21-Jan-15
Number of Households, Average Income and Income Shares, and Income Category Minimums
for Households with Children, by Household Income Category, 1979-2011
Year
Lowest
Quintile
Second
Quintile
Middle
Quintile
Fourth
Quintile
Highest
Quintile
All
Quintiles
81st - 90th 91st - 95th 96th - 99th
Percentiles Percentiles Percentiles
Top 1 %
Number of Households (Millions)
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
6.4
6.7
6.8
7.1
7.4
7.2
7.6
7.8
8.3
8.3
8.3
8.2
8.3
8.4
8.5
8.7
8.7
9.0
8.9
9.0
8.9
9.0
9.3
9.2
9.3
9.3
9.5
9.8
9.7
9.4
9.4
9.4
9.4
7.1
7.2
7.2
7.1
7.1
7.2
7.3
7.4
7.0
7.1
7.2
7.6
7.6
7.8
8.1
8.0
8.0
8.3
8.3
8.2
8.1
8.3
8.5
8.5
8.6
8.7
8.7
8.8
8.7
8.6
8.6
8.5
8.6
7.4
7.4
7.3
7.2
7.0
7.1
7.2
7.2
7.1
7.3
7.2
7.2
7.2
7.4
7.6
7.6
7.4
7.5
7.6
7.5
7.5
7.6
7.7
7.8
7.8
8.1
7.9
7.9
7.6
7.6
7.4
7.3
7.5
6.8
6.7
6.7
6.6
6.5
6.5
6.6
6.6
6.7
6.7
6.8
6.7
6.8
6.9
7.1
7.1
7.1
7.1
7.1
7.1
7.2
7.3
7.0
7.2
7.2
7.3
7.2
7.2
7.0
7.1
7.0
6.8
6.9
4.8
4.8
4.6
4.6
4.7
4.9
5.0
5.0
5.0
5.0
5.1
5.1
5.2
5.3
5.6
5.7
5.8
5.6
5.7
5.7
5.8
6.2
6.1
6.3
6.2
6.5
6.3
6.4
6.1
6.4
6.4
6.4
6.5
32.6
33.0
32.8
32.8
33.0
33.2
33.9
34.2
34.3
34.6
34.6
34.9
35.3
35.9
36.9
37.2
37.1
37.6
37.8
37.6
37.6
38.5
38.7
39.2
39.3
40.0
39.7
40.1
39.2
39.2
39.1
38.6
39.1
2.7
2.7
2.6
2.6
2.6
2.7
2.8
2.8
2.7
2.8
2.7
2.8
2.9
2.9
3.0
3.1
3.1
2.9
3.0
3.0
3.1
3.2
3.2
3.3
3.2
3.3
3.2
3.2
3.1
3.2
3.2
3.2
3.3
1.1
1.1
1.0
1.0
1.0
1.1
1.1
1.1
1.1
1.1
1.2
1.1
1.2
1.2
1.2
1.3
1.3
1.3
1.3
1.3
1.4
1.4
1.5
1.6
1.5
1.6
1.5
1.5
1.4
1.6
1.5
1.6
1.5
0.8
0.8
0.7
0.8
0.8
0.9
0.8
0.9
0.9
0.9
0.9
0.9
0.9
1.0
1.0
1.0
1.1
1.1
1.1
1.1
1.1
1.2
1.2
1.2
1.2
1.3
1.3
1.3
1.2
1.3
1.3
1.3
1.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.3
0.2
0.3
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
Average Before-Tax Income (2011 dollars)
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
24,200
23,000
22,200
21,400
20,700
21,600
21,400
21,500
20,700
21,200
22,200
23,700
24,200
24,200
25,100
24,900
26,500
26,100
26,800
28,000
28,600
27,800
28,500
28,700
28,400
29,600
30,300
31,000
32,700
32,300
31,900
32,900
33,200
45,200
43,400
43,300
42,500
41,400
44,100
44,000
44,900
44,400
44,900
45,700
46,800
45,900
45,600
46,100
46,900
49,100
49,400
50,700
52,600
54,600
54,400
55,400
54,400
54,400
56,400
57,900
58,800
61,400
59,300
58,800
59,100
59,200
65,200
63,200
63,200
62,400
61,700
65,100
65,600
67,300
67,500
68,400
69,400
70,000
69,000
69,000
69,500
70,600
73,300
74,200
75,600
78,400
81,300
81,800
83,000
81,300
81,400
84,500
86,300
87,900
90,700
88,400
87,100
88,000
86,800
87,800
85,700
87,000
86,200
86,000
90,900
90,900
94,000
95,200
96,400
97,700
97,800
96,900
97,600
98,500
100,400
102,900
104,800
107,700
112,400
115,600
117,800
118,400
115,900
117,800
121,100
123,800
126,600
130,800
127,100
125,000
126,500
126,000
165,100
162,000
162,400
161,900
170,800
184,400
181,200
211,700
200,700
210,800
215,700
204,800
199,600
208,100
210,800
213,300
231,000
245,000
259,000
282,600
302,800
323,100
294,800
277,500
290,600
312,900
339,300
370,000
395,200
345,300
307,600
336,100
328,900
71,700
68,800
68,400
67,100
67,700
72,700
72,100
77,400
75,100
77,200
79,300
78,200
77,200
78,700
80,100
81,400
86,600
87,600
91,700
97,500
103,400
108,000
103,000
100,300
101,800
108,500
113,000
118,500
