Rancho Santa Margarita, CA Profile: Facts, Map & Data


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Rancho Santa Margarita, California - Basic Facts

The City of Rancho Santa Margarita had a population of 48,845 as of July 1, 2016. Rancho Santa Margarita ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for Rancho Santa Margarita is located at latitude 33.6324 and longitude -117.599 in Orange County. The formal boundaries for the City of Rancho Santa Margarita (see map below) encompass a land area of 12.9 sq. miles and a water area of 0.04 sq. miles. Orange County is in the Pacific time zone (GMT -8). The elevation is 932 feet.

The City of Rancho Santa Margarita (GNIS ID: 2411517) 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 Rancho Santa Margarita is located within Mission Viejo CCD of Orange County.

Beneath the boundary map are tables with Rancho Santa Margarita population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

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City of Rancho Santa Margarita, CA Boundary Map

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Rancho Santa Margarita, CA Data & Demographics (As of July 1, 2016)


Total Population 48,845
Population in Households 48,843
Population in Familes 42,609
Population in Group Qrtrs 2
Population Density1 3,787
Diversity Index2 61


Total Households 16,840
Average Household Size 2.9
Family Households 12,673
Average Family Size 3


Total Housing Units 17,470 (100%)
Owner Occupied HU 11,847 (67.8%)
Renter Occupied HU 4,992 (28.6%)
Vacant Housing Units 630 ( 3.6%)
Median Home Value $587,114
Average Home Value $604,105


Median Household Income $105,551
Average Household Income $126,402
Per Capita Income $43,486
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.47% 0.71%
Households 0.29% 0.57%
Families 0.31% 0.56%
Median Household Income   1.15%
Per Capita Income   1.23%
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.

Rancho Santa Margarita, CA - Peer Comparisons by Rank and Percentile

The table below compares Rancho Santa Margarita to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2016 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 # 191 87th
Population Density1 # 338 78th
Diversity Index2 # 790 48th
Median Household Income # 113 93rd
Per Capita Income # 275 82nd

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

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