Order		Cross- jurisdiction significant difference	Number of Jurisdictions Significantly			Eligible percent at or above Basic
			higher	not different	lower	2009
			higher	not different	lower
1 Miami-Dade	Miami-Dade	>	0	4	12	58
2 Boston	Boston	>	0	4	12	57
3 Jefferson County (KY)	Jefferson County (KY)	>	0	7	9	57
National public	National public	>	0	5	13	56
4 New York City	New York City	>	0	7	9	53
5 Charlotte	Charlotte	>	0	7	9	52
6 Houston	Houston	x	2	5	9	50
7 Austin	Austin	x	2	5	9	50
8 San Diego	San Diego	x	2	5	9	49
Large city	Large city		6	3	9	47
9 Los Angeles	Los Angeles	<	8	5	3	40
10 Atlanta	Atlanta	<	8	5	3	40
11 Chicago	Chicago	<	8	5	3	38
12 Milwaukee	Milwaukee	<	8	6	2	37
13 Philadelphia	Philadelphia	<	8	6	2	35
14 Fresno	Fresno	<	8	7	1	34
15 Cleveland	Cleveland	<	11	5	0	30
16 Baltimore City	Baltimore City	<	13	3	0	27
17 Detroit	Detroit	<	14	2	0	23
NOTE: National public and Large city are not included in sorting the jurisdictions. Score differences are calculated based on differences between unrounded scores.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Science Assessment.