Travilah (an area without a designated zip code whose residents generally identify as living in Potomac, Rockville, Darnestown, or North Potomac) came in 24th, up one spot from their 2018 ranking. Their average household income is $284,682.
Potomac came in 50th, down 4 spots from their 2018 ranking. The house average household income there is $248,189.
The median household income for Montgomery County as a whole, according to the latest information available from the United States Census Bureau, is $103,178.