About this application: This application provides summary profiles showing frequently requested data items from various US Census Bureau programs. Profiles are available for the nation, states, and counties.
Bachelor's degree or higher, percent of persons age 25 years+, 2014-2018 - (Percent)
County
Value
Adams
24.8
Alexander
11.3
Bond
21.8
Boone
23.2
Brown
13.7
Bureau
19.7
Calhoun
13.6
Carroll
18.1
Cass
14.6
Champaign
44.4
Christian
16.6
Clark
17.6
Clay
15.2
Clinton
22.5
Coles
25.6
Cook
38.0
Crawford
16.6
Cumberland
15.8
De Witt
21.3
DeKalb
31.4
Douglas
19.0
DuPage
48.8
Edgar
16.7
Edwards
13.9
Effingham
22.5
Fayette
11.7
Ford
20.2
Franklin
15.9
Fulton
17.6
Gallatin
9.9
Greene
12.4
Grundy
23.6
Hamilton
18.3
Hancock
21.3
Hardin
11.2
Henderson
15.4
Henry
22.6
Iroquois
15.4
Jackson
36.0
Jasper
17.5
Jefferson
17.4
Jersey
20.5
Jo Daviess
23.8
Johnson
16.5
Kane
33.1
Kankakee
21.0
Kendall
35.4
Knox
18.5
Lake
45.0
LaSalle
17.9
Lawrence
13.5
Lee
17.7
Livingston
15.7
Logan
20.4
Macon
22.5
Macoupin
19.4
Madison
25.8
Marion
15.0
Marshall
16.8
Mason
15.4
Massac
13.2
McDonough
32.4
McHenry
33.7
McLean
44.8
Menard
23.1
Mercer
17.8
Monroe
32.5
Montgomery
15.6
Morgan
19.9
Moultrie
19.5
Ogle
20.0
Peoria
30.4
Perry
11.7
Piatt
27.9
Pike
15.1
Pope
13.4
Pulaski
12.3
Putnam
14.6
Randolph
12.8
Richland
21.3
Rock Island
23.2
Saline
17.8
Sangamon
34.2
Schuyler
18.2
Scott
15.0
Shelby
16.9
St. Clair
27.3
Stark
17.5
Stephenson
19.3
Tazewell
26.4
Union
22.8
Vermilion
15.1
Wabash
17.2
Warren
23.0
Washington
20.6
Wayne
14.6
White
15.2
Whiteside
18.5
Will
34.0
Williamson
22.6
Winnebago
22.6
Woodford
31.6
Value for Illinois (Percent): 34.1%
Data item: Bachelor's degree or higher, percent of persons age 25 years+, 2014-2018
Sources: U.S. Census Bureau, American Community Survey (ACS) and Puerto Rico Community Survey (PRCS), 5-Year Estimates. The PRCS is part of the Census Bureau's ACS, customized for Puerto Rico. Both Surveys are updated every year.
Definition
High School Graduates include people whose highest degree was a high school diploma or its equivalent, people who attended college but did not receive a degree, and people who received an associate's, bachelor's, master's, or professional or doctorate degree. People who reported completing the 12th grade but not receiving a diploma are not included. Persons with a Bachelor's Degree or Higher are those who have received a bachelor's degree from a college or university, or a master's, professional, or doctorate degree. For the complete definition, go to ACS subject definitions "Educational Attainment."
These data include only persons 25 years old and over. The percentages are obtained by dividing the counts of graduates by the total number of persons 25 years old and over.
Source and Accuracy
This Fact is based on data collected in the American Community Survey (ACS) and the Puerto Rico Community Survey (PRCS) conducted annually by the U.S. Census Bureau. A sample of over 3.5 million housing unit addresses is interviewed each year over a 12 month period. This Fact (estimate) is based on five years of ACS and PRCS sample data and describes the average value of person, household and housing unit characteristics over this period of collection.
Statistics from all surveys are subject to sampling and nonsampling error. Sampling error is the uncertainty between an estimate based on a sample and the corresponding value that would be obtained if the estimate were based on the entire population (as from a census). Measures of sampling error are provided in the form of margins of error for all estimates included with ACS and PRCS published products. The Census Bureau recommends that data users incorporate this information into their analyses, as sampling error in survey estimates could impact the conclusions drawn from the results. The data for each geographic area are presented together with margins of error at Using margins of error. A more detailed explanation of margins of error and a demonstration of how to use them is provided below.
For more information on sampling and estimation methodology, confidentiality, and sampling and nonsampling errors, please see the Multiyear Accuracy (US) and the Multiyear Accuracy (Puerto Rico) documents at "Documentation - Accuracy of the data."
Margin of Error
As mentioned above, ACS estimates are based on a sample and are subject to sampling error. The margin of error measures the degree of uncertainty caused by sampling error. The margin of error is used with an ACS estimate to construct a confidence interval about the estimate. The interval is formed by adding the margin of error to the estimate (the upper bound) and subtracting the margin of error from the estimate (the lower bound). It is expected with 90 percent confidence that the interval will contain the full population value of the estimate. The following example is for demonstrating purposes only. Suppose the ACS reported that the percentage of people in a state who were 25 years and older with a bachelor's degree was 21.3 percent and that the margin of error associated with this estimate was 0.7 percent. By adding and subtracting the margin of error from the estimate, we calculate the 90-percent confidence interval for this estimate:
Therefore, we can be 90 percent confident that the percent of the population 25 years and older having a bachelor's degree in a state falls somewhere between 20.6 percent and 22.0 percent.
