Timonium takes its name from the Timonium Mansion, the home of Mrs. Archibald Buchanan, who, in melancholia due to the loss of eyesight and the death of a close friend, felt her life was like that of Mark Antony after the Battle of Actium. The original Timonium was an incomplete palace Mark Antony built on the island of Antirhodos in the harbor of Alexandria, Egypt. Antony died by suicide at the palace after receiving a false report that Cleopatra had died by suicide.[3]
The town is north of Baltimore along York Road (Maryland Route 45). It is bordered on the north by Cockeysville, on the south by Lutherville, on the east by Loch Raven Reservoir, and on the west by Falls Road (Maryland Route 25), with the Greenspring and Worthington Valleys beyond. Ridgely Road forms the boundary between Timonium and Lutherville, while Padonia Road separates Timonium from Cockeysville.
Timonium is in the Piedmont region of the United States, and is in the transition zone between the Humid subtropical climate zone to the south and the humid continental climate to the north, with hot and humid summers leading into winters that are cold but not extreme by American standards. The average annual snowfall is 25 inches (64cm) and average annual rainfall is 42 inches (107cm).
Timonium CDP, Maryland – Racial and ethnic composition Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
As of the 2020 census, Timonium had a population of 10,458. The median age was 47.9 years. 19.6% of residents were under the age of 18 and 28.1% of residents were 65 years of age or older. For every 100 females there were 86.2 males, and for every 100 females age 18 and over there were 82.8 males age 18 and over.[9][10]
99.2% of residents lived in urban areas, while 0.8% lived in rural areas.[11]
There were 3,735 households in Timonium, of which 30.7% had children under the age of 18 living in them. Of all households, 57.8% were married-couple households, 13.1% were households with a male householder and no spouse or partner present, and 24.7% were households with a female householder and no spouse or partner present. About 24.3% of all households were made up of individuals and 14.0% had someone living alone who was 65 years of age or older.[9]
There were 3,932 housing units, of which 5.0% were vacant. The homeowner vacancy rate was 1.1% and the rental vacancy rate was 9.3%.[9]
Robert Ehrlich, 60th Governor of Maryland. He was a resident of Timonium while serving in Congress as a Representative in the House of Representatives (although raised in Arbutus which he often cited).[13]
Jim Gentile (born 1934), former Baltimore Orioles first baseman.