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American Community Survey (ACS)


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2001 Supplementary Survey Profile
Illinois
Supplementary Survey 2001 Logo

TABLE 4. PROFILE OF SELECTED HOUSING CHARACTERISTICS
  Estimate Lower
Bound
Upper
Bound
Total housing units
4,937,541
*****
*****
UNITS IN STRUCTURE
1-unit, detached
2,826,796
2,783,446
2,870,146
1-unit, attached
237,646
220,210
255,082
2 units
330,850
312,231
349,469
3 or 4 units
356,735
338,694
374,776
5 to 9 units
340,897
320,548
361,246
10 to 19 units
238,294
212,734
263,854
20 or more units
457,269
433,065
481,473
Mobile home
147,626
119,936
175,316
Boat, RV, van, etc.
1,428
278
2,578
 
YEAR STRUCTURE BUILT
1999 or later
115,267
105,973
124,561
1995 to 1998
247,756
235,224
260,288
1990 to 1994
256,961
237,161
276,761
1980 to 1989
486,841
463,154
510,528
1970 to 1979
801,617
775,207
828,027
1960 to 1969
664,959
634,922
694,996
1950 to 1959
751,435
724,509
778,361
1940 to 1949
438,827
407,980
469,674
1939 or earlier
1,173,878
1,125,418
1,222,339
 
ROOMS
1 room
82,466
73,086
91,846
2 rooms
155,377
134,975
175,779
3 rooms
430,863
412,205
449,521
4 rooms
879,815
848,828
910,802
5 rooms
1,127,847
1,097,073
1,158,621
6 rooms
934,214
912,512
955,916
7 rooms
562,791
542,008
583,574
8 rooms
400,429
384,168
416,690
9 rooms or more
363,739
346,988
380,490
Median (rooms)
5.3
5.1
5.5
 
Occupied housing units
4,600,321
4,578,640
4,622,002
YEAR HOUSEHOLDER MOVED INTO UNIT
2000 or later
911,833
885,063
938,603
1995 to 1999
1,493,077
1,461,955
1,524,199
1990 to 1994
659,666
641,240
678,092
1980 to 1989
679,545
655,769
703,322
1970 to 1979
437,624
422,101
453,147
1969 or earlier
418,576
405,016
432,136
 
VEHICLES AVAILABLE
No vehicles available
533,365
512,390
554,340
1
1,596,938
1,569,301
1,624,576
2
1,745,321
1,716,357
1,774,285
3 or more
724,697
700,213
749,181
 
HOUSE HEATING FUEL
Utility gas
3,748,485
3,662,843
3,834,127
Bottled, tank, or LP gas
219,310
152,467
286,153
Electricity
557,367
533,888
580,847
Fuel oil, kerosene, etc.
20,440
16,229
24,651
Coal or coke
1,323
284
2,363
Wood
20,094
7,902
32,286
Solar energy
213
0
573
Other fuel
19,532
15,341
23,723
No fuel used
13,557
10,531
16,583
 
SELECTED CHARACTERISTICS
Lacking complete plumbing facilities
19,664
14,419
24,909
Lacking complete kitchen facilities
22,773
17,138
28,408
No telephone service available
187,002
173,286
200,718
 
OCCUPANTS PER ROOM
1.00 or less
4,452,447
4,427,974
4,476,920
1.01 to 1.50
103,405
92,866
113,944
1.51 or more
44,469
37,593
51,345
 
Specified owner-occupied units
2,480,160
2,423,895
2,536,425
VALUE
Less than $50,000
222,471
185,828
259,114
$50,000 to $99,999
618,139
570,876
665,402
$100,000 to $149,999
547,043
512,830
581,256
$150,000 to $199,999
435,560
412,234
458,886
$200,000 to $299,999
367,974
352,890
383,058
$300,000 to $499,999
203,743
193,313
214,173
$500,000 to $999,999
70,850
65,558
76,142
$1,000,000 or more
14,380
11,547
17,213
Median (dollars)
136,894
134,851
138,937
 
