Quick Facts: Apartment Stock

Characteristics of Rental Apartment Units, 2011
(Units in thousands)
  All Apartment Units Built 2000-2011 Built prior to 2000
Total 18,244,306 2,211,075 16,033,231
Number of Bedrooms
Zero     824,222 60,581 763,641
One 8,229,973 807,436 7,422,537
Two    7,656,757 988,505 6,668,252
Three or more 1,533,354 354,553 1,178,801
Number of Baths
Zero    152,704    9,700 143,004
One 14,475,724 1,152,365 13,323,359
Two or more 3,615,878 1,049,010 2,566,868
Amenities
At least one working elevator   3,660,751 565,889 3,094,862
Central air conditioning 10,176,051 1,874,269 8,301,782
Dishwasher 10,165,359 1,949,698 8,215,661
Washing machine  5,575,512 1,562,504 4,013,008
Dryer 5,230,187 1,544,980 3,685,207
Smoke detector 15,274,288 1,855,878 13,418,410
Apartment Units in Structure
5 to 9 5,386,404 436,612 4,949,792
10 to 24 6,836,116 951,672 5,884,444
25 to 49 2,136,502 233,809 1,902,693
50 to 99 1,593,178 185,352 1,407,826
100 or more  2,292,106 403,630 1,888,476
Structure Height
One story 1,160,305 114,189 1,046,116
Two stories 7,218,568 643,248 6,575,320
Three stories  5,385,630 928,105 4,457,525
Four or more stories 4,479,803 525,533 3,954,270
Source: NMHC tabulations of the U.S. Census Bureau's 2011 American Housing Survey.
Notes: The data for apartment units includes only those units in structures with five or more units. Estimates are for units either renter-occupied, rented but not yet occupied, or vacant and available for rent. Estimates are based on sample data and are subject to sampling and non-sampling error. Due to rounding and missing data for some variables, figures do not always total. Updated 6/2013.

 
When Were Apartments Built? 2012
Year All Apartments 5 to 9 Units 10 to 19 Units 20 to 49 Units 50 or More Units
1939 or Earlier 2,227,420 669,464 418,266 546,776 592,914
1940 to 1959 1,948,629 546,935 445,514 407,903 548,277
1960 to 1979 6,174,038 1,730,654 1,652,180 1,167,113 1,624,091
1980 to 1999 5,880,876 1,683,553 1,725,371 1,095,806 1,376,146
2000 or Later 3,300,774 680,879 821,884 678,115 1,119,896
Source: NMHC tabulations of 2012 American Community Survey microdata.Updated 12/2013.

 
State Distribution of the Apartment Stock, 2011
State Total Apartments Rank
Alabama 202,592 27
Alaska 30,966 49
Arizona 396,809 16
Arkansas 116,396 35
California 2,758,203 1
Colorado 377,010 17
Connecticut 207,540 26
Delaware 41,782 47
District of Columbia 118,836 33
Florida 1,232,147 4
Georgia 547,429 9
Hawaii 91,972 38
Idaho 48,603 46
Illinois 760,537 5
Indiana 316,856 20
Iowa 152,092 31
Kansas 138,025 32
Kentucky 181,348 28
Louisiana 178,790 29
Maine 58,905 42
Maryland 420,143 15
Massachusetts 468,581 13
Michigan 507,329 10
Minnesota 340,905 19
Mississippi 101,735 37
Missouri 266,668 22
Montana 38,007 48
Nebraska 116,441 34
Nevada 227,601 24
New Hampshire 66,439 41
New Jersey 552,471 8
New Mexico 78,109 39
New York 2,092,166 2
North Carolina 465,434 14
North Dakota 52,192 44
Ohio 651,766 6
Oklahoma 164,262 30
Oregon 250,810 23
Pennsylvania 579,472 7
Rhode Island 66,694 40
South Carolina 211,964 25
South Dakota 50,230 45
Tennessee 311,081 21
Texas 1,805,505 3
Utah 110,165 36
Vermont 20,102 51
Virginia 481,547 11
Washington 477,662 12
West Virginia 57,343 43
Wisconsin 341,580 18
Wyoming 20,986 50
Source: NMHC tabulations of 2011 American Community Survey microdata. An apartment is defined as a unitoccupied by renters, a vacant unit, or a rented unit not yet occupied, all located in a structure with 5 or more units.
Updated 6/2013.

Occupied Apartment Stock in 25 Largest Metropolitan Areas, 2012
Metro Area  Total Population   Occupied Apartments 
New York-Northern New Jersey-Long Island, NY-NJ-PA 19,160,024 2,102,973
Los Angeles-Long Beach-Santa Ana, CA 13,052,921 1,224,093
Chicago-Joliet-Naperville, IL-IN-WI 9,522,446 604,255
Dallas-Fort Worth-Arlington, TX 6,647,496 530,416
Houston-Sugar Land-Baytown, TX 6,204,161 470,719
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD 6,018,800 291,752
Washington-Arlington-Alexandria, DC-VA-MD-WV 5,804,333 490,244
Miami-Fort Lauderdale-Pompano Beach, FL 5,762,717 431,641
Atlanta-Sandy Springs-Marietta, GA 5,442,113 341,970
Boston-Cambridge-Quincy, MA-NH 4,640,802 324,267
San Francisco-Oakland-Fremont, CA 4,455,560 399,375
Riverside-San Bernardino-Ontario, CA 4,350,096 151,356
Detroit-Warren-Livonia, MI 4,292,060 219,072
Phoenix-Mesa-Glendale, AZ 4,329,534 248,934
Seattle-Tacoma-Bellevue, WA 3,552,157 304,205
Minneapolis-St. Paul-Bloomington, MN-WI 3,353,724 244,071
San Diego-Carlsbad-San Marcos, CA 3,177,063 261,746
Tampa-St. Petersburg-Clearwater, FL 2,842,878 185,711
St. Louis, MO-IL 2,819,381 123,025
Baltimore-Towson, MD 2,753,149 171,011
Denver-Aurora-Broomfield, CO 2,645,209 222,569
Pittsburgh, PA 2,360,733 113,073
Portland-Vancouver-Hillsboro, OR-WA 2,289,651 165,054
San Antonio-New Braunfels, TX 2,234,003 124,599
Sacramento-Arden-Arcade-Roseville, CA 2,196,482 125,047
Source: 2012 American Community Survey, 1-Year Estimates. Updated 10/2013.


    Distribution of Apartments by Size of Property  

Number of Rental Units on Property

Number of Properties

% of Total Properties

Number of Apartments

% of Total Apartments

2 to 4

2,034,797 

79% 

4,954,299 

23%

5 to 9

243,995

9%

1,719,119

8%

10 to 24

170,004 

7%

2,304,498

11%

25 to 49

59,432 

2%

2,116,255 

10%

50 to 99

31,993 

1%

2,212,861

10%

100 or more 

38,780

2%

8,213,180

38%

2 or more

2,579,001 

100%

21,520,212

100%

5 or more

544,204 

 21%

16,565,913 

77%

Source: NMHC tabulations of 2001 Residential Finance Survey. Posted 4/2010

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