Colfax, CA Profile: Facts, Map & Data


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Colfax, California - Basic Facts

The City of Colfax had a population of 2,187 as of July 1, 2018. Colfax 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 Colfax is located at latitude 39.0938 and longitude -120.9532 in Placer County. The formal boundaries for the City of Colfax (see map below) encompass a land area of 1.41 sq. miles and a water area of 0 sq. miles. Placer County is in the Pacific time zone (GMT -8). The elevation is 2,425 feet.

The City of Colfax (GNIS ID: 2410190) 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 Colfax is located within Colfax-Monumental Ridge CCD of Placer County.

Beneath the boundary map are tables with Colfax population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

Alternate Unofficial Names for Colfax: Alden Grove, Alder Grove, Illinoistown, Upper Corral.

EXTREMELY LOCAL Demographic Data

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City of Colfax, CA Boundary Map

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Boundary Maps: Colfax-Monumental Ridge CCD | Placer County | California Counties

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Colfax, CA Data & Demographics (As of July 1, 2018)


Total Population 2,187
Population in Households 2,183
Population in Familes 1,773
Population in Group Qrtrs 4
Population Density2 1,556
Diversity Index3 34


Median Household Income $64,405
Average Household Income $88,691
Per Capita Income $35,919


Total Housing Units 966 (100%)
Owner Occupied HU 657 (68.0%)
Renter Occupied HU 257 (26.6%)
Vacant Housing Units 53 ( 5.5%)
Median Home Value $416,327
Average Home Value $539,286


Total Households 913
Average Household Size 2.39
Family Households 621
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 1.32% 1.53%
Households 1.27% 1.51%
Families 2.54% 1.44%
Median Household Income   4.93%
Per Capita Income   3.91%

Colfax, CA - Peer Comparisons by Rank and Percentile

The table below compares Colfax to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2018 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 # 865 43rd
Population Density # 670 56th
Diversity Index # 1335 12th
Median Household Income # 623 59th
Per Capita Income # 541 64th

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

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