Monrovia is an unincorporated community and census-designated place (CDP) in Frederick County, in the U.S. state of Maryland.

It was received at the general store there, and the alcohol was dumped into Bush Creek, after which they had a funeral service with Elder Walker presiding.

According to the U.S. Census Bureau, the Monrovia CDP has a total area of 2.2 square miles (5.8 km2), all land.

In 1831, Monrovia became a station on the Baltimore and Ohio Railroad and provided service to the mills and access for travelers to New Market, MD.

[8] Monrovia was impacted by the Civil War with the Monrovia General Store, used as a dry goods store from the mid-nineteenth century until the early twentieth century, being sacked by Confederate troops after the Battle of Monocacy.

[9] During the Civil War, Monrovia also made the front page of the September 16, 1862 issue of The New York Herald: "We pushed on to Monrovia Station, on the line of the Baltimore and Ohio Railroad, on the way to New Market, and while passing through an incident occurred well worth relating.

In the child's hand was a small but very pretty American flag, which she was waving with all the ardor and enthusiasm of a youthful patriot.

The men cheered until they were husky, and most of the officers, as they passed, took off their caps and saluted the national emblem.

Upon conversing with the ladies I was informed that this was the only American flag that the rebels had left, and the reason for that was they could not find it.

The track closed for the final time on September 28, 2013, and was planned to be replaced by a housing development.