123,300
116,100
108,900
114,700
113,200
117,700
115,400
115,300
115,000
115,600
123,100
122,400
127,900
129,600
131,700
134,000
133,700
131,700
133,100
134,500
136,600
141,600
145,600
149,700
156,100
161,900
165,700
165,700
161,600
164,300
169,500
174,000
180,100
183,500
178,000
175,000
177,000
177,600
148,300
145,500
145,400
145,400
148,100
157,800
158,600
165,600
169,200
172,000
175,100
174,300
172,200
173,900
175,500
178,900
186,700
192,400
199,200
210,000
219,300
226,100
218,700
214,600
218,400
226,800
234,500
245,000
253,000
241,400
234,300
237,500
238,600
222,100
215,600
214,100
214,500
220,200
234,400
237,800
262,900
256,900
269,000
269,700
268,100
263,700
271,600
269,900
275,400
288,500
308,000
325,100
347,900
365,500
373,500
353,700
341,400
350,300
371,300
401,800
415,300
433,600
395,400
370,100
383,100
390,100
625,400
603,300
624,300
640,100
745,100
816,200
817,900
1,286,900
917,000
1,117,400
1,070,000
895,200
866,100
1,000,700
1,004,100
968,600
1,157,300
1,268,600
1,390,100
1,608,100
1,936,000
2,214,700
1,711,100
1,504,000
1,599,000
1,868,200
2,192,900
2,511,800
2,739,100
2,150,600
1,555,000
1,994,300
1,854,900
Number of Households, Average Income and Income Shares, and Income Category Minimums
for Households with Children, by Household Income Category, 1979-2011
Year
Lowest
Quintile
Second
Quintile
Middle
Quintile
Fourth
Quintile
Highest
Quintile
All
Quintiles
81st - 90th 91st - 95th 96th - 99th
Percentiles Percentiles Percentiles
Top 1 %
Average After-Tax Income (2011 dollars)
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
22,000
20,900
20,000
19,400
18,700
19,100
19,100
19,200
18,900
19,400
20,500
21,600
22,200
22,400
23,200
23,400
25,000
24,700
25,400
26,500
27,100
26,100
27,300
27,600
27,400
28,700
29,300
29,900
31,800
32,900
32,800
33,700
33,900
37,800
36,400
35,900
35,800
34,700
36,600
36,600
37,200
37,100
37,400
38,300
39,000
38,600
38,700
39,200
40,000
41,800
42,200
43,200
45,200
46,800
46,800
48,700
48,200
48,900
50,600
51,900
52,500
54,600
54,800
55,000
54,900
55,200
52,200
50,500
49,900
49,900
49,700
52,000
52,400
53,600
54,300
54,700
55,500
55,900
55,200
55,500
56,000
56,700
59,100
59,900
60,700
63,700
66,100
66,600
69,000
68,000
69,100
71,600
73,100
74,300
76,600
76,900
76,000
76,600
75,900
68,700
66,500
66,800
67,300
67,500
71,000
71,100
73,300
74,900
75,400
76,400
76,300
75,600
76,400
77,000
78,400
80,400
81,900
83,900
88,200
90,900
92,400
94,500
93,000
96,200
98,700
100,700
102,700
106,300
105,400
104,300
104,800
105,000
122,500
120,000
120,400
123,600
130,600
141,100
138,900
162,200
149,200
157,400
161,400
153,600
148,800
154,200
153,600
154,200
165,600
175,200
185,000
202,500
215,700
229,900
213,200
202,600
215,800
231,500
249,100
271,300
291,900
258,700
231,400
249,900
247,000
56,400
54,100
53,300
53,200
53,800
57,400
57,100
61,100
59,000
60,500
62,300
61,500
60,700
61,900
62,600
63,500
67,300
68,100
71,000
75,900
80,100
83,200
81,100
79,700
82,100
87,000
90,200
94,100
98,300
94,800
89,900
93,600
93,000
90,400
88,000
86,900
88,600
89,500
95,400
94,500
98,500
99,700
101,100
102,800
102,400
100,700
101,900
103,200
104,100
107,600
110,900
113,700
118,700
122,900
125,600
127,200
125,200
129,700
133,400
136,400
141,000
143,700
141,700
139,800
140,500
142,300
112,300
109,300
