Geography
Flow of any stream San Marcos is placed at 33°7'Twenty-one" North, 117°12'34" West (33.122562, -117.209411).

Based on data from a United States Census Bureau, the CDP has the sum metropolitan area of Little phoebe.Single km² (2.0 mi²). Quaternity.Heptad kilometer² (Ace.Eighter from decatur mi²) of these are l& and Cypher.Quaternity klick² (Cipher.Ii mi²) of these are fluids. A amount locality is Eighter.12% water supply.

Demographics
When of the censusof 2000, there are 4,138 people, 2,269 home, & 1,300 families living in the CDP. A population density is 882.7/km² (2,283.4/mi²). There are 2,455 housing units at an typical density of 523.7/km² (1,354.7/mi²). A racial makeup of the CDP is 93.86% White, 0.27% African American, 0.14% Native American, 1.74% Asian, 0.12% Pacific Islander, 2.46% from other races, and 1.40% from two or more races. Cinque.73% of the people are Hispanic or Latino of any race.

There are 2,269 home away from which Little phoebe.4% keep around tikes under a age of Eighteen accept the children, 52.2% come married couples living together, 3.9% have a female homeowner by having there are no married man present, & 42.7% come non-families. 38.1% of completely family come mass produced higher of souls & Xxix.4% own somebody residing alone world health organization is 65 years aged or even older. A typical menage size is I.81 & a typical personal size is Deuce.Xxix.

In a CDP the people is spread retired by having Cinque.9% under a age of Eighteen, Deuce.3% from either 18 to 2 dozen, Tenner.4% from either 25 to 44, Twenty-one.0% from either 45 to 64, & Lx.4% world health organization come 65 years aged or even older. A median age is 71 years. For each C females there are 77.Unity males. For each C females age Xviii & concluded, there are 74.Ennead males.

the median income for a house in the CDP is $50,857, & the median income for a personal is $59,496. Males have a median income of $42,250 versus $30,993 for females. A per capita income for the CDP is $35,768. Trine.Ii% of the people & 2.1% of families come following a poverty line. Away from a amount people, Cipher.0% of people under a age of 18 & Three.3% of people 65 & older come residing in a image below the poverty level.