Simi Valley, CA Profile: Facts, Map & Data


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Simi Valley, California - Basic Facts

The City of Simi Valley had a population of 128,860 as of July 1, 2017.

The primary coordinate point for Simi Valley is located at latitude 34.2669 and longitude -118.7485 in Ventura County. The formal boundaries for the City of Simi Valley (see map below) encompass a land area of 41.48 sq. miles and a water area of 0.77 sq. miles. Ventura County is in the Pacific time zone (GMT -8). The elevation is 768 feet.

The City of Simi Valley (GNIS ID: 2411904) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Simi Valley is located within Simi Valley CCD of Ventura County.

Beneath the boundary map are tables with Simi Valley population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Simi Valley: Chimii, Simi, Simih, Simiopolis.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Simi Valley, CA Boundary Map

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Boundary Maps: Simi Valley CCD | Ventura County | California Counties

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Simi Valley, CA Data & Demographics (As of July 1, 2017)


Total Population 128,860
Population in Households 128,194
Population in Familes 109,329
Population in Group Qrtrs 666
Population Density1 3,107
Diversity Index2 67


Total Households 42,427
Average Household Size 3.02
Family Households 32,562
Average Family Size 3


Total Housing Units 43,575 (100%)
Owner Occupied HU 30,941 (71.0%)
Renter Occupied HU 11,487 (26.4%)
Vacant Housing Units 1,148 ( 2.6%)
Median Home Value $522,610
Average Home Value $579,642


Median Household Income $95,182
Average Household Income $120,206
Per Capita Income $39,850
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.5% 0.59%
Households 0.39% 0.51%
Families 0.37% 0.5%
Median Household Income   1.7%
Per Capita Income   2.35%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Simi Valley, CA - Peer Comparisons by Rank and Percentile

The table below compares Simi Valley to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 47 97th
Population Density1 # 440 71st
Diversity Index2 # 699 54th
Median Household Income # 213 86th
Per Capita Income # 366 76th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

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