108,500
111,400
114,400
121,900
122,300
127,400
128,200
130,600
133,300
132,700
130,300
131,800
132,000
134,300
139,600
143,800
148,200
156,300
162,400
167,000
163,600
162,000
167,900
173,700
178,800
186,600
193,400
186,000
181,700
182,600
185,300
163,400
157,800
157,900
162,800
168,900
179,800
183,100
201,300
190,300
199,900
200,700
199,600
195,500
199,700
196,300
198,800
207,900
220,500
231,700
247,900
258,100
263,600
254,900
248,300
257,900
271,500
291,100
301,100
315,700
291,000
274,100
281,200
288,200
419,300
417,700
445,600
480,500
549,100
603,000
612,500
976,300
635,400
795,100
766,900
643,000
611,200
695,400
656,800
621,900
736,500
809,300
901,100
1,065,200
1,279,300
1,475,700
1,142,400
1,002,600
1,096,000
1,289,400
1,509,600
1,739,700
1,938,900
1,530,900
1,091,300
1,392,600
1,302,700
Share of Before-Tax Income (Percent)
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
6.6
6.8
6.7
6.9
6.8
6.5
6.6
6.3
6.7
6.6
6.7
7.1
7.4
7.2
7.2
7.2
7.2
7.1
6.9
6.8
6.5
6.0
6.6
6.7
6.6
6.3
6.4
6.4
6.6
6.7
7.1
7.0
7.1
13.7
13.8
13.9
13.8
13.2
13.1
13.2
12.5
12.1
12.0
11.9
13.1
12.9
12.7
12.6
12.3
12.3
12.4
12.1
11.7
11.4
10.8
11.8
11.8
11.7
11.3
11.2
10.9
11.0
11.2
11.9
11.3
11.5
20.6
20.6
20.6
20.4
19.4
19.3
19.2
18.2
18.7
18.6
18.3
18.6
18.3
17.9
17.8
17.7
16.9
16.9
16.5
16.0
15.7
15.0
16.0
16.1
15.9
15.8
15.2
14.6
14.3
14.7
15.2
14.6
14.8
25.6
25.4
25.9
25.9
25.2
24.6
24.6
23.6
24.7
24.2
24.1
23.9
24.1
23.7
23.7
23.5
22.7
22.6
22.1
21.8
21.4
20.8
20.9
21.3
21.3
20.3
20.0
19.1
18.8
19.8
20.7
19.5
19.7
33.8
33.9
33.5
33.8
36.1
37.3
37.2
40.0
38.9
39.5
39.9
38.1
38.2
39.3
39.7
40.0
41.6
41.5
42.9
44.1
45.5
47.9
45.3
44.8
45.2
46.9
47.9
49.6
50.1
48.8
46.4
48.8
48.1
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
13.4
13.5
13.5
13.6
13.7
13.7
14.0
13.4
13.7
13.6
13.3
13.5
13.8
13.7
13.7
13.8
13.7
13.0
13.0
12.7
12.8
12.9
13.2
13.4
13.0
13.0
12.4
12.3
11.8
12.7
13.3
12.9
13.1
6.9
6.9
6.7
6.7
6.9
7.2
7.5
7.2
7.3
7.2
7.5
7.3
7.6
7.5
7.4
7.7
7.5
7.6
7.6
7.6
7.7
7.9
8.0
8.5
8.4
8.2
7.9
7.8
7.5
8.3
8.4
8.4
8.3
7.9
7.7
7.1
7.5
7.9
8.3
8.2
8.6
8.9
9.0
9.0
9.1
8.7
9.3
9.5
9.4
9.9
9.9
10.4
10.6
10.5
10.7
10.4
10.4
10.4
10.9
11.7
11.0
11.0
11.2
11.1
10.9
11.4
5.7
5.9
6.2
6.0
7.6
8.1
7.5
10.9
8.9
9.7
10.1
8.2
8.1
8.8
9.1
9.1
10.6
11.1
11.9
13.2
14.5
16.5
13.7
12.5
13.4
14.9
15.9
18.5
19.7
16.7
13.5
16.5
15.2
Number of Households, Average Income and Income Shares, and Income Category Minimums
for Households with Children, by Household Income Category, 1979-2011
Year
Lowest
Quintile
Second
Quintile
Middle
Quintile
Fourth
Quintile
Highest
Quintile
All
Quintiles
81st - 90th 91st - 95th 96th - 99th
Percentiles Percentiles Percentiles
Top 1 %
Share of After-Tax Income (Percent)
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
7.6
7.8
7.7
7.9
7.8
7.2
7.5
7.2
7.8
7.7
7.9
8.2
8.6
8.5
8.5
8.7
8.7
8.7
8.5
8.3
8.0
7.3
8.0
8.1
7.9
7.6
7.7
7.8
8.0
8.3
8.8
8.8
8.8
14.6
14.7
14.8
14.6
13.9
13.8
13.8
13.1
12.9
12.7
12.7
13.8
13.7
13.6
13.7
13.5
13.5
13.7
13.4
13.0
12.6
12.1
13.2
13.2
13.0
12.6
12.5
12.2
12.3
12.7
13.5
12.9
13.1
20.9
21.0
20.8
20.6
19.6
19.5
19.4
18.4
19.1
18.9
18.6
18.9
18.6
18.3
18.4
18.2
17.5
17.6
17.1
16.7
16.5
15.8
16.9
16.9
16.8
16.7
16.1
15.5
15.1
15.6
16.1
15.5
15.7
25.5
25.1
25.6
25.4
24.9
24.4
24.3
23.3
24.7
24.2
