Jacumba Hot Springs (/həˈkuːmbə/ hə-KOOM-bə) is an unincorporated community in the Mountain Empire area of southeastern San Diego County, California, United States. For statistical purposes, the United States Census Bureau defined Jacumba Hot Springs as a census-designated place (CDP) for the first time in the 2010 census, with a population of 561. The census definition of the area may not precisely correspond to local understanding of the area with the same name. The ZIP code is 91934 and the town lies within area code 619. Its elevation is 2,829 feet (862 m) above mean sea level (AMSL). On Feb. 26, 2013, the Federal Geographic Names Commission approved a petition by a citizen committee to change the town’s name from Jacumba to Jacumba Hot Springs.
The town is in a valley in the Jacumba Mountains at an altitude of 2,800 feet (850 m). The area is dry with an annual average rainfall of 11.8 inches (300 mm). It is served by Old Highway 80; Interstate 8 bypasses the town at a distance of two miles (3 km). The town is located in the Pacific time zone (GMT -08:00).
Jacumba Hot Springs is located on the Mexican border. A small settlement exists on the Mexican side, known as Jacume; the unmanned crossing was closed in 1995. The new, enlarged border fence now runs through the area. The United States Border Patrol maintains an increased presence in the area to curtail smuggling and illegal immigration.
According to the United States Census Bureau, the CDP covers an area of 6.1 square miles (15.9 km²), 99.88% of it land, and 0.12% of it water.
The 2010 United States Census reported that Jacumba had a population of 561. The population density was 91.6 people per square mile (35.4/km²). The racial makeup of Jacumba was 389 (69.3%) White 322 (57.4%) non-Hispanic White), 4 (0.7%) African American, 15 (2.7%) Native American, 6 (1.1%) Asian, 0 (0.0%) Pacific Islander, 114 (20.3%) from other races, and 33 (5.9%) from two or more races. Hispanic or Latino of any race were 207 persons (36.9%).
The Census reported that 561 people (100% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.
There were 216 households, out of which 66 (30.6%) had children under the age of 18 living in them, 87 (40.3%) were opposite-sex married couples living together, 29 (13.4%) had a female householder with no husband present, 12 (5.6%) had a male householder with no wife present. There were 21 (9.7%) unmarried opposite-sex partnerships, and 0 (0%) same-sex married couples or partnerships. 72 households (33.3%) were made up of individuals and 24 (11.1%) had someone living alone who was 65 years of age or older. The average household size was 2.60. There were 128 families (59.3% of all households); the average family size was 3.38.
The population was spread out with 141 people (25.1%) under the age of 18, 46 people (8.2%) aged 18 to 24, 128 people (22.8%) aged 25 to 44, 167 people (29.8%) aged 45 to 64, and 79 people (14.1%) who were 65 years of age or older. The median age was 39.9 years. For every 100 females, there were 101.8 males. For every 100 females age 18 and over, there were 102.9 males.
There were 294 housing units at an average density of 48.0 per square mile (18.5/km²), of which 123 (56.9%) were owner-occupied, and 93 (43.1%) were occupied by renters. The homeowner vacancy rate was 7.4%; the rental vacancy rate was 7.9%. 288 people (51.3% of the population) lived in owner-occupied housing units and 273 people (48.7%) lived in rental housing units.