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.
Mean travel time to work (minutes), workers age 16 years+, 2014-2018 - (Minutes)
County
Value
Adams
17.1
Alexander
29.4
Bond
24.0
Boone
28.6
Brown
16.7
Bureau
21.2
Calhoun
39.3
Carroll
25.3
Cass
19.9
Champaign
17.8
Christian
24.7
Clark
23.1
Clay
21.5
Clinton
25.4
Coles
16.6
Cook
33.3
Crawford
15.9
Cumberland
22.2
De Witt
21.3
DeKalb
25.8
Douglas
20.6
DuPage
29.6
Edgar
19.9
Edwards
21.6
Effingham
17.1
Fayette
22.3
Ford
22.4
Franklin
25.1
Fulton
25.2
Gallatin
27.6
Greene
28.1
Grundy
29.1
Hamilton
28.0
Hancock
24.8
Hardin
28.8
Henderson
25.2
Henry
23.0
Iroquois
23.7
Jackson
19.2
Jasper
22.8
Jefferson
19.5
Jersey
28.3
Jo Daviess
22.2
Johnson
26.6
Kane
28.9
Kankakee
24.4
Kendall
33.7
Knox
18.0
Lake
30.4
LaSalle
22.7
Lawrence
19.1
Lee
21.8
Livingston
19.7
Logan
21.0
Macon
18.1
Macoupin
27.4
Madison
25.3
Marion
20.2
Marshall
28.1
Mason
26.5
Massac
21.7
McDonough
16.5
McHenry
33.6
McLean
18.0
Menard
28.6
Mercer
26.8
Monroe
29.2
Montgomery
24.0
Morgan
20.5
Moultrie
22.6
Ogle
26.1
Peoria
18.7
Perry
24.3
Piatt
22.9
Pike
25.5
Pope
35.2
Pulaski
25.8
Putnam
24.7
Randolph
25.5
Richland
20.0
Rock Island
19.1
Saline
23.1
Sangamon
19.6
Schuyler
22.8
Scott
25.7
Shelby
24.0
St. Clair
25.1
Stark
25.3
Stephenson
21.8
Tazewell
21.3
Union
24.8
Vermilion
19.7
Wabash
20.4
Warren
19.1
Washington
25.0
Wayne
24.3
White
25.2
Whiteside
19.4
Will
33.2
Williamson
22.1
Winnebago
22.3
Woodford
22.6
Value for Illinois (Minutes): 29.0
Data item: Mean travel time to work (minutes), workers age 16 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
Travel time to work refers to the total number of minutes that it usually took the person to get from home to work each day during the reference week. The elapsed time includes time spent waiting for public transportation, picking up passengers in carpools, and time spent in other activities related to getting to work.
Mean travel time to work is obtained by dividing the total number of minutes by the number of workers 16 years old and over who did not work at home. Mean travel time to work is rounded to the nearest tenth of a minute. For the complete definition, go to ACS subject definitions "Travel Time to Work."
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.