MORTGAGE STATUS AND SELECTED MONTHLY OWNER COSTS
Housing units with a mortgage
1,715,401
1,666,734
1,764,068
Less than $300
4,408
1,928
6,888
$300 to $499
58,708
51,479
65,937
$500 to $699
135,758
125,548
145,968
$700 to $999
326,484
305,796
347,172
$1,000 to $1,499
552,125
521,973
582,277
$1,500 to $1,999
330,482
313,314
347,650
$2,000 or more
307,436
294,074
320,798
Median (dollars)
1,289
1,273
1,306
Housing units without a mortgage
764,759
745,914
783,604
Less than $100
3,770
2,231
5,309
$100 to $199
64,584
57,737
71,432
$200 to $299
146,594
139,578
153,610
$300 to $399
167,898
156,962
178,834
$400 or more
381,913
364,240
399,586
Median (dollars)
400
392
408
 
SELECTED MONTHLY OWNER COSTS AS A PERCENTAGE OF HOUSEHOLD INCOME
Housing unit with a mortgage
1,715,401
1,666,734
1,764,068
Less than 20 percent
670,859
639,674
702,044
20.0 to 24.9 percent
298,556
282,213
314,899
25.0 to 29.9 percent
217,003
204,277
229,729
30.0 to 34.9 percent
148,691
138,326
159,056
35.0 percent or more
375,575
360,849
390,301
Not computed
4,717
2,471
6,963
Housing unit without a mortgage
764,759
745,914
783,604
Less than 10 percent
298,788
283,986
313,590
10.0 to 14.9 percent
166,609
156,773
176,445
15.0 to 19.9 percent
89,427
82,353
96,501
20.0 to 24.9 percent
53,925
48,242
59,608
25.0 to 29.9 percent
35,055
30,991
39,119
30.0 to 34.9 percent
25,279
21,014
29,544
35.0 percent or more
89,390
81,313
97,467
Not computed
6,286
4,331
8,241
 
Specified renter-occupied units
1,510,484
1,477,963
1,543,006
GROSS RENT
Less than $200
75,244
63,531
86,957
$200 to $299
57,645
48,082
67,208
$300 to $499
270,140
254,953
285,327
$500 to $749
513,328
482,877
543,779
$750 to $999
326,390
308,377
344,403
$1,000 to $1,499
164,947
152,049
177,845
$1,500 or more
43,647
38,049
49,245
No cash rent
59,143
52,870
65,416
Median (dollars)
660
652
668
 
GROSS RENT AS A PERCENTAGE OF HOUSEHOLD INCOME
Less than 15 percent
233,698
217,584
249,812
15.0 to 19.9 percent
213,665
200,218
227,113
20.0 to 24.9 percent
201,882
185,770
217,994
25.0 to 29.9 percent
169,849
156,449
183,249
30.0 to 34.9 percent
114,572
102,717
126,427
35.0 percent or more
485,074
463,347
506,801
Not computed
91,744
82,557
100,931

The 2001 Supplementary Survey universe is limited to the household population and excludes the population living in institutions, college dormitories, and other group quarters. Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate is represented through the use of a confidence interval. The confidence interval computed here is a 90 percent confidence interval and can be interpreted roughly as providing 90 percent certainty that the true number falls between the lower and upper bounds.

1. An '*' entry in the lower and upper bound columns indicates that too few sample observations were available to compute a standard error and thus the lower and upper bounds. A statistical test is not appropriate.
2. An '**' entry in the lower and upper bound columns indicates that no sample observations were available to compute a standard error and thus the lower and upper bounds. A statistical test is not appropriate.
3. An '-' entry in the estimate column indicates that no sample observations were available to compute an estimate.
4. An '-' following a median estimate means the median falls in the lowest interval of an open-ended distribution.
5. An '+' following a median estimate means the median falls in the upper interval of an open-ended distribution.
6. An '***' entry in the lower and upper bound columns indicates that the median falls in the lowest interval or upper interval of an open-ended distribution. A statistical test is not appropriate.
7. An '*****' entry in the lower and upper bound columns indicates that the estimate is controlled. A statistical test is not appropriate.
8. An 'N' entry in the estimate, lower bound, and upper bound columns indicates that data for this geographic area cannot be displayed because the number of sample cases is too small.

Source: U.S. Census Bureau  |  American Community Survey Office  |  Page Last Modified: August 23, 2007