Data / Rankings / Graduate or professional degree, population 25 and over / Counties in Kentucky

Counties in Kentucky by graduate or professional degree, population 25 and over

Fayette County had the highest graduate or professional degree, population 25 and over of 120 counties in 2021, at 19.8%. Robertson County had the lowest, at 1.8%. The median was 6.7% and the figure for Kentucky was 10.6%. Source: the U.S. Census Bureau.

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Highest19.8Fayette County
Lowest1.8Robertson County
Median6.7120 counties
Kentucky10.6History

Map of counties, 2021

Adair County: 10.3 %Allen County: 6.5 %Anderson County: 9.2 %Ballard County: 5.4 %Barren County: 6.4 %Bath County: 6.2 %Bell County: 4.3 %Boone County: 12.6 %Bourbon County: 10.5 %Boyd County: 9 %Boyle County: 11.4 %Bracken County: 6.2 %Breathitt County: 9.7 %Breckinridge County: 5.9 %Bullitt County: 5.6 %Butler County: 7 %Caldwell County: 8.2 %Calloway County: 14.3 %Campbell County: 14.3 %Carlisle County: 4.2 %Carroll County: 2.4 %Carter County: 5.6 %Casey County: 5.8 %Christian County: 6.4 %Clark County: 7.5 %Clay County: 5.6 %Clinton County: 6.5 %Crittenden County: 4.8 %Cumberland County: 4.7 %Daviess County: 9.6 %Edmonson County: 5.2 %Elliott County: 3.8 %Estill County: 3.3 %Fayette County: 19.8 %Fleming County: 5.4 %Floyd County: 5.2 %Franklin County: 11.9 %Fulton County: 3.5 %Gallatin County: 2.5 %Garrard County: 10.9 %Grant County: 5.9 %Graves County: 7.9 %Grayson County: 5 %Green County: 6 %Greenup County: 7.7 %Hancock County: 5.1 %Hardin County: 9.4 %Harlan County: 5.3 %Harrison County: 8.7 %Hart County: 4.1 %Henderson County: 7.2 %Henry County: 5.2 %Hickman County: 6 %Hopkins County: 7.2 %Jackson County: 3.1 %Jefferson County: 14.2 %Jessamine County: 12.9 %Johnson County: 7.5 %Kenton County: 13.1 %Knott County: 8.9 %Knox County: 7.5 %Larue County: 10.9 %Laurel County: 6.9 %Lawrence County: 5.3 %Lee County: 2.8 %Leslie County: 2.6 %Letcher County: 5.5 %Lewis County: 3.7 %Lincoln County: 6 %Livingston County: 5.9 %Logan County: 7.1 %Lyon County: 6.8 %McCracken County: 10.2 %McCreary County: 2.6 %McLean County: 6.2 %Madison County: 13.6 %Magoffin County: 6.6 %Marion County: 7.1 %Marshall County: 8.8 %Martin County: 3.2 %Mason County: 10.5 %Meade County: 7.4 %Menifee County: 3.4 %Mercer County: 9.1 %Metcalfe County: 5.8 %Monroe County: 9.4 %Montgomery County: 7.1 %Morgan County: 7.7 %Muhlenberg County: 5 %Nelson County: 8.4 %Nicholas County: 4.3 %Ohio County: 7.2 %Oldham County: 18.7 %Owen County: 4.4 %Owsley County: 4.5 %Pendleton County: 6.7 %Perry County: 8.4 %Pike County: 7.3 %Powell County: 6.1 %Pulaski County: 7.7 %Robertson County: 1.8 %Rockcastle County: 5.8 %Rowan County: 14.6 %Russell County: 7.5 %Scott County: 11.8 %Shelby County: 11.1 %Simpson County: 4.9 %Spencer County: 7.6 %Taylor County: 8.9 %Todd County: 6.8 %Trigg County: 7.6 %Trimble County: 5.6 %Union County: 3.9 %Warren County: 12.7 %Washington County: 9 %Wayne County: 6.1 %Webster County: 3.4 %Whitley County: 10.4 %Wolfe County: 4 %Woodford County: 16.2 %
  • Under 4.3
  • 4.3 to 5.7
  • 5.7 to 6.7
  • 6.7 to 7.7
  • 7.7 to 10
  • 10 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Fayette County: 19.8 %Fayette County19.8Oldham County: 18.7 %Oldham County18.7Woodford County: 16.2 %Woodford County16.2Rowan County: 14.6 %Rowan County14.6Campbell County: 14.3 %Campbell County14.3Calloway County: 14.3 %Calloway County14.3Jefferson County: 14.2 %Jefferson County14.2Madison County: 13.6 %Madison County13.6Kenton County: 13.1 %Kenton County13.1Jessamine County: 12.9 %Jessamine County12.9Warren County: 12.7 %Warren County12.7Boone County: 12.6 %Boone County12.6Franklin County: 11.9 %Franklin County11.9Scott County: 11.8 %Scott County11.8Boyle County: 11.4 %Boyle County11.4Shelby County: 11.1 %Shelby County11.1Garrard County: 10.9 %Garrard County10.9Larue County: 10.9 %Larue County10.9Mason County: 10.5 %Mason County10.5Bourbon County: 10.5 %Bourbon County10.5Whitley County: 10.4 %Whitley County10.4Adair County: 10.3 %Adair County10.3McCracken County: 10.2 %McCracken County10.2Breathitt County: 9.7 %Breathitt County9.7Daviess County: 9.6 %Daviess County9.6Hardin County: 9.4 %Hardin County9.4Monroe County: 9.4 %Monroe County9.4Anderson County: 9.2 %Anderson County9.2Mercer County: 9.1 %Mercer County9.1Boyd