AFF Table

Subject	Percent of total	MOE	Median income (dollars)	MOE
HOUSEHOLD INCOME BY RACE AND HISPANIC OR LATINO ORIGIN OF HOUSEHOLDER
Households	4,817,757	+/-45100	42,941	+/-606
One race--
White	86.5	+/-0.3	45,255	+/-580
Black or African American	9.5	+/-0.2	27,870	+/-1842
American Indian and Alaska Native	N	N	N	N
Asian	1.8	+/-0.1	51,286	+/-4590
Native Hawaiian and Other Pacific Islander	N	N	N	N
Some other race	1.4	+/-0.1	26,713	+/-1775
Two or more races	0.6	+/-0.1	34,059	+/-7259

Hispanic or Latino origin (of any race)	2.9	+/-0.2	28,966	+/-3747
White alone, not Hispanic or Latino	85.2	+/-0.3	45,414	+/-613

HOUSEHOLD INCOME BY AGE OF HOUSEHOLDER
15 to 24 years	4.1	+/-0.2	23,094	+/-1719
25 to 44 years	34.4	+/-0.4	50,493	+/-934
45 to 64 years	37.1	+/-0.4	56,005	+/-1111
65 years and over	24.4	+/-0.3	24,517	+/-738

FAMILIES
Families	3,216,764	+/-41114	53,680	+/-983
With own children under 18 years	43.9	+/-0.7	55,135	+/-1122
With no own children under 18 years	56.1	+/-0.7	52,803	+/-1120
Married-couple families	76.1	+/-0.8	62,101	+/-824
Female householder, no husband present	17.7	+/-0.6	26,684	+/-1092
Male householder, no wife present	6.2	+/-0.4	38,462	+/-2986

NONFAMILY HOUSEHOLDS
Nonfamily households	1,600,993	+/-29632	23,958	+/-923
Female householder	56.8	+/-1.0	19,073	+/-597
Living alone	50.2	+/-0.9	17,504	+/-579
Not living alone	6.6	+/-0.5	46,438	+/-3176
Male householder	43.2	+/-1.0	31,093	+/-876
Living alone	34.8	+/-0.9	27,923	+/-1482
Not living alone	8.4	+/-0.6	48,306	+/-4353

PERCENT IMPUTED
Household income in the past 12 months	26.0	(X)	(X)	(X)
Family income in the past 12 months	25.9	(X)	(X)	(X)
Nonfamily income in the past 12 months	25.2	(X)	(X)	(X)

Source: U.S. Census Bureau, 2004 American Community Survey

Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate arising from sampling variability is represented through the use of a margin of error. The value shown here is the 90 percent margin of error. The margin of error can be interpreted roughly as providing a 90 percent probability that the interval defined by the estimate minus the margin of error and the estimate plus the margin of error (the lower and upper confidence bounds) contains the true value. In addition to sampling variability, the ACS estimates are subject to nonsampling error (for a discussion of nonsampling variability, see Accuracy of the Data). The effect of nonsampling error is not represented in these tables.

Explanation of Symbols:

1. An '*' entry in the margin of error column indicates that too few sample observations were available to compute a standard error and thus the margin of error. A statistical test is not appropriate.

2. An '**' entry in the margin of error column indicates that no sample observations were available to compute a standard error and thus the margin of error. A statistical test is not appropriate.

3. An '-' entry in the estimate column indicates that no sample observations were available to compute an estimate, or a ratio of medians cannot be calculated because one or both of the median estimates falls in the lowest interval or upper interval of an open-ended distribution.

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 margin of error column 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 margin of error column indicates that the estimate is controlled. A statistical test for sampling variability is not appropriate.

8. An 'N' entry in the estimate and margin of error columns indicates that data for this geographic area cannot be displayed because the number of sample cases is too small.

9. An '(X)' means that the estimate is not applicable or not available.

Prepared By: The Pennsylvania State Data Center 02/1/2006