Larkspur, CA Profile: Facts & Data


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Larkspur, California - Basic Facts

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The City of Larkspur had a population of 12,586 as of July 1, 2021. Larkspur ranks in the upper quartile for Population Density and 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 Larkspur is located at latitude 37.9342 and longitude -122.5353 in Marin County. The formal boundaries for the City of Larkspur encompass a land area of 3.03 sq. miles and a water area of 0.22 sq. miles. Marin County is in the Pacific time zone (GMT -8). The elevation is 46 feet.

The City of Larkspur 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 Larkspur is located within Ross Valley CCD of Marin County.

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  1. Larkspur 2021 Demographic Data
  2. Growth Rates for Larkspur (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. California Research Tools (Easy Tools & Current Data)
  3. California Data Comparison Tool - 2021 Demographics

Larkspur, CA Data & Demographics (As of July 1, 2021)


Total Population 12,586 (100%)
Population in Households 12,476 (99.1%)
Population in Families 8,597 (68.3%)
Population in Group Quarters1 110 ( 0.9%)
Population Density 4,162
Diversity Index2 40


Median Household Income $102,281
Average Household Income $159,372
% of Income for Mortgage4 60%
Per Capita Income $76,962
Wealth Index5 193


Total HU (Housing Units) 6,633 (100%)
Owner Occupied HU 3,146 (47.4%)
Renter Occupied HU 2,991 (45.1%)
Vacant Housing Units 496 ( 7.5%)
Median Home Value $1,460,149
Average Home Value $1,502,089
Housing Affordability Index3 41


Total Households 6,137
Average Household Size 2.03
Family Households 3,071
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population 0.39% 0.32%
Households 0.26% 0.24%
Families 0.41% 0.23%
Median Household Income   2.41%
Per Capita Income   2.75%
Owner Occupied HU   0.42%

Larkspur, CA - Peer Comparisons by Rank and Percentile

The table below compares Larkspur to the other 1,521 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2021 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 # 438 71st
Population Density # 298 80th
Median Household Income # 284 81st
Housing Affordability Index # 205 13th
Per Capita Income # 90 94th
Diversity Index # 1232 19th

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

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