How much time do people spend indoors? Most people spend about 90% of their time indoors. By ProMatcher Staff Updated: 08/04/2016 Next Question Source: National Safety Council Next Question Find Local Pros Free Actuaries Cost Estimates Related Questions How many injuries involve vacuum cleaners? How Many Forklift Injuries Occur Each Year? How many people are killed by wood chippers? How many flooring-related injuries occur each year? How many home fires occur each year?