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Number of U.S. Housing Unit
s


Page Last Revised: July 2009

Table 2. Number of U.S. Housing Units by Census Region and Type of Housing Unit, 1978-2005
(Millions of Households)

Type of Housing Unit and Census Region

1978

1979

1980

1981

1982

1984

1987

1990

1993

1997

2001
2005

U.S. Total

76.6
77.5
81.6
83.1
83.8
86.3
90.5
94.0
96.6
101.5
107.0
111.1

Mobile Home

4.8
4.1
4.6
4.2
3.7
5.1
5.1
5.2
5.6
6.3
6.8
6.9

Single-Family Detached

48.5
50.1
53.0
54.6
53.8
53.5
55.2
58.4
59.5
63.8
63.1
72.1

Single-Family Attached

3.1
3.3
3.3
3.0
3.9
4.1
5.3
6.0
7.3
9.9
10.6
7.6

Apartments in Buildings with 2 to 4 Units

11.0
9.4
9.9
9.3
10.1
10.0
10.1
10.0
8.0
5.6
9.5
7.8

Apartments in Buildings with 5 or More Units

9.2
10.6
10.8
12.0
12.2
13.6
14.9
14.4
16.2
15.8
17.0
16.7

Total Northeast

17.4
17.2
17.7
17.9
18.0
18.3
19.0
19.2
19.5
19.7
20.3
20.6

Mobile Home

0.4
0.2
0.5
0.4
0.4
0.7
0.7
0.5
0.5
0.5
0.7
0.4

Single-Family Detached

7.9
8.0
8.8
8.8
8.7
9.1
9.1
9.8
9.5
10.7
9.2
11.2

Single-Family Attached

1.6
1.1
1.6
1.3
1.9
1.8
2.0
2.1
2.4
3.1
2.8
2.3

Apartments in Buildings with 2 to 4 Units

4.4
3.5
3.3
3.6
3.5
3.2
3.2
3.5
2.9
1.7
3.1
2.5

Apartments in Buildings with 5 or More Units

3.1
4.4
3.5
3.8
3.5
3.6
4.1
3.3
4.1
3.8
4.5
4.2

Total Midwest

20.6
20.7
21.1
21.2
21.3
21.6
22.3
23.1
23.3
24.1
24.5
25.6

Mobile Home

0.9
0.7
0.6
0.8
0.7
1.1
1.2
1.6
1.4
1.1
1.2
0.8

Single-Family Detached

15.5
15.6
15.2
15.2
14.4
13.7
14.7
15.3
15.6
16.6
15.5
18.7

Single-Family Attached

0.6
0.7
0.3
0.3
0.6
0.9
0.9
0.7
0.9
1.8
2.8
1.5

Apartments in Buildings with 2 to 4 Units

2.9
2.7
2.9
2.4
2.5
2.8
2.6
2.5
1.8
1.7
2.2
1.5

Apartments in Buildings with 5 or More Units

0.8
1.0
2.1
2.5
3.1
3.1
2.8
3.0
3.5
2.8
2.8
3.1

Total South

24.6
24.9
26.9
27.7
28.0
29.3
30.9
32.3
33.5
35.9
38.9
40.7

Mobile Home

2.8
2.2
2.4
2.1
1.8
2.3
2.2
1.9
2.6
3.0
3.3
3.8

Single-Family Detached

16.9
18.0
19.1
19.9
20.5
20.7
20.8
21.8
22.3
23.9
25.5
27.2

Single-Family Attached

0.5
0.9
0.6
0.7
0.4
1.1
1.5
1.9
2.5
2.7
3.1
2.0

Apartments in Buildings with 2 to 4 Units

2.0
1.6
2.0
1.8
2.4
1.7
2.2
2.4
1.7
1.4
2.6
1.9

Apartments in Buildings with 5 or More Units

2.3
2.2
2.8
3.2
3.0
3.5
4.2
4.3
4.4
4.8
4.5
5.8

Total West

14.0
14.7
15.9
16.3
16.5
17.1
18.3
19.4
20.4
21.8
23.3
24.2

Mobile Home

0.7
0.9
1.1
0.8
0.9
1.0
1.0
1.2
1.0
1.7
1.7
2.0

Single-Family Detached

8.2
8.6
9.9
10.7
10.2
10.0
10.5
11.5
12.0
12.6
13.0
15.0

Single-Family Attached

0.4
0.5
0.9
0.7
0.9
0.3
0.9
1.2
1.5
2.3
1.8
1.8

Apartments in Buildings with 2 to 4 Units

1.7
1.6
1.7
1.5
1.7
2.3
2.0
1.7
1.6
0.8
1.6
1.8

Apartments in Buildings with 5 or More Units

3.0
3.0
2.3
2.5
2.7
3.4
3.8
3.8
4.3
4.4
5.3
3.6

Sources: Energy Information Administration, Residential Energy Consumption Surveys, 1978, 1979, 1980, 1981, 1982, 1984, 1987, 1990, 1993, 1997, 2001 and 2005.