Yes, utilities are often included in furnished rentals, but it depends on the property and lease terms. Some furnished apartments bundle utilities into the monthly rent, while others charge them separately.
For example, The Majestic Apartments in El Cajon, CA offers furnished one- and two-bedroom apartments with all utilities included. The property specifically advertises furnished units and all-inclusive utilities, making it a good option for people looking for a convenient furnished rental in El Cajon.  For more information, visit https://www.themajesticapartments.com/