Timonium /ˌtɪˈmoʊniːəm/ is a census-designated place (CDP) in Baltimore County, Maryland, United States. As of the 2020 census, it has a population of 10,458. Prior to 2010 the area was part of the Lutherville-Timonium CDP.

The Maryland State Fair is held in Timonium each year near Labor Day on the grounds of the former Timonium Race Course, which is an important site along with Pimlico Race Course in northwest Baltimore and Laurel Park in Prince George's County, along with other former tracks at Bowie and Rosecroft in Maryland thoroughbred horse racing traditions.

Etymology

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.

Geography

Timonium is at 39°26′26″N 76°37′34″W/39.44056°N 76.62611°W/ 39.44056; -76.62611 (39.4441, −76.6076). According to the United States Census Bureau, the CDP has a total area of 5.4 square miles (13.9 km2), all land.

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 (64 cm) and average annual rainfall is 42 inches (107 cm).

Demographics

Historical population
CensusPop.Note%±
196012,265—
197024,05596.1%
198017,854−25.8%
199016,442−7.9%
200015,814−3.8%
20109,925−37.2%
202010,4585.4%
Separated from Lutherville-Timonium CDP in 2010 Census

Timonium first appeared as a census designated place in the 2010 U.S. census after the Lutherville-Timonium CDP was split into the Timonium CDP and the Lutherville CDP.

2020 census

Timonium CDP, Maryland – Racial and ethnic compositionNote: 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.
Race / Ethnicity (NH = Non-Hispanic)Pop 2010Pop 2020% 2010% 2020
White alone (NH)8,3607,97884.23%76.29%
Black or African American alone (NH)3335213.36%4.98%
Native American or Alaska Native alone (NH)480.04%0.08%
Asian alone (NH)7681,0657.74%10.18%
Native Hawaiian or Pacific Islander alone (NH)400.04%0.00%
Other race alone (NH)16240.16%0.23%
Mixed race or Multiracial (NH)1463411.47%3.26%
Hispanic or Latino (any race)2945212.96%4.98%
Total9,92510,458100.00%100.00%

Transportation

Timonium Fairgrounds station
Baltimore and Susquehanna Railroad historical marker, Timonium light rail station

Roads

Major roads in the Timonium area include:

Public transportation

The Maryland Transit Administration's light rail line has two stops in the Timonium area: Timonium and Fairgrounds. In addition, bus routes 8 and 9 provide regular service along the York Road corridor.

Notable people

Education

Public schools