Orinda, CA Profile: Facts, Map & Data


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Orinda, California - Basic Facts

The City of Orinda had a population of 18,871 as of July 1, 2017. Orinda ranks in the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for Orinda is located at latitude 37.8816 and longitude -122.1686 in Contra Costa County. The formal boundaries for the City of Orinda (see map below) encompass a land area of 12.85 sq. miles and a water area of 0.01 sq. miles. Contra Costa County is in the Pacific time zone (GMT -8). The elevation is 495 feet.

The City of Orinda (GNIS ID: 2411334) 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 Orinda is located within Central Contra Costa CCD of Contra Costa County.

Beneath the boundary map are tables with Orinda 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 Orinda: Orinda Park.

EXTREMELY LOCAL Demographic Data

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City of Orinda, CA Boundary Map

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


Total Population 18,871
Daytime Population: Workers 5,006
Daytime Population: Residents 10,364
Total Daytime Population (TDP) 15,370
Ratio TDP/Total Population1 0.81
Population in Households 18,790
Population in Familes 16,671
Population in Group Qrtrs 81
Population Density2 1,468
Diversity Index3 43


Median Household Income $175,363
Average Household Income $244,375
Per Capita Income $91,133


Total Housing Units 7,060 (100%)
Owner Occupied HU 6,054 (85.8%)
Renter Occupied HU 903 (12.8%)
Vacant Housing Units 103 ( 1.5%)
Median Home Value $1,000,001
Average Home Value $1,095,059


Total Households 6,957
Average Household Size 2.7
Family Households 5,454
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 0.95% 0.95%
Households 0.84% 0.88%
Families 0.67% 0.87%
Median Household Income   0.57%
Per Capita Income   1.34%

Orinda, CA - Peer Comparisons by Rank and Percentile

The table below compares Orinda 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 # 357 77th
Population Density # 687 55th
Diversity Index # 1135 25th
Median Household Income # 25 98th
Per Capita Income # 18 99th

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

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