3 | 5.8 | 5.6 | 6.0 | 4.6 | 4.0 | 2.3 | 0.6 |
Central air-conditioning equipment control | |||||||||
Set one temperature and leave it there most of the time | 34.0 | 3.5 | 3.6 | 3.6 | 6.0 | 4.8 | 5.4 | 5.8 | 1.3 |
Manually adjust the temperature at night or when no one is at home | 19.6 | 2.0 | 1.8 | 1.7 | 2.8 | 3.1 | 3.1 | 4.2 | 0.9 |
Program the thermostat to automatically adjust the temperature during the day and night at certain times | 13.7 | 1.3 | 0.9 | 1.1 | 2.1 | 2.0 | 2.7 | 2.8 | 0.7 |
Turn equipment on or off as needed | 8.8 | 0.7 | 0.5 | 0.9 | 1.4 | 1.5 | 1.6 | 1.9 | 0.3 |
Household does not have control over the equipment | Q | N | N | N | Q | N | N | Q | N |
Do not use central air-conditioning equipment | 42.1 | 13.3 | 5.8 | 5.6 | 6.0 | 4.6 | 4.0 | 2.3 | 0.6 |
Most-used individual air-conditioning unit age | |||||||||
Less than 2 years old | 6.4 | 2.0 | 1.2 | 0.6 | 0.8 | 0.5 | 0.7 | 0.4 | 0.2 |
2 to 4 years old | 10.0 | 3.2 | 1.5 | 1.1 | 1.5 | 1.1 | 1.0 | 0.6 | Q |
5 to 9 years old | 9.8 | 3.6 | 1.4 | 1.4 | 1.3 | 0.9 | 0.6 | 0.6 | Q |
10 to 14 years old | 3.7 | 1.3 | 0.4 | 0.6 | 0.5 | 0.6 | 0.2 | 0.2 | Q |
15 to 19 years old | 1.3 | 0.3 | Q | Q | 0.2 | Q | Q | Q | N |
20 or more years old | 1.1 | 0.3 | Q | Q | Q | Q | Q | Q | N |
Do not use individual air-conditioning units | 86.1 | 10.1 | 7.9 | 8.9 | 13.8 | 12.8 | 13.9 | 15.2 | 3.5 |
Most-used individual air-conditioning unit control | |||||||||
Set one temperature and leave it there most of the time | 9.8 | 3.6 | 1.6 | 0.9 | 1.3 | 1.0 | 0.9 | 0.5 | Q |
Manually adjust the temperature at night or when no one is at home | 5.8 | 1.9 | 0.8 | 0.7 | 0.8 | 0.7 | 0.5 | 0.4 | Q |
Program the thermostat to automatically adjust the temperature during the day and night at certain times | 1.5 | 0.4 | 0.3 | 0.3 | 0.3 | Q | Q | Q | Q |
Turn equipment on or off as needed | 14.8 | 4.8 | 2.0 | 2.0 | 2.1 | 1.5 | 1.4 | 0.9 | 0.1 |
Some other way | Q | N | Q | N | Q | Q | N | N | N |
Do not use individual air-conditioning units | 86.1 | 10.1 | 7.9 | 8.9 | 13.8 | 12.8 | 13.9 | 15.2 | 3.5 |
Summer indoor daytime temperature when someone is home | |||||||||
69 degrees or less | 19.9 | 4.9 | 2.4 | 2.2 | 3.2 | 2.2 | 2.1 | 2.3 | 0.6 |
70 degrees | 17.4 | 3.0 | 1.7 | 1.8 | 2.7 | 2.3 | 3.0 | 2.3 | 0.5 |
71 to 73 degrees | 20.5 | 3.2 | 2.0 | 2.2 | 3.4 | 2.8 | 3.0 | 3.3 | 0.7 |
