Santa Susana, California

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Santa Susana
census-designated place
Santa Susana is located in California
Santa Susana
Santa Susana
Position in California.
Coordinates: 34°15′29″N 118°39′59″W / 34.25806°N 118.66639°W / 34.25806; -118.66639Coordinates: 34°15′29″N 118°39′59″W / 34.25806°N 118.66639°W / 34.25806; -118.66639
Country  United States
State  California
County Ventura
 • Total 1.113 sq mi (2.883 km2)
 • Land 1.113 sq mi (2.883 km2)
 • Water 0 sq mi (0 km2)  0%
Elevation[2] 1,165 ft (355 m)
Population (2010)
 • Total 1,037
 • Density 930/sq mi (360/km2)
Time zone Pacific (PST) (UTC-8)
 • Summer (DST) PDT (UTC-7)
GNIS feature ID 2585445[2]

Santa Susana is a census-designated place (CDP) in Ventura County, California.[2] The 2010 United States census reported Santa Susana's population as 1,037. Located at the southeast corner of the Simi Valley[3] but outside the City of Simi Valley, this unincorporated area is known as Santa Susana Knolls.[4] Santa Susana is nestled up against the northern slope of the Simi Hills at an average elevation of 1,165 feet (355 m).[2]


According to the United States Census Bureau, the CDP covers an area of 1.1 square miles (2.9 km²), all of it land.


The 2010 United States Census[5] reported that Santa Susana had a population of 1,037. The population density was 931.5 people per square mile (359.7/km²). The racial makeup of Santa Susana was 904 (87.2%) White, 17 (1.6%) African American, 2 (0.2%) Native American, 23 (2.2%) Asian, 0 (0.0%) Pacific Islander, 33 (3.2%) from other races, and 58 (5.6%) from two or more races. Hispanic or Latino of any race were 156 persons (15.0%).

The Census reported that 1,031 people (99.4% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 6 (0.6%) were institutionalized.

There were 405 households, out of which 111 (27.4%) had children under the age of 18 living in them, 207 (51.1%) were opposite-sex married couples living together, 35 (8.6%) had a female householder with no husband present, 29 (7.2%) had a male householder with no wife present. There were 30 (7.4%) unmarried opposite-sex partnerships, and 8 (2.0%) same-sex married couples or partnerships. 88 households (21.7%) were made up of individuals and 14 (3.5%) had someone living alone who was 65 years of age or older. The average household size was 2.55. There were 271 families (66.9% of all households); the average family size was 2.93.

The population was spread out with 186 people (17.9%) under the age of 18, 87 people (8.4%) aged 18 to 24, 252 people (24.3%) aged 25 to 44, 418 people (40.3%) aged 45 to 64, and 94 people (9.1%) who were 65 years of age or older. The median age was 44.4 years. For every 100 females there were 105.3 males. For every 100 females age 18 and over, there were 107.1 males.

There were 439 housing units at an average density of 394.4 per square mile (152.3/km²), of which 307 (75.8%) were owner-occupied, and 98 (24.2%) were occupied by renters. The homeowner vacancy rate was 2.8%; the rental vacancy rate was 4.8%. 804 people (77.5% of the population) lived in owner-occupied housing units and 227 people (21.9%) lived in rental housing units.


  1. ^ U.S. Census
  2. ^ a b c d U.S. Geological Survey Geographic Names Information System: Santa Susana CDP
  3. ^ "Boundary Map and Geodata for the CDP of Santa Susana in California, U.S.A". Retrieved February 10, 2014
  4. ^ U.S. Geological Survey Geographic Names Information System: Santa Susana Knolls: Populated Place
  5. ^ All data are derived from the United States Census Bureau reports from the 2010 United States Census, and are accessible on-line here. The data on unmarried partnerships and same-sex married couples are from the Census report DEC_10_SF1_PCT15. All other housing and population data are from Census report DEC_10_DP_DPDP1. Both reports are viewable online or downloadable in a zip file containing a comma-delimited data file. The area data, from which densities are calculated, are available on-line here. Percentage totals may not add to 100% due to rounding. The Census Bureau defines families as a household containing one or more people related to the householder by birth, opposite-sex marriage, or adoption. People living in group quarters are tabulated by the Census Bureau as neither owners nor renters. For further details, see the text files accompanying the data files containing the Census reports mentioned above.