Each Monday, the Bureau of Transportation Statistics (BTS) posts mobility data for the nation, states, and counties. The data tool answers questions such as: How many people are staying at home during the COVID-19 pandemic? How far are people traveling when they don’t stay home? Which states and counties have more people taking trips?
Data are available in interactive maps and graphs and through data download.
The Trips by Distance data and Number of People Staying Home and Not Staying Home are estimated for BTS by the Maryland Transportation Institute (MTI) and the Center for Advanced Transportation Technology Laboratory (CATT Lab) at the University of Maryland.
Data in the charts and graphs above is updated weekly on Mondays. The data lags one week behind the current date.
The travel statistics are produced from an anonymized national panel of mobile device data from multiple sources. All data sources used in the creation of the metrics contain no personal information.
Data analysis is conducted at the aggregate national, state, and county levels. A weighting procedure expands the sample of millions of mobile devices, so the results are representative of the entire population in a nation, state, or county. To assure confidentiality and support data quality, no data are reported for a county if it has fewer than 50 devices in the sample on any given day.
Trips are defined as movements that include a stay of longer than 10 minutes at an anonymized location away from home. A movement with multiple stays of longer than 10 minutes before returning home is counted as multiple trips.