24.0
23.8
23.9
23.6
23.7
23.5
22.8
22.7
22.2
22.0
21.7
21.1
21.2
21.5
21.5
20.7
20.4
19.5
19.2
20.1
20.9
19.8
20.0
31.9
32.0
31.9
32.5
34.8
36.1
36.1
38.9
36.8
37.6
38.0
36.3
36.2
37.0
37.0
37.1
38.4
38.2
39.6
40.6
41.9
44.3
41.5
41.2
41.6
43.2
44.0
45.7
46.4
44.8
42.3
44.5
43.9
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
13.1
13.1
13.1
13.2
13.3
13.4
13.7
13.1
13.5
13.3
13.0
13.2
13.4
13.3
13.4
13.5
13.4
12.7
12.7
12.4
12.5
12.6
12.8
13.1
12.7
12.7
12.2
12.1
11.6
12.3
12.9
12.6
12.8
6.6
6.6
6.4
6.4
6.7
7.0
7.3
7.0
7.1
7.0
7.3
7.0
7.4
7.3
7.1
7.4
7.3
7.3
7.3
7.2
7.4
7.5
7.6
8.1
8.0
7.8
7.5
7.5
7.2
7.8
7.9
7.9
7.9
7.4
7.1
6.8
7.1
7.7
8.1
8.0
8.3
8.4
8.5
8.6
8.6
8.2
8.7
8.8
8.7
9.1
9.1
9.6
9.7
9.6
9.8
9.5
9.5
9.5
9.9
10.6
10.0
10.0
10.1
9.9
9.8
10.3
Source: Congressional Budget Office, https://www.cbo.gov/publication/49440
Notes: Effective tax rates are calculated by dividing taxes by comprehensive household income. An elderly childless household
is headed by a person age 65 or older with no member under age 18.
Comprehensive household income equals pretax cash income plus income from other sources. Pretax cash income is the sum
of wages, salaries, self-employment income, rents, taxable and nontaxable interest, dividends, realized capital gains, cash
transfer payments, and retirement benefits plus taxes paid by businesses (corporate income taxes and the employer's share of
Social Security, Medicare, and federal unemployment insurance payroll taxes) and employees' contributions to 401(k) retirement
plans. Other sources of income include all in-kind benefits (Medicare, Medicaid, employer-paid health insurance premiums, food
Income categories are defined by ranking all people by their comprehensive household income adjusted for household size—that
is, divided by the square root of the household’s size. (A household consists of the people who share a housing unit, regardless
of their relationships.) Quintiles, or fifths, contain equal numbers of people. Households with negative income (business or
investment losses larger than other income) are excluded from the lowest income category but are included in totals.
Individual income taxes are attributed directly to households paying those taxes. Social insurance, or payroll, taxes are attributed
to households paying those taxes directly or paying them indirectly through their employers. Corporate income taxes are
attributed to households according to their share of capital income. Federal excise taxes are attributed to them according to their
consumption of the taxed good or service.
The minimum adjusted income is the lower income boundary for each quintile. Because incomes are adjusted by dividing
income by the square root of household size, an adjusted income range implies different unadjusted income for different size
households. To compute the unadjusted income range for a particular size household, the adjusted income must be multiplied
by the square root of the household size: 1.414 for a two-person household, 1.732 for a three-person household; 2.0 for a fourperson household, 2.236 for a five-person household.
4.8
5.2
5.7
5.7
7.0
7.6
7.1
10.5
7.9
8.8
9.2
7.5
7.2
7.8
7.6
7.5
8.6
9.1
9.9
11.3
12.4
14.3
11.6
10.5
11.4
12.8
13.8
16.1
17.5
14.6
11.5
14.2
13.0