Lafayette, CA Profile: Facts, Map & Data


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Lafayette, California - Basic Facts

The City of Lafayette had a population of 24,650 as of July 1, 2017. Lafayette 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 Lafayette is located at latitude 37.891 and longitude -122.1195 in Contra Costa County. The formal boundaries for the City of Lafayette (see map below) encompass a land area of 15.05 sq. miles and a water area of 0.17 sq. miles. Contra Costa County is in the Pacific time zone (GMT -8). The elevation is 308 feet.

The City of Lafayette (GNIS ID: 2411591) 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 Lafayette is located within Central Contra Costa CCD of Contra Costa County.

Beneath the boundary map are tables with Lafayette 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 Lafayette: La Fayette.

EXTREMELY LOCAL Demographic Data

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City of Lafayette, CA Boundary Map

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


Total Population 24,650
Daytime Population: Workers 10,656
Daytime Population: Residents 13,059
Total Daytime Population (TDP) 23,715
Ratio TDP/Total Population1 0.96
Population in Households 24,511
Population in Familes 20,908
Population in Group Qrtrs 139
Population Density2 1,638
Diversity Index3 42


Median Household Income $152,250
Average Household Income $211,861
Per Capita Income $81,979


Total Housing Units 9,749 (100%)
Owner Occupied HU 6,882 (70.6%)
Renter Occupied HU 2,588 (26.5%)
Vacant Housing Units 279 ( 2.9%)
Median Home Value $1,000,001
Average Home Value $1,086,441


Total Households 9,470
Average Household Size 2.59
Family Households 6,876
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 0.84% 0.9%
Households 0.74% 0.83%
Families 0.6% 0.82%
Median Household Income   0.94%
Per Capita Income   1.66%

Lafayette, CA - Peer Comparisons by Rank and Percentile

The table below compares Lafayette 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 # 309 80th
Population Density # 654 57th
Diversity Index # 1158 24th
Median Household Income # 37 98th
Per Capita Income # 40 97th

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

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