The Ewing Marion Kauffman Foundation prepares the Kauffman Index of Entrepreneurial Activity. According to the Foundation, “The Kauffman Index of Entrepreneurial Activity improves over other possible measures of entrepreneurship because of its timeliness, dynamic nature, inclusion of all types of business activity, exclusion of ‘casual’ businesses, and information on owner demographics.”
The following interactive visualization presents KIEA data. You may use the visualization below, or click here to open it in a new window, which may work better, as this is a large visualization. Use Ctrl+Click to add or remove states for comparison. Data is from Kauffman Index of Entrepreneurial Activity. Visualization created by myself using Tableau Public.