Westmorland is on State Route 86, which was upgraded to a new six-lane highway to reduce its infamous auto accident and fatality risk, while it connects with Brawley, El Centro and Mexicali, Baja California, Mexico.

The post office, originally called Westmoreland, opened in 1909; it closed in 1912 and re-opened in 1919.

[5] From the 1920s through the 1950s Westmorland was the site of illegal gaming establishments and many brothels, but these were later destroyed in an attempt to improve the town's image.[when?]

Westmorland has dealt with the image of high poverty rates, and prior to the 1990s North American Free Trade Agreement (NAFTA) economic boom, a nearly dormant farm food shipping industry.

According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.0 km2), all land.

The 1987 Superstition Hills event caused serious damage in Westmorland and the Imperial Valley.

There were 678 housing units at an average density of 1,148.7 per square mile (443.5/km2),of which 631 were occupied, 299 (47.4%) by the owners and 332 (52.6%) by renters.

[10] Federally, Westmorland is in California's 25th congressional district, represented by Democrat Raul Ruiz.

[11] Westmorland children (grades K-8) are part of the Westmorland Elementary School District, while high-school age students are members of the neighboring Brawley Union High School District.

Westmorland has one of the smallest police departments in California, with a chief and five full-time officers with only five patrol cars.

The city's public works department operates its own water and wastewater system.