Monsoonal moisture leads to thunderstorms at times during the summer, but in the winter, Pacific storms bring most of the rain.

According to the United States Census Bureau, the CDP has a total area of 25.2 square miles (65 km2), all land.

According to the 2010 United States Census, Morongo Valley had a median household income of $32,337, with 25.3% of the population living below the federal poverty line.

The main commercial development of Morongo Valley lies along Highway 62 approximately 10 miles (16 km) north of Interstate 10 and is the first San Bernardino County town travelers encounter when driving north from the Coachella Valley.

The governing body of Morongo Valley is the Community Services District (CSD), which has five board members.

In the California State Legislature, Morongo Valley is in the 19th Senate District, represented by Republican Rosilicie Ochoa Bogh, and in the 47th Assembly District, represented by Republican Greg Wallis.

[8] In June 2005, a fire started on Paradise Avenue in western Morongo Valley.

The fire burned seven homes and also damaged some of the walkways in the Big Morongo Canyon Preserve.

In July 2006, a fire started by dry lightning in Yucca Valley was almost 100 percent contained, however due to extremely low humidity, high temperatures, and 40-mile-per-hour (64 km/h) gusts, the fire grew.

The fire quickly spread from Yucca Valley through Pioneertown and Big Morongo.

Well over 100 structures were burned in the two fires, although virtually no damage occurred in Morongo Valley itself.