74 to 76 degrees | 26.3 | 3.7 | 2.8 | 2.6 | 3.6 | 3.8 | 4.0 | 4.6 | 1.1 |
77 to 79 degrees | 13.0 | 1.3 | 1.1 | 1.2 | 2.0 | 2.3 | 2.1 | 2.6 | 0.4 |
80 degrees or more | 5.7 | 0.9 | 0.8 | 0.7 | 1.0 | 0.7 | 0.8 | 0.7 | Q |
Do not use air-conditioning equipment | 15.4 | 3.7 | 1.8 | 2.1 | 2.4 | 2.0 | 1.8 | 1.1 | 0.4 |
Summer indoor daytime temperature when no one is home | |||||||||
69 degrees or less | 14.0 | 3.2 | 1.8 | 1.6 | 2.3 | 1.6 | 1.6 | 1.5 | 0.4 |
70 degrees | 13.0 | 2.1 | 1.4 | 1.3 | 2.1 | 1.7 | 2.2 | 1.9 | 0.3 |
71 to 73 degrees | 14.5 | 2.3 | 1.4 | 1.4 | 2.3 | 1.9 | 2.3 | 2.4 | 0.5 |
74 to 76 degrees | 25.5 | 4.4 | 2.7 | 2.8 | 3.7 | 3.0 | 3.7 | 4.3 | 1.1 |
77 to 79 degrees | 15.9 | 1.8 | 1.6 | 1.8 | 2.5 | 2.7 | 2.2 | 2.9 | 0.4 |
80 degrees or more | 19.9 | 3.3 | 1.9 | 1.9 | 3.1 | 3.0 | 3.0 | 2.9 | 0.7 |
Do not use air-conditioning equipment | 15.4 | 3.7 | 1.8 | 2.1 | 2.4 | 2.0 | 1.8 | 1.1 | 0.4 |
Summer indoor temperature at night | |||||||||
69 degrees or less | 25.8 | 5.7 | 3.0 | 2.6 | 4.1 | 3.0 | 3.3 | 3.1 | 1.0 |
70 degrees | 20.0 | 3.4 | 2.2 | 2.2 | 3.0 | 2.6 | 2.9 | 3.0 | 0.6 |
71 to 73 degrees | 19.1 | 3.1 | 1.8 | 1.9 | 3.0 | 2.9 | 2.7 | 3.0 | 0.7 |
74 to 76 degrees | 23.3 | 3.1 | 2.2 | 2.5 | 3.7 | 3.3 | 3.7 | 4.0 | 0.7 |
77 to 79 degrees | 10.4 | 1.1 | 1.1 | 1.1 | 1.4 | 1.6 | 1.7 | 2.0 | 0.2 |
80 degrees or more | 4.2 | 0.6 | 0.5 | 0.3 | 0.7 | 0.5 | 0.7 | 0.6 | 0.2 |
Do not use air-conditioning equipment | 15.4 | 3.7 | 1.8 | 2.1 | 2.4 | 2.0 | 1.8 | 1.1 | 0.4 |
Air-conditioned basement | |||||||||
Yes | 14.2 | 1.9 | 1.9 | 1.7 | 2.0 | 1.6 | 2.4 | 2.2 | 0.4 |
No | 17.5 | 6.5 | 3.0 | 1.7 | 1.8 | 1.3 | 1.5 | 1.4 | 0.2 |
Not asked (air-conditioned homes with no basement) | 39.9 | 3.6 | 4.2 | 4.4 | 6.3 | 5.7 | 6.4 | 7.6 | 1.6 |
Not asked (un-air-conditioned homes, apartments, and mobile homes) | 46.7 | 8.7 | 3.5 | 5.0 | 8.2 | 7.4 | 6.6 | 5.8 | 1.5 |
Air-conditioned attic | |||||||||
Yes | 1.6 | 0.6 | 0.3 | Q | Q | Q | 0.2 | Q | Q |
No | 39.9 | 6.4 | 4.6 | 4.3 | 5.6 | 5.3 | 5.9 | 6.5 | 1.3 |
Not asked (air-conditioned homes with no attic) | 30.0 | 5.1 | 4.2 | 3.4 | 4.5 | 3.2 | 4.1 | 4.6 | 0.9 |
Not asked (un-air-conditioned homes, apartments, and mobile homes) | 46.7 | 8.7 | 3.5 | 5.0 | 8.2 | 7.4 | 6.6 | 5.8 | 1.5 |
Air-conditioned, attached garage | |||||||||
Yes | 1.0 | Q | Q | Q | 0.2 | 0.2 | Q | 0.2 | Q |
