Janesville, CA Profile: Facts, Map & Data


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Janesville, California - Basic Facts

The Janesville Census Designated Place had a population of 1,562 as of July 1, 2015. Janesville ranks in the lower quartile for Population Density and 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 Janesville is located at latitude 40.2764 and longitude -120.5442 in Lassen County. The formal boundaries for the Janesville Census Designated Place (see map below) encompass a land area of 13.19 sq. miles and a water area of 0.01 sq. miles. Lassen County is in the Pacific time zone (GMT -8). The elevation is 4,239 feