Table HC6.2 Living Space Characteristics by Number of Household Members, 2005

Total...................................................................... 111.1 30.0 34.8 18.4 15.9 12.0

Floorspace (Square Feet)

Total Floorspace1

Fewer than 500............................................... 3.2 1.7 0.8 0.4 0.3 Q

500 to 999....................................................... 23.8 10.2 6.4 3.4 2.3 1.5

1,000 to 1,499................................................. 20.8 5.5 6.3 3.0 3.3 2.6

1,500 to 1,999................................................. 15.4 3.8 4.7 2.9 2.2 1.9

2,000 to 2,499................................................. 12.2 2.6 4.0 2.5 2.0 1.3

2,500 to 2,999................................................. 10.3 1.9 4.1 1.7 1.3 1.3

3,000 to 3,499................................................. 6.7 1.3 2.7 1.0 1.0 0.6

3,500 to 3,999................................................. 5.2 1.3 1.6 0.8 0.7 0.7

4,000 or More.................................................. 13.3 1.6 4.3 2.7 2.8 1.9

Heated Floorspace

None............................................................... 3.6 1.0 0.8 0.5 0.5 0.7

Fewer than 500............................................... 6.1 3.0 1.6 0.6 0.6 0.3

500 to 999....................................................... 27.7 11.6 8.3 3.6 2.7 1.6

1,000 to 1,499................................................. 26.0 7.0 8.0 4.6 3.7 2.7

1,500 to 1,999................................................. 17.6 3.5 5.5 3.3 2.8 2.4

2,000 to 2,499................................................. 10.7 1.5 4.0 2.0 2.0 1.2

2,500 to 2,999................................................. 7.7 1.0 2.7 1.6 1.1 1.4

3,000 to 3,499................................................. 3.8 0.7 1.4 0.7 0.6 0.4

3,500 to 3,999................................................. 2.6 0.4 0.7 0.4 0.7 0.4

4,000 or More.................................................. 5.2 0.5 1.7 1.1 1.1 0.8

Centrally Cooled Floorspace

None............................................................... 45.2 14.8 12.2 7.7 5.9 4.7

Fewer than 500............................................... 3.9 1.6 1.3 0.5 0.3 0.3

500 to 999....................................................... 15.0 5.6 5.0 2.2 1.4 0.9

1,000 to 1,499................................................. 15.6 3.8 5.9 2.1 2.2 1.6

1,500 to 1,999................................................. 11.1 2.0 3.5 2.1 2.0 1.5

2,000 to 2,499................................................. 7.0 0.8 2.6 1.2 1.3 1.0

2,500 to 2,999................................................. 5.2 0.7 1.8 1.0 0.8 0.9

3,000 to 3,499................................................. 2.7 0.4 1.1 0.6 0.5 Q

3,500 to 3,999................................................. 1.8 Q 0.4 0.3 0.6 0.3

4,000 or More.................................................. 3.5 Q 1.1 0.8 0.7 0.6

Rooms

Total Number of Rooms

(Excluding Bathrooms)

1 or 2.............................................................. 3.4 2.3 0.8 Q Q Q

3..................................................................... 8.6 5.1 2.1 0.8 0.4 Q

4..................................................................... 16.9 6.2 5.1 2.5 2.0 1.2

5..................................................................... 23.9 6.5 7.4 4.4 3.2 2.3

6..................................................................... 22.9 5.1 7.8 3.6 3.5 3.0

7..................................................................... 16.5 2.8 5.5 3.1 3.3 1.8

8..................................................................... 9.8 1.3 3.5 1.8 1.6 1.5

9 or More........................................................ 9.2 0.8 2.8 2.0 1.7 1.9

5 or More 

Members

 Million U.S. Housing Units

Housing 

Units 

(millions)

Number of Households With --

1

 Member

2

 Members

3

 Members

4

Living Space Characteristics Members

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC6.2 Living Space Characteristics by Number of Household Members, 2005

5 or More 

Members

 Million U.S. Housing Units

Housing 

Units 

(millions)

