population) lived in households, 31 (0.5%) lived in non-institutionalized group quarters, and zero (0%) were institutionalized. There were 2,176 households, out of which 685 (31.5%) had children under the age of 18 living in them, 954 (43.8%) were opposite-sex married couples living together, 280 (12.9%) had a female householder with no husband present, 157 (7.2%) had a male householder with no wife present. There were 146 (6.7%) unmarried opposite-sex partnerships, and 14 (0.6%) same-sex married couples or partnerships. Sole individuals occupied 632 households (29.0%) and 255 (11.7%) had someone living alone who was 65 years of age or older. The average household size was 2.66. There were 1,391 families (63.9% of all households); the average family size was 3.28. The population was spread out, with 1,424 people (24.5%) under the age of 18, 452 people (7.8%) aged 18 to 24, 1,214 people (20.9%) aged 25 to 44, 1,780 people (30.6%) aged 45 to 64, and 941 people (16.2%) who were 65 years of age or older. The median age was 42.7 years. For every 100 females, there were 106.1 males. For every 100 females age 18 and over, there were 105.4 males. There were 2,949 housing units at an average density of , of which 1,454 (66.8%) were owner-occupied, and 722 (33.2%) were occupied by renters. The homeowner vacancy rate was 4.3%; the rental vacancy rate was 9.0%. Three thousand eight hundred people (65.4% of the population) lived in owner-occupied housing units and 1,980 people (34.1%) lived in rental housing units. According to the 2010 United States Census, Lucerne Valley had a median household income of $30,142, with 18.4% of the population living below the federal poverty line. Development Zoning The majority of Lucerne Valley's zoning consists of Rural Residential, Resource Conservation and Residential zones. Industrial zoning is predominantly in the southern border of the community on the north-facing slopes of the San Bernardino Mountains. The commercial zoning corridor is primarily on State Route 18, with outlying businesses within a mile of the eastern half of the Old Woman Springs/Barstow Road junction. Commercial development is focused on mixed-use development, with storefronts facing the highway and a private residence on the same property behind the business on the same lot. Traditional retail construction has been restrained in the latter half of the 20th century to keep the rural character of the town intact, but in September 2015 a Dollar General store