Table HC10.1 Housing Unit Characteristics by U.S. Census Region, 2005

Total......................................................................... 111.1 20.6 25.6 40.7 24.2

Census Region and Division

Northeast.............................................................. 20.6 20.6 N N N

New England..................................................... 5.5 5.5 N N N

Middle Atlantic................................................... 15.1 15.1 N N N

Midwest................................................................. 25.6 N 25.6 N N

East North Central............................................. 17.7 N 17.7 N N

West North Central............................................ 7.9 N 7.9 N N

South.................................................................... 40.7 N N 40.7 N

South Atlantic.................................................... 21.7 N N 21.7 N

East South Central............................................ 6.9 N N 6.9 N

West South Central........................................... 12.1 N N 12.1 N

West..................................................................... 24.2 N N N 24.2

Mountain........................................................... 7.6 N N N 7.6

Pacific............................................................... 16.6 N N N 16.6

Urban/Rural Location (as Self-Reported)

City....................................................................... 47.1 6.9 9.7 17.8 12.8

Town..................................................................... 19.0 6.0 5.0 4.9 3.0

Suburbs................................................................ 22.7 4.4 5.7 7.6 4.9

Rural..................................................................... 22.3 3.2 5.2 10.4 3.5

Climate Zone1

Less than 2,000 CDD and--

Greater than 7,000 HDD.................................... 10.9 1.9 6.9 N 2.1

5,500 to 7,000 HDD........................................... 26.1 9.8 12.3 Q 3.1

4,000 to 5,499 HDD........................................... 27.3 8.9 6.4 8.5 3.5

Less than 4,000 HDD........................................ 24.0 N N 11.5 12.4

2000 CDD or More and--

Less than 4,000 HDD........................................ 22.8 N N 19.9 2.9

Type of Housing Unit

Single-Family Detached.................................... 72.1 11.2 18.7 27.2 15.0

Single-Family Attached...................................... 7.6 2.3 1.5 2.0 1.8

Apartments in 2-4 Unit Buildings....................... 7.8 2.5 1.5 1.9 1.8

Apartments in 5 or More Unit Buildings............. 16.7 4.2 3.1 5.8 3.6

Mobile Homes................................................... 6.9 0.4 0.8 3.8 2.0

Ownership of Housing Unit

Owned.................................................................. 78.1 13.4 19.4 28.9 16.4

Single-Family Detached.................................... 64.1 10.4 16.9 23.8 13.0

Single-Family Attached...................................... 4.2 1.4 1.0 0.8 1.0

Apartments in 2-4 Unit Buildings....................... 1.8 1.0 0.5 Q Q

Apartments in 5 or More Unit Buildings............. 2.3 0.3 0.4 0.9 0.7

Mobile Homes................................................... 5.7 0.4 0.7 3.1 1.6

Rented.................................................................. 33.0 7.2 6.2 11.8 7.8

Single-Family Detached.................................... 8.0 0.8 1.8 3.4 2.0

Single-Family Attached...................................... 3.4 0.9 0.5 1.1 0.8

Apartments in 2-4 Unit Buildings....................... 5.9 1.6 1.0 1.7 1.7

Apartments in 5 or More Unit Buildings............. 14.4 3.8 2.7 4.9 3.0

Mobile Homes................................................... 1.2 Q Q 0.7 0.3

 Million U.S. Housing Units

U.S. Census Region

Housing Unit Characteristics Northeast Midwest South West

Housing

Units 

(millions)

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC10.1 Housing Unit Characteristics by U.S. Census Region, 2005

 Million U.S. Housing Units

U.S. Census Region

Housing Unit Characteristics Northeast Midwest South West

Housing

Units 

(millions)

Year of Construction

1939 or Before...................................................... 14.7 5.6 4.1 2.8 2.2

1940 to 1949......................................................... 7.4 1.8 2.3 1.7 1.6

1950 to 1959......................................................... 12.5 3.3 3.2 3.5 2.5

1960 to 1969......................................................... 12.5 2.4 3.2 4.2 2.6

1970 to 1979......................................................... 18.9 2.7 4.0 7.1 5.0

1980 to 1989......................................................... 18.6 2.3 2.8 8.4 5.1

1990 to 1999......................................................... 17.3 1.5 4.1 8.3 3.4

2000 to 2005......................................................... 9.2 0.9 1.8 4.8 1.7

Number of Stories in

Single-Family Homes

1 Story.................................................................. 46.7 4.2 11.3 20.2 11.0

2 Stories................................................................ 28.0 7.8 7.4 8.2 4.6

3 or More Stories.................................................. 2.5 1.0 0.4 0.4 0.7

Split-level.............................................................. 1.9 0.2 1.0 Q 0.5

Other..................................................................... 0.5 QQQQ

Not Asked............................................................. 31.4 7.1 5.4 11.6 7.4

Number of Floors in Apartment

Buildings with 5 or More Units

1 or 2 Floors.......................................................... 8.2 1.5 1.2 2.8 2.6

3 or 4 Floors.......................................................... 6.0 1.5 1.5 2.0 0.9

5 to 10 Floors........................................................ 1.6 0.9 Q 0.5 Q

11 to 20 Floors...................................................... 0.6 QQQQ

More than 20 Floors.............................................. Q N Q Q N

Not Asked............................................................. 94.4 16.4 22.5 34.9 20.6

Major Outside Wall Construction

Siding (Aluminum, Vinyl, Steel)............................. 35.3 8.2 11.5 11.6 4.0

Brick...................................................................... 31.3 6.4 8.0 15.0 2.0

Wood.................................................................... 20.0 3.6 4.5 5.7 6.2

Stucco................................................................... 14.8 0.7 0.5 2.4 11.3

Concrete/Concrete Block...................................... 5.3 0.4 Q 4.4 0.3

Composition (Shingle)........................................... 1.9 0.7 0.3 0.7 Q

Stone.................................................................... 1.0 0.4 Q 0.5 Q

Other..................................................................... 1.5 Q 0.7 0.5 Q

Foundation/Basement of SingleFamily Units and Apartments in

2 to 4 Unit Buildings

(more than one may apply)

Basement.............................................................. 35.5 11.7 14.7 5.9 3.2

Crawlspace........................................................... 25.1 3.0 5.9 9.2 6.9

Concrete Slab....................................................... 40.2 3.9 6.6 18.2 11.5

Not Asked (Mobile Homes and

Apartments in Buildings

With 5 or More Units)........................................ 23.7 4.6 3.9 9.6 5.6

Fuels Used for Any Use

(more than one may apply)

Electricity.............................................................. 111.1 20.6 25.6 40.7 24.2

Natural Gas........................................................... 69.5 13.6 20.1 17.5 18.2

Wood.................................................................... 14.4 1.8 3.7 5.0 4.0

Fuel Oil................................................................. 8.4 6.5 0.8 0.7 0.4

LPG...................................................................... 12.6 2.0 3.0 5.2 2.5

Kerosene.............................................................. 1.7 0.5 0.3 0.8 Q

Solar..................................................................... 0.2 N Q N 0.2

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Table HC10.1 Housing Unit Characteristics by U.S. Census Region, 2005

 Million U.S. Housing Units

U.S. Census Region

Housing Unit Characteristics Northeast Midwest South West

Housing

Units 

(millions)

Main Heating Fuel

Natural Gas........................................................... 58.2 11.4 18.4 13.6 14.7

Electricity.............................................................. 33.7 1.6 3.5 22.1 6.5

Fuel Oil................................................................. 7.7 6.2 0.7 0.5 0.3

LPG...................................................................... 6.0 0.4 1.9 2.7 1.0

Wood.................................................................... 2.9 0.5 0.7 0.9 0.8

Kerosene.............................................................. 0.7 0.2 Q 0.4 Q

Solar..................................................................... Q N N N Q

Other..................................................................... QQQQQ

None..................................................................... 1.3 Q Q 0.4 0.7

Natural Gas Available

in Neighborhood

Yes....................................................................... 80.5 15.6 21.7 23.4 19.8

Actually Use Natural Gas.................................. 69.5 13.6 20.1 17.5 18.2

Do Not Use Natural Gas.................................... 11.1 2.0 1.6 5.9 1.7

No......................................................................... 30.6 5.0 3.9 17.4 4.4

 1. One of five climatically distinct areas, determined according to the 30-year average (1971-2000) of the annual heating and 

cooling degree-days. A household is assigned to a climate zone according to the 30-year average annual degree-days for an 

appropriate nearby weather station.

 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