US Counties With the Highest Average Test Scores

2,772 US counties ranked by average test score, from highest to lowest. First are Skagway Municipality, AK (0.738), Forsyth County, GA (0.713) and Norfolk County, MA (0.652). The middle one of the 2,772 has -0.0648.

What this measures

How far above or below the national average children here score on tests, in grade levels. Minus one means about a year behind. It reflects everything in children's lives, not only their schools. Source: Stanford Education Data Archive.

For most measures, a national ranking mostly sorts places by income and by how urban they are. Each county’s own page compares it with the 50 counties most like it instead, which is often the fairer view.

The 100 highest counties

Rank	County	grade levels
1	Skagway Municipality, AK	0.738
2	Forsyth County, GA	0.713
3	Norfolk County, MA	0.652
4	Morris County, NJ	0.627
5	Williamson County, TN	0.621
6	Hamilton County, IN	0.619
7	Hunterdon County, NJ	0.607
8	Dukes County, MA	0.583
9	Warren County, OH	0.572
10	Somerset County, NJ	0.572
11	Ozaukee County, WI	0.569
12	Bristol County, RI	0.564
13	Falls Church city, VA	0.562
14	Delaware County, OH	0.561
15	Middlesex County, MA	0.559
16	Logan County, NE	0.553
17	Chester County, PA	0.552
18	Douglas County, CO	0.547
19	Bergen County, NJ	0.546
20	Oconee County, GA	0.546
21	Los Alamos County, NM	0.543
22	Hendricks County, IN	0.542
23	Routt County, CO	0.539
24	Orange County, NC	0.537
25	Sheridan County, WY	0.536
26	Montgomery County, PA	0.526
27	Nemaha County, KS	0.524
28	Union County, PA	0.521
29	Ouray County, CO	0.518
30	Waukesha County, WI	0.502
31	Howard County, MD	0.501
32	St. Johns County, FL	0.499
33	Carver County, MN	0.492
34	Boone County, IN	0.488
35	Mercer County, OH	0.473
36	Spencer County, IN	0.47
37	Johnson County, KS	0.47
38	Collin County, TX	0.465
39	Warrick County, IN	0.46
40	Geauga County, OH	0.459
41	Hinsdale County, CO	0.455
42	Douglas County, MN	0.453
43	Boulder County, CO	0.45
44	Nicollet County, MN	0.449
45	Broomfield County, CO	0.448
46	Union County, NC	0.445
47	Washington County, MN	0.441
48	Polk County, NC	0.435
49	Hooker County, NE	0.435
50	Dickey County, ND	0.434
51	Park County, WY	0.432
52	Scott County, MN	0.424
53	Lincoln County, WY	0.421
54	Wright County, MN	0.419
55	Bucks County, PA	0.418
56	Monmouth County, NJ	0.416
57	Rockingham County, NH	0.413
58	Centre County, PA	0.412
59	Medina County, OH	0.411
60	Wibaux County, MT	0.409
61	Borden County, TX	0.408
62	Carroll County, MD	0.407
63	Hanover County, VA	0.407
64	Larimer County, CO	0.406
65	Washington County, RI	0.405
66	Loudoun County, VA	0.405
67	Monroe County, IL	0.4
68	Barnstable County, MA	0.391
69	Dallas County, IA	0.388
70	Albany County, WY	0.386
71	Middlesex County, NJ	0.386
72	Butler County, PA	0.385
73	Stevens County, MN	0.384
74	Auglaize County, OH	0.384
75	York County, VA	0.382
76	Steele County, ND	0.382
77	Fairfax County, VA	0.382
78	Story County, IA	0.381
79	Calvert County, MD	0.381
80	Mitchell County, KS	0.381
81	Chittenden County, VT	0.38
82	Union County, OH	0.38
83	Washington County, WI	0.38
84	DuPage County, IL	0.377
85	Arlington County, VA	0.376
86	Plymouth County, MA	0.375
87	Fayette County, GA	0.374
88	Putnam County, OH	0.373
89	Oldham County, KY	0.372
90	Worcester County, MD	0.371
91	Dubois County, IN	0.37
92	Gallatin County, MT	0.367
93	Door County, WI	0.364
94	San Miguel County, CO	0.364
95	Cherry County, NE	0.363
96	Montour County, PA	0.36
97	Granite County, MT	0.359
98	Wabasha County, MN	0.358
99	Pierce County, NE	0.355
100	Nassau County, NY	0.355

More on average test score

A ranking describes places, not the people in them, and a high or low place does not by itself say why. All US rankings.