Data / Rankings / High school graduate or higher, population 25 and over / Counties in Oregon

Counties in Oregon by high school graduate or higher, population 25 and over

Benton County had the highest high school graduate or higher, population 25 and over of 36 counties in 2021, at 96.3%. Morrow County had the lowest, at 77.5%. The median was 90.7% and the figure for Oregon was 91.5%. Source: the U.S. Census Bureau.

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Highest96.3Benton County
Lowest77.5Morrow County
Median90.736 counties
Oregon91.5History

Map of counties, 2021

Baker County: 90.8 %Benton County: 96.3 %Clackamas County: 94.3 %Clatsop County: 92.1 %Columbia County: 90.5 %Coos County: 90 %Crook County: 90.8 %Curry County: 91.9 %Deschutes County: 94.3 %Douglas County: 90.5 %Gilliam County: 93.4 %Grant County: 90.5 %Harney County: 90.7 %Hood River County: 83.3 %Jackson County: 90.9 %Jefferson County: 87.8 %Josephine County: 90.8 %Klamath County: 88.4 %Lake County: 86.1 %Lane County: 92.9 %Lincoln County: 92.7 %Linn County: 90.2 %Malheur County: 81.5 %Marion County: 85.7 %Morrow County: 77.5 %Multnomah County: 92.4 %Polk County: 91.6 %Sherman County: 87.3 %Tillamook County: 90.7 %Umatilla County: 83.2 %Union County: 92.8 %Wallowa County: 94 %Wasco County: 87 %Washington County: 93 %Wheeler County: 89.6 %Yamhill County: 90.1 %
  • Under 87
  • 87 to 90
  • 90 to 91
  • 91 to 92
  • 92 to 93
  • 93 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Benton County: 96.3 %Benton County96.3Clackamas County: 94.3 %Clackamas County94.3Deschutes County: 94.3 %Deschutes County94.3Wallowa County: 94 %Wallowa County94Gilliam County: 93.4 %Gilliam County93.4Washington County: 93 %Washington County93Lane County: 92.9 %Lane County92.9Union County: 92.8 %Union County92.8Lincoln County: 92.7 %Lincoln County92.7Multnomah County: 92.4 %Multnomah County92.4Clatsop County: 92.1 %Clatsop County92.1Curry County: 91.9 %Curry County91.9Polk County: 91.6 %Polk County91.6Jackson County: 90.9 %Jackson County90.9Crook County: 90.8 %Crook County90.8Josephine County: 90.8 %Josephine County90.8Baker County: 90.8 %Baker County90.8Harney County: 90.7 %Harney County90.7Tillamook County: 90.7 %Tillamook County90.7Douglas County: 90.5 %Douglas County90.5Grant County: 90.5 %Grant County90.5Columbia County: 90.5 %Columbia County90.5Linn County: 90.2 %Linn County90.2Yamhill County: 90.1 %Yamhill County90.1Coos County: 90 %Coos County90Wheeler County: 89.6 %Wheeler County89.6Klamath County: 88.4 %Klamath County88.4Jefferson County: 87.8 %Jefferson County87.8Sherman County: 87.3 %Sherman County87.3Wasco County: 87 %Wasco County87Lake County: 86.1 %Lake County86.1Marion County: 85.7 %Marion County85.7Hood River County: 83.3 %Hood River County83.3Umatilla County: 83.2 %Umatilla County83.2Malheur County: 81.5 %Malheur County81.5Morrow County: 77.5 %Morrow County77.5Benton County: 96.3 %Benton County96.3Clackamas County: 94.3 %Clackamas County94.3Deschutes County: 94.3 %Deschutes County94.3Wallowa County: 94 %Wallowa County94Gilliam County: 93.4 %Gilliam County93.4Washington County: 93 %Washington County93Lane County: 92.9 %Lane County92.9Union County: 92.8 %Union County92.8Lincoln County: 92.7 %Lincoln County92.7Multnomah County: 92.4 %Multnomah County92.4Clatsop County: 92.1 %Clatsop County92.1Curry County: 91.9 %Curry County91.9Polk County: 91.6 %Polk County91.6Jackson County: 90.9 %Jackson County90.9Crook County: 90.8 %Crook County90.8Josephine County: 90.8 %Josephine County90.8Baker County: 90.8 %Baker County90.8Harney County: 90.7 %Harney County90.7Tillamook County: 90.7 %Tillamook County90.7Douglas County: 90.5 %Douglas County90.5Grant County: 90.5 %Grant County90.5Columbia County: 90.5 %Columbia County90.5Linn County: 90.2 %Linn County90.2Yamhill County: 90.1 %Yamhill County90.1Coos County: 90 %Coos County90Wheeler County: 89.6 %Wheeler County89.6Klamath County: 88.4 %Klamath County88.4Jefferson County: 87.8 %Jefferson County87.8Sherman County: 87.3 %Sherman County87.3Wasco County: 87 %Wasco County87Lake County: 86.1 %Lake County86.1Marion County: 85.7 %Marion County85.7Hood River County: 83.3 %Hood River County83.3Umatilla County: 83.2 %Umatilla County83.2Malheur County: 81.5 %Malheur County81.5Morrow County: 77.5 %Morrow County77.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Benton County96.3
2Clackamas County94.3
3Deschutes County94.3
4Wallowa County94
5Gilliam County93.4
6Washington County93
7Lane County92.9
8Union County92.8
9Lincoln County92.7
10Multnomah County92.4
11Clatsop County92.1
12Curry County91.9
13Polk County91.6
14Jackson County90.9
15Crook County90.8
16Josephine County90.8
17Baker County90.8
18Harney County90.7
19Tillamook County90.7
20Douglas County90.5
20Grant County90.5
22Columbia County90.5
23Linn County90.2
24Yamhill County90.1
25Coos County90
26Wheeler County89.6
27Klamath County88.4
28Jefferson County87.8
29Sherman County87.3
30Wasco County87
31Lake County86.1
32Marion County85.7
33Hood River County83.3
34Umatilla County83.2
35Malheur County81.5
36Morrow County77.5

Other periods

About this ranking

People aged 25 and over who hold a regular high school diploma, a GED or alternative credential, or any higher level of education, 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.

Measures the adult population, not students: it is not the high school graduation rate of a class. Not comparable with the EU share below upper secondary education, which covers ages 25 to 64.

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 high school diploma, GED or higher 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 high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs (Counties in Oregon by high school graduate or higher, 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 high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Oregon by high school graduate or higher, 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/high-school-graduate-or-higher/oregon-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 high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Counties in Oregon by high school graduate or higher, 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/high-school-graduate-or-higher/oregon-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Oregon by high school graduate or higher, 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/high-school-graduate-or-higher/oregon-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_oregon_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Oregon by high school graduate or higher, 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/high-school-graduate-or-higher/oregon-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher 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 high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Oregon by high school graduate or higher, 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/high-school-graduate-or-higher/oregon-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/oregon-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 high school diploma, GED or higher 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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Rank Counties in Oregon by high school graduate or higher, population 25 and over using official data, and cite the source.
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Questions

Which county has the highest high school graduate or higher, population 25 and over?

Benton County, with 96.3% in 2021, according to the U.S. Census Bureau.

Which county has the lowest high school graduate or higher, population 25 and over?

Morrow County, with 77.5% 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 high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Retrieved 2026-10-12.

High school graduate or higher, population 25 and over: other rankings

Counties in Oregon: more rankings