| Rank |
County |
Percentage with High School Diploma |
| 1 |
Los Alamos County, New Mexico
|
98.6%
|
| 2 |
Mineral County, Colorado
|
97.6%
|
| 3 |
Douglas County, Colorado
|
97.5%
|
| 4 |
Routt County, Colorado
|
97.3%
|
| 5 |
Ouray County, Colorado
|
96.9%
|
| 6 |
Elbert County, Colorado
|
96.8%
|
| 7 |
Logan County, Nebraska
|
96.8%
|
| 8 |
Blaine County, Nebraska
|
96.7%
|
| 9 |
Morgan County, Utah
|
96.7%
|
| 10 |
Wheeler County, Nebraska
|
96.6%
|
| 11 |
Clear Creek County, Colorado
|
96.5%
|
| 12 |
Falls Church city, Virginia
|
96.0%
|
| 13 |
Hamilton County, Indiana
|
96.0%
|
| 14 |
Gallatin County, Montana
|
96.0%
|
| 15 |
Juneau City and Borough, Alaska
|
95.9%
|
| 16 |
Washington County, Minnesota
|
95.9%
|
| 17 |
Delaware County, Ohio
|
95.9%
|
| 18 |
Daniels County, Montana
|
95.8%
|
| 19 |
Whitman County, Washington
|
95.8%
|
| 20 |
Ozaukee County, Wisconsin
|
95.8%
|
| 21 |
San Miguel County, Colorado
|
95.7%
|
| 22 |
Johnson County, Kansas
|
95.6%
|
| 23 |
Pitkin County, Colorado
|
95.5%
|
| 24 |
Story County, Iowa
|
95.5%
|
| 25 |
Lincoln County, South Dakota
|
95.4%
|
| 26 |
Johnson County, Iowa
|
95.3%
|
| 27 |
Douglas County, Kansas
|
95.3%
|
| 28 |
Riley County, Kansas
|
95.3%
|
| 29 |
Arthur County, Nebraska
|
95.2%
|
| 30 |
Waukesha County, Wisconsin
|
95.2%
|
| 31 |
Hinsdale County, Colorado
|
95.1%
|
| 32 |
Warren County, Iowa
|
95.1%
|
| 33 |
Davis County, Utah
|
95.1%
|
| 34 |
Haines Borough, Alaska
|
95.0%
|
| 35 |
Skagway Municipality, Alaska
|
95.0%
|
| 36 |
Gosper County, Nebraska
|
95.0%
|
| 37 |
Rich County, Utah
|
95.0%
|
| 38 |
Albany County, Wyoming
|
95.0%
|
| 39 |
Teton County, Wyoming
|
95.0%
|
| 40 |
Nevada County, California
|
94.9%
|
| 41 |
Broomfield County, Colorado
|
94.9%
|
| 42 |
Wabaunsee County, Kansas
|
94.9%
|
| 43 |
Howard County, Maryland
|
94.9%
|
| 44 |
Barnstable County, Massachusetts
|
94.9%
|
| 45 |
Lewis and Clark County, Montana
|
94.9%
|
| 46 |
Island County, Washington
|
94.9%
|
| 47 |
Park County, Colorado
|
94.8%
|
| 48 |
Madison County, Idaho
|
94.8%
|
| 49 |
Summit County, Colorado
|
94.7%
|
| 50 |
Carver County, Minnesota
|
94.7%
|
| 51 |
York County, Virginia
|
94.7%
|
| 52 |
Petersburg Census Area, Alaska
|
94.6%
|
| 53 |
Sarpy County, Nebraska
|
94.6%
|
| 54 |
Sioux County, Nebraska
|
94.6%
|
| 55 |
Clay County, South Dakota
|
94.6%
|
| 56 |
Sublette County, Wyoming
|
94.6%
|
| 57 |
Dakota County, Minnesota
|
94.5%
|
| 58 |
Williamson County, Tennessee
|
94.5%
|
| 59 |
St Croix County, Wisconsin
|
94.5%
|
| 60 |
Custer County, Colorado
|
94.4%
|
| 61 |
Cheyenne County, Nebraska
|
94.4%
|
| 62 |
Garfield County, Washington
|
94.4%
|
| 63 |
Dane County, Wisconsin
|
94.4%
|
| 64 |
Grand County, Colorado
|
94.3%
|
| 65 |
Cass County, North Dakota
|
94.3%
|
| 66 |
Scott County, Minnesota
|
94.2%
|
| 67 |
Benton County, Oregon
|
94.2%
|
| 68 |
San Juan County, Washington
|
94.2%
|
| 69 |
Gilpin County, Colorado
|
94.1%
|
| 70 |
Teller County, Colorado
|
94.1%
|
| 71 |
Olmsted County, Minnesota
|
94.1%
|
| 72 |
Platte County, Missouri
|
94.1%
|
| 73 |
Hooker County, Nebraska
|
94.1%
|
| 74 |
Sheridan County, Wyoming
|
94.1%
|
| 75 |
Livingston County, Michigan
|
94.0%
|
| 76 |
Frontier County, Nebraska
|
94.0%
|
| 77 |
Hamilton County, Nebraska
|
94.0%
|
| 78 |
Hunterdon County, New Jersey
|
94.0%
|
| 79 |
La Plata County, Colorado
|
93.9%
|
| 80 |
Larimer County, Colorado
|
93.9%
|
| 81 |
Madison County, Iowa
|
93.9%
|
| 82 |
Cass County, Nebraska
|
93.9%
|
| 83 |
Rockingham County, New Hampshire
|
93.9%
|
| 84 |
Yakutat City and Borough, Alaska
|
93.8%
|
| 85 |
Leelanau County, Michigan
|
93.8%
|
| 86 |
Washtenaw County, Michigan
|
93.8%
|
| 87 |
Boulder County, Colorado
|
93.7%
|
| 88 |
Latah County, Idaho
|
93.7%
|
| 89 |
Republic County, Kansas
|
93.7%
|
| 90 |
McCone County, Montana
|
93.7%
|
| 91 |
Missoula County, Montana
|
93.7%
|
| 92 |
Jefferson County, Washington
|
93.7%
|
| 93 |
Williamsburg city, Virginia
|
93.6%
|
| 94 |
Chattahoochee County, Georgia
|
93.6%
|
| 95 |
Cumberland County, Maine
|
93.6%
|
| 96 |
Jefferson County, Montana
|
93.6%
|
| 97 |
Utah County, Utah
|
93.6%
|
| 98 |
Loudoun County, Virginia
|
93.6%
|
| 99 |
Fayette County, Georgia
|
93.5%
|
| 100 |
Valley County, Idaho
|
93.5%
|