County: 9 %Boyd County9Washington County: 9 %Washington County9Knott County: 8.9 %Knott County8.9Taylor County: 8.9 %Taylor County8.9Marshall County: 8.8 %Marshall County8.8Harrison County: 8.7 %Harrison County8.7Perry County: 8.4 %Perry County8.4Nelson County: 8.4 %Nelson County8.4Caldwell County: 8.2 %Caldwell County8.2Graves County: 7.9 %Graves County7.9Morgan County: 7.7 %Morgan County7.7Fayette County: 19.8 %Fayette County19.8Oldham County: 18.7 %Oldham County18.7Woodford County: 16.2 %Woodford County16.2Rowan County: 14.6 %Rowan County14.6Campbell County: 14.3 %Campbell County14.3Calloway County: 14.3 %Calloway County14.3Jefferson County: 14.2 %Jefferson County14.2Madison County: 13.6 %Madison County13.6Kenton County: 13.1 %Kenton County13.1Jessamine County: 12.9 %Jessamine County12.9Warren County: 12.7 %Warren County12.7Boone County: 12.6 %Boone County12.6Franklin County: 11.9 %Franklin County11.9Scott County: 11.8 %Scott County11.8Boyle County: 11.4 %Boyle County11.4Shelby County: 11.1 %Shelby County11.1Garrard County: 10.9 %Garrard County10.9Larue County: 10.9 %Larue County10.9Mason County: 10.5 %Mason County10.5Bourbon County: 10.5 %Bourbon County10.5Whitley County: 10.4 %Whitley County10.4Adair County: 10.3 %Adair County10.3McCracken County: 10.2 %McCracken County10.2Breathitt County: 9.7 %Breathitt County9.7Daviess County: 9.6 %Daviess County9.6Hardin County: 9.4 %Hardin County9.4Monroe County: 9.4 %Monroe County9.4Anderson County: 9.2 %Anderson County9.2Mercer County: 9.1 %Mercer County9.1Boyd County: 9 %Boyd County9Washington County: 9 %Washington County9Knott County: 8.9 %Knott County8.9Taylor County: 8.9 %Taylor County8.9Marshall County: 8.8 %Marshall County8.8Harrison County: 8.7 %Harrison County8.7Perry County: 8.4 %Perry County8.4Nelson County: 8.4 %Nelson County8.4Caldwell County: 8.2 %Caldwell County8.2Graves County: 7.9 %Graves County7.9Morgan County: 7.7 %Morgan County7.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Fayette County19.8
2Oldham County18.7
3Woodford County16.2
4Rowan County14.6
5Campbell County14.3
6Calloway County14.3
7Jefferson County14.2
8Madison County13.6
9Kenton County13.1
10Jessamine County12.9
11Warren County12.7
12Boone County12.6
13Franklin County11.9
14Scott County11.8
15Boyle County11.4
16Shelby County11.1
17Garrard County10.9
17Larue County10.9
19Mason County10.5
20Bourbon County10.5
21Whitley County10.4
22Adair County10.3
23McCracken County10.2
24Breathitt County9.7
25Daviess County9.6
26Hardin County9.4
27Monroe County9.4
28Anderson County9.2
29Mercer County9.1
30Boyd County9
31Washington County9
32Knott County8.9
33Taylor County8.9
34Marshall County8.8
35Harrison County8.7
36Perry County8.4
37Nelson County8.4
38Caldwell County8.2
39Graves County7.9
40Morgan County7.7
41Greenup County7.7
42Pulaski County7.7
43Spencer County7.6
44Trigg County7.6
45Johnson County7.5
46Russell County7.5
47Clark County7.5
47Knox County7.5
49Meade County7.4
50Pike County7.3
51Henderson County7.2
52Hopkins County7.2
53Ohio County7.2
54Marion County7.1
55Logan County7.1
55Montgomery County7.1
57Butler County7
58Laurel County6.9
59Lyon County6.8
60Todd County6.8
61Pendleton County6.7
62Magoffin County6.6
63Allen County6.5
64Clinton County6.5
65Barren County6.4
66Christian County6.4
67McLean County6.2
68Bracken County6.2
69Bath County6.2
70Powell County6.1
70Wayne County6.1
72Hickman County6
73Lincoln County6
74Green County6
75Grant County5.9
76Breckinridge County5.9
76Livingston County5.9
78Rockcastle County5.8
79Casey County5.8
80Metcalfe County5.8
81Bullitt County5.6
82Clay County5.6
83Carter County5.6
84Trimble County5.6
85Letcher County5.5
86Fleming County5.4
87Ballard County5.4
88Lawrence County5.3
89Harlan County5.3
90Floyd County5.2
91Edmonson County5.2
92Henry County5.2
93Hancock County5.1
94Muhlenberg County5
95Grayson County5
96Simpson County4.9
97Crittenden County4.8
98Cumberland County4.7
99Owsley County4.5
100Owen County4.4
101Nicholas County4.3
102Bell County4.3
103Carlisle County4.2
104Hart County4.1
105Wolfe County4
106Union County3.9
107Elliott County3.8
108Lewis County3.7
109Fulton County3.5
110Webster County3.4
111Menifee County3.4
112Estill County3.3
113Martin County3.2
114Jackson County3.1
115Lee County2.8
116McCreary County2.6
117Leslie County2.6
118Gallatin County2.5
119Carroll County2.4
120Robertson County1.8

