American Water Works Company, Inc. revenue for the last year amounted to 4.23 B USD, the most of which — 3.92 B USD — came from its highest performing source at the moment, Regulated Businesses, the year earlier bringing 3.50 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought American Water Works Company, Inc. 4.23 B USD, and the year before that — 3.79 B USD.