No | 41.1 | 2.4 | 3.0 | 4.3 | 6.5 | 5.9 | 7.8 | 9.1 | 2.0 |
Not asked (air-conditioned homes with no attached garage) | 29.4 | 9.6 | 5.9 | 3.5 | 3.4 | 2.6 | 2.3 | 1.9 | 0.3 |
Not asked (un-air-conditioned homes, apartments, and mobile homes) | 46.7 | 8.7 | 3.5 | 5.0 | 8.2 | 7.4 | 6.6 | 5.8 | 1.5 |
Dehumidifiers and usage | |||||||||
Have a dehumidifier | 16.7 | 3.7 | 2.3 | 2.0 | 2.5 | 1.9 | 2.1 | 1.8 | 0.3 |
Do not use | 0.4 | Q | Q | Q | Q | Q | Q | Q | N |
Used less than 4 months | 5.5 | 1.4 | 0.6 | 0.6 | 1.0 | 0.5 | 0.7 | 0.6 | Q |
Used 4 to 6 months | 6.5 | 1.3 | 1.1 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.2 |
Used 7 to 9 months | 2.0 | 0.3 | 0.2 | 0.4 | 0.4 | Q | 0.3 | Q | N |
Used 10 to 11 months | Q | Q | Q | N | Q | Q | Q | N | N |
Turned on all 12 months | 2.1 | 0.6 | Q | Q | 0.4 | 0.3 | 0.3 | 0.2 | Q |
Do not have a dehumidifier | 101.5 | 17.0 | 10.3 | 10.9 | 15.8 | 14.1 | 14.7 | 15.2 | 3.5 |
Use an evaporative or swamp cooler (asked only in arid areas) | |||||||||
Yes | 2.8 | 0.2 | 0.3 | 0.4 | 0.6 | 0.6 | 0.6 | 0.2 | N |
No | 54.8 | 5.2 | 5.0 | 5.5 | 8.7 | 9.0 | 8.9 | 10.2 | 2.4 |
Not asked | 60.6 | 15.4 | 7.4 | 7.0 | 9.0 | 6.5 | 7.3 | 6.5 | 1.4 |
Fan types used (more than one may apply) | |||||||||
Ceiling fans | 85.1 | 13.1 | 9.2 | 8.3 | 12.6 | 11.6 | 13.5 | 13.9 | 2.9 |
Floor, window, or table fans | 54.4 | 12.0 | 6.4 | 6.3 | 8.7 | 7.4 | 6.6 | 5.8 | 1.2 |
Whole house fans | 6.1 | 0.9 | 0.7 | 0.9 | 0.7 | 0.8 | 1.0 | 0.9 | 0.2 |
Attic fans | 8.7 | 1.1 | 1.3 | 1.1 | 1.5 | 1.5 | 1.4 | 0.8 | Q |
Number of ceiling fans used | |||||||||
0 | 33.1 | 7.7 | 3.4 | 4.5 | 5.8 | 4.5 | 3.3 | 3.1 | 0.9 |
1 | 21.3 | 4.0 | 2.5 | 2.5 | 3.7 | 3.0 | 2.6 | 2.3 | 0.6 |
2 | 18.8 | 3.2 | 2.2 | 1.7 | 2.7 | 2.4 | 3.3 | 2.7 | 0.6 |
3 | 15.2 | 2.9 | 1.7 | 1.4 | 2.1 | 1.9 | 2.2 | 2.4 | 0.6 |
4 or more | 29.8 | 2.9 | 2.8 | 2.7 | 4.1 | 4.2 | 5.5 | 6.5 | 1.1 |
1Housing characteristics data were collected between August 2015 and April 2016. Q = Data withheld because either the Relative Standard Error (RSE) was greater than 50% or fewer than 10 households responded. Notes: Because of rounding, data may not sum to totals. See RECS Terminology for definition of terms used in these tables. Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Forms EIA-457A and EIA-457C of the 2015 Residential Energy Consumption Survey. |