Other periods

About this ranking

People aged 25 and over whose highest degree is a master's, professional school or doctorate degree, as a percentage of all people aged 25 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

A subset of bachelors_degree_share, which also counts people whose highest degree is a bachelor's.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs (Counties in Kentucky by graduate or professional degree, population 25 and over, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat

MLA 9

American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Kentucky by graduate or professional degree, population 25 and over, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Invokely, https://invokely.ai/rankings/graduate-or-professional-degree/kentucky-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs. Counties in Kentucky by graduate or professional degree, population 25 and over, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Also distributed by Invokely, https://invokely.ai/rankings/graduate-or-professional-degree/kentucky-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Kentucky by graduate or professional degree, population 25 and over, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat, via Invokely: https://invokely.ai/rankings/graduate-or-professional-degree/kentucky-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_kentucky_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Kentucky by graduate or professional degree, population 25 and over, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/graduate-or-professional-degree/kentucky-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Kentucky by graduate or professional degree, population 25 and over, 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat
L2  - https://invokely.ai/rankings/graduate-or-professional-degree/kentucky-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/graduate-or-professional-degree/kentucky-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest graduate or professional degree, population 25 and over?

Fayette County, with 19.8% in 2021, according to the U.S. Census Bureau.

Which county has the lowest graduate or professional degree, population 25 and over?

Robertson County, with 1.8% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs. Retrieved 2026-10-12.

Graduate or professional degree, population 25 and over: other rankings

Counties in Kentucky: more rankings