Number of Households With --

1

 Member

2

 Members

3

 Members

4

Living Space Characteristics Members

Bedrooms

None (Studio/Efficiency).................................. 1.9 1.4 0.4 Q Q Q

1..................................................................... 10.2 6.9 2.1 0.7 0.3 Q

2..................................................................... 28.7 9.7 9.9 4.6 2.9 1.6

3..................................................................... 47.5 9.6 16.1 8.7 8.0 5.1

4..................................................................... 18.4 2.3 5.2 3.5 3.7 3.7

5 or More........................................................ 4.3 Q 1.1 0.9 0.8 1.4

Other Rooms (Excluding Bathrooms)

None (Studio/Efficiency).................................. 1.9 1.4 0.4 Q Q Q

1..................................................................... 5.3 1.9 1.6 0.8 0.7 0.4

2..................................................................... 37.4 12.8 10.4 5.8 4.5 3.9

3..................................................................... 35.0 8.9 11.5 5.6 5.4 3.7

4..................................................................... 19.2 3.6 6.4 3.7 3.3 2.2

5 or More........................................................ 12.2 1.6 4.5 2.5 2.0 1.7

Full Bathrooms

None............................................................... 0.3 Q Q Q N N

1..................................................................... 54.9 19.9 15.9 8.4 6.2 4.6

2..................................................................... 45.9 9.0 15.5 7.7 7.8 5.8

3 or More........................................................ 9.9 1.0 3.4 2.1 1.9 1.6

Half Bathrooms

None............................................................... 79.4 24.6 24.5 12.4 10.2 7.8

1..................................................................... 29.7 5.2 9.7 5.6 5.4 3.9

2 or More........................................................ 2.0 0.3 0.7 0.4 Q 0.3

Basements

Basement in Single-Family Homes

and Apartments in 2-4 Unit Buildings

Yes................................................................. 35.5 7.5 11.9 6.2 5.8 4.0

No................................................................... 51.9 12.3 17.0 8.9 7.3 6.5

Not Asked (Mobile Homes or Apartment in

Buildings with 5 or More Units)........................ 23.7 10.3 5.9 3.3 2.7 1.5

Finished Basement

Yes.............................................................. 16.7 2.6 5.9 3.0 3.3 2.0

No............................................................... 18.7 4.9 6.1 3.2 2.6 2.0

No Basement.............................................. 51.9 12.3 17.0 8.9 7.3 6.5

Not Asked................................................... 23.7 10.3 5.9 3.3 2.7 1.5

Number of Finished Rooms

in Basement

1.................................................................. 8.1 1.4 3.0 1.2 1.6 0.9

2.................................................................. 3.8 0.6 1.3 0.6 0.8 0.5

3 or More..................................................... 4.8 0.6 1.6 1.1 0.9 0.6

None (Basement Unfinished)....................... 18.7 4.9 6.1 3.2 2.6 2.0

No Basement.............................................. 51.9 12.3 17.0 8.9 7.3 6.5

Not Asked................................................... 23.7 10.3 5.9 3.3 2.7 1.5

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC6.2 Living Space Characteristics by Number of Household Members, 2005

5 or More 

Members

 Million U.S. Housing Units

Housing 

Units 

(millions)

Number of Households With --

1

 Member

2

 Members

3

 Members

4

Living Space Characteristics Members

Heated Basement

Yes.............................................................. 20.7 3.9 7.4 3.6 3.4 2.4

All............................................................ 14.3 2.7 5.2 2.4 2.3 1.6

Part.......................................................... 6.4 1.2 2.2 1.2 1.1 0.8

None (Basement Not Heated)..................... 14.8 3.6 4.5 2.6 2.4 1.6

No Basement.............................................. 51.9 12.3 17.0 8.9 7.3 6.5

Not Asked................................................... 23.7 10.3 5.9 3.3 2.7 1.5

Air-Conditioned Basement

Yes.............................................................. 11.4 1.8 4.0 2.1 2.0 1.5

All............................................................ 8.4 1.3 3.0 1.6 1.4 1.1

Part.......................................................... 3.0 0.5 1.0 0.5 0.6 0.4

No (Basement Not Cooled)......................... 24.1 5.7 8.0 4.1 3.9 2.5

No Basement.............................................. 51.9 12.3 17.0 8.9 7.3 6.5

Not Asked................................................... 23.7 10.3 5.9 3.3 2.7 1.5

Attics

Attic in Single-Family Homes and

Apartments in 2-4 Unit Buildings

Yes................................................................. 22.8 4.6 7.7 4.1 3.9 2.5

No................................................................... 64.6 15.1 21.2 11.0 9.2 8.0

Not Asked (Mobile Homes or Apartment in

Buildings with 5 or More Units)........................ 23.7 10.3 5.9 3.3 2.7 1.5

Finished Attic

Yes.............................................................. 2.7 0.5 0.8 0.5 0.4 0.5

No............................................................... 20.1 4.1 6.9 3.7 3.5 2.0

No Attic....................................................... 64.6 15.1 21.2 11.0 9.2 8.0

Not Asked................................................... 23.7 10.3 5.9 3.3 2.7 1.5

Number of Finished Rooms in Attic

1.................................................................. 2.2 0.5 0.6 0.4 0.3 0.4

2 or More..................................................... 0.5 Q Q Q QQ

None (Attic Unfinished)................................ 20.1 4.1 6.9 3.7 3.5 2.0

No Attic....................................................... 64.6 15.1 21.2 11.0 9.2 8.0

Not Asked................................................... 23.7 10.3 5.9 3.3 2.7 1.5

Heated Attic

Yes.............................................................. 1.3 Q 0.3 0.3 0.3 0.2

All............................................................ 1.0 Q Q Q 0.2 Q

Part.......................................................... 0.3 N Q Q Q Q

No (Attic Not Heated).................................. 21.5 4.4 7.3 3.9 3.6 2.3

No Attic....................................................... 64.6 15.1 21.2 11.0 9.2 8.0

Not Asked................................................... 23.7 10.3 5.9 3.3 2.7 1.5

Air-Conditioned Attic

Yes.............................................................. 1.0 Q 0.3 Q Q Q

All............................................................ 0.7 Q Q Q QQ

Part.......................................................... 0.3 Q Q Q QQ

No (Attic Not Cooled).................................. 21.9 4.5 7.3 3.9 3.7 2.4

No Attic....................................................... 64.6 15.1 21.2 11.0 9.2 8.0

Not Asked................................................... 23.7 10.3 5.9 3.3 2.7 1.5

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC6.2 Living Space Characteristics by Number of Household Members, 2005

5 or More 

Members

 Million U.S. Housing Units

Housing 

Units 

(millions)

Number of Households With --

1

 Member

2

 Members

3

 Members

4

Living Space Characteristics Members

Garage/Carport

(Single-Family and Mobile Homes)

Yes..................................................................... 61.5 12.7 21.5 10.3 10.0 7.0

Attached......................................................... 41.8 7.2 15.0 7.5 7.2 5.0

1-Car Garage.............................................. 9.5 2.2 3.2 1.6 1.4 1.2

2-Car Garage.............................................. 28.4 4.7 10.2 5.2 5.2 3.1

3 or More Car Garage................................. 3.8 Q 1.6 0.7 0.7 0.6

Detached........................................................ 15.2 4.2 4.9 2.2 2.1 1.8

1-Car Garage.............................................. 6.1 2.0 1.7 0.9 0.6 0.8

2-Car Garage.............................................. 7.8 1.8 2.7 1.1 1.3 0.9

3 or More Car Garage................................. 1.4 0.3 0.5 Q Q Q

Carport (only).................................................. 4.7 1.4 1.7 0.6 0.7 0.3

No....................................................................... 25.1 6.9 7.1 4.4 3.3 3.5

Not Asked (All Apartments)................................ 24.5 10.5 6.3 3.7 2.5 1.5

 1 Excludes floorspace in unheated garages.

 Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were 

sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Glossary for definition of terms used in these tables.

 Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 2005 

Residential Energy Consumption Survey.

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables