Total.............................................. 111.1 86.6 2,720 1,970 1,310 1,941 1,475 821 1,059 944 554

Census Region and Division

Northeast.................................... 20.6 13.9 3,224 2,173 836 2,219 1,619 583 903 830 Q

New England.......................... 5.5 3.6 3,365 2,154 313 2,634 1,826 Q 951 940 Q

Middle Atlantic........................ 15.1 10.3 3,167 2,181 1,049 2,188 1,603 582 Q Q Q

Midwest...................................... 25.6 21.0 2,823 2,239 1,624 2,356 1,669 1,336 1,081 961 778

East North Central.................. 17.7 14.5 2,864 2,217 1,490 2,514 1,715 1,408 907 839 553

West North Central................. 7.9 6.4 2,729 2,289 1,924 1,806 1,510 1,085 1,299 1,113 1,059

South.......................................... 40.7 33.0 2,707 1,849 1,563 1,605 1,350 954 1,064 970 685

South Atlantic......................... 21.7 16.8 2,945 1,996 1,695 1,573 1,359 909 1,044 955 733

East South Central.................. 6.9 6.2 2,490 1,731 1,432 1,414 1,272 921 1,082 1,012 737

West South Central................ 12.1 10.0 2,465 1,690 1,434 1,820 1,358 Q 1,087 968 566

West........................................... 24.2 18.8 2,242 1,705 816 1,609 1,270 550 1,074 913 280

Mountain................................. 7.6 6.6 2,308 1,931 977 2,123 1,767 890 1,097 944 215

Pacific..................................... 16.6 12.2 2,209 1,591 735 1,328 998 364 1,054 885 339

Urban/Rural Location (Self-Reported)

City............................................. 47.1 30.8 2,395 1,679 1,133 1,878 1,401 716 960 786 401

Town.......................................... 19.0 14.9 2,634 1,880 1,124 2,081 1,430 806 1,025 948 558

Suburbs...................................... 22.7 19.2 3,160 2,320 1,740 1,908 1,629 1,026 1,038 980 630

Rural.......................................... 22.3 21.7 2,805 2,098 1,276 Q Q Q 1,118 1,016 616

Climate Zone2

Less than 2,000 CDD and--

Greater than 7,000 HDD......... 10.9 9.6 2,908 2,351 1,139 2,392 1,880 961 1,191 1,106 Q

5,500 to 7,000 HDD................ 26.1 19.8 2,948 2,114 1,135 2,424 1,613 955 1,011 956 303

4,000 to 5,499 HDD................ 27.3 20.2 2,879 2,195 1,513 1,898 1,574 808 1,085 1,012 560

Less than 4,000 HDD.............. 24.0 18.9 2,506 1,689 1,187 1,318 1,049 486 986 851 575

2000 CDD or More and--

Less than 4,000 HDD.............. 22.8 18.2 2,425 1,662 1,495 1,583 1,212 1,072 1,092 923 745

Ownership of Housing Unit

Owned........................................ 78.1 74.0 2,813 2,039 1,392 2,400 1,837 1,094 1,099 990 593

Rented........................................ 33.0 12.6 1,983 1,419 661 1,383 1,037 488 866 722 367

Year of Construction

Before 1940................................ 14.7 10.9 2,855 1,878 663 2,244 1,523 QQQQ

1940 to 1949.............................. 7.4 6.0 2,297 1,578 698 2,157 1,694 Q N N N

1950 to 1959.............................. 12.5 10.9 2,260 1,582 885 1,947 1,411 QQQQ

1960 to 1969.............................. 12.5 9.5 2,399 1,756 1,139 1,826 1,325 Q 760 542 Q

1970 to 1979.............................. 18.9 13.7 2,593 1,889 1,280 1,532 1,181 822 948 809 355

1980 to 1989.............................. 18.6 13.7 2,731 2,052 1,569 1,958 1,604 1,012 1,008 933 494

1990 to 1999.............................. 17.3 14.3 3,140 2,408 1,925 1,943 1,559 1,187 1,232 1,143 837

2000 to 2005.............................. 9.2 7.6 3,440 2,542 2,233 2,213 1,575 1,365 1,425 1,336 1,120

Total1 Total1

Table HC1.1.3 Housing Unit Characteristics by Average Floorspace--

 Single-Family Housing Units and Mobile Homes, 2005

Single-Family Detached Single-Family Attached Mobile Homes

Housing Unit Characteristics Total Heated Heated Cooled 1 Heated Cooled

 Housing 

Units 

(millions)

Average Square Feet per Housing Unit--

Single-Family and Mobile Homes SingleFamily

and

Mobile

Homes

(millions) Cooled

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Total1 Total1

Table HC1.1.3 Housing Unit Characteristics by Average Floorspace--

 Single-Family Housing Units and Mobile Homes, 2005

Single-Family Detached Single-Family Attached Mobile Homes

Housing Unit Characteristics Total Heated Heated Cooled 1 Heated Cooled

 Housing 

Units 

(millions)

Average Square Feet per Housing Unit--

Single-Family and Mobile Homes SingleFamily

and

Mobile

Homes

(millions) Cooled

Number of Stories

Single-Family Homes

1 Story........................................ 46.7 46.7 2,226 1,552 1,085 1,382 987 525 N N N

2 Stories..................................... 28.0 28.0 3,452 2,552 1,638 2,029 1,554 800 N N N

3 or More Stories........................ 2.5 2.5 4,429 3,399 1,599 3,049 2,459 1,623 N N N

Split-level.................................... 1.9 1.9 3,433 3,039 2,186 Q Q Q N N N

Other.......................................... 0.5 0.5 2,618 2,134 1,200 Q Q Q N N N

Not Asked................................... 31.4 6.9 NNNNNN 1,059 944 554

Major Outside Wall Construction

Siding (Aluminum, Vinyl, Steel).. 35.3 31.9 2,703 2,001 1,294 2,048 1,527 1,021 1,030 925 553

Brick........................................... 31.3 20.2 3,073 2,205 1,741 1,844 1,436 740 N N N

Wood.......................................... 20.0 16.6 2,638 1,888 931 2,359 1,755 1,041 1,239 1,051 516

Stucco........................................ 14.8 10.5 2,263 1,669 1,079 1,312 1,019 507 N N N

Concrete/Concrete Block............ 5.3 3.4 2,393 1,660 1,614 QQQQQQ

Composition (Shingle)................ 1.9 1.8 2,564 1,674 776 QQQQQQ

Stone.......................................... 1.0 0.8 4,460 2,857 2,380 Q Q Q N N N

Other.......................................... 1.5 1.4 2,749 2,111 1,185 QQQQQQ

Foundation/Basement of SingleFamily Units and Apartments in

2 to 4 Unit Buildings

(more than one may apply)

Basement................................... 35.5 34.0 3,356 2,428 1,466 2,356 1,731 820 N N N

Crawlspace................................. 25.1 24.3 2,451 1,765 1,037 1,839 1,303 766 N N N

Concrete Slab............................. 40.2 36.6 2,584 1,871 1,429 1,734 1,422 911 N N N

Not Asked (Mobile Homes and...

Apartments in Buildings

With 5 or More Units)................. 23.7 6.9 NNNNNN 1,059 944 554

Fuels Used for Any Use

(more than one may apply)

Electricity.................................... 111.1 86.6 2,720 1,970 1,310 1,941 1,475 821 1,059 944 554

Natural Gas................................ 69.5 54.3 2,748 2,015 1,391 1,946 1,486 807 1,039 918 418

Wood.......................................... 14.4 14.0 2,951 2,195 1,371 3,028 2,517 2,065 1,318 1,238 655

Fuel Oil....................................... 8.4 6.6 3,277 2,161 495 2,731 2,010 Q 880 541 Q

LPG............................................ 12.6 12.0 3,023 2,238 1,387 Q Q Q 1,063 870 482

Kerosene.................................... 1.7 1.6 2,431 1,673 754 Q Q Q 938 850 Q

Solar........................................... 0.2 0.2 2,261 1,704 Q NNNNNN

Main Space Heating Fuel

Natural Gas................................ 58.2 46.6 2,733 2,011 1,378 1,995 1,520 858 1,022 933 356

Electricity.................................... 33.7 23.7 2,584 1,861 1,545 1,655 1,347 849 1,081 992 762

Fuel Oil....................................... 7.7 6.0 3,298 2,179 495 2,731 2,010 Q 822 785 Q

LPG............................................ 6.0 5.9 2,668 2,048 1,289 Q Q Q 1,153 997 619

Wood.......................................... 2.9 2.8 2,584 1,993 765 QQQQQQ

Kerosene.................................... 0.7 0.7 1,908 1,124 Q Q Q Q 935 873 Q

Solar........................................... Q Q Q Q Q NNNNNN

Other.......................................... Q N NNNNNNNNN

None.......................................... 1.3 0.6 1,837 0 0 QQQQQQ

Energy Information Administration

2005 Residential Energy Consumption Survey: Preliminary Housing Characteristics Tables
Total1 Total1

Table HC1.1.3 Housing Unit Characteristics by Average Floorspace--

 Single-Family Housing Units and Mobile Homes, 2005

Single-Family Detached Single-Family Attached Mobile Homes

Housing Unit Characteristics Total Heated Heated Cooled 1 Heated Cooled

 Housing 

Units 

(millions)

Average Square Feet per Housing Unit--

Single-Family and Mobile Homes SingleFamily

and

Mobile

Homes

(millions) Cooled

Natural Gas Available

in Neighborhood

Yes............................................. 80.5 61.4 2,727 1,993 1,353 1,961 1,485 781 1,024 911 432

Actually Use Natural Gas........ 69.5 54.3 2,748 2,015 1,391 1,946 1,486 807 1,039 918 418

Do Not Use Natural Gas......... 11.1 7.1 2,566 1,820 1,051 2,069 1,480 599 947 877 504

No.............................................. 30.6 25.2 2,702 1,910 1,198 1,818 1,417 1,055 1,079 964 625

 1. Excludes floorspace in unheated garages.

 2. 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.

 -- = Data Not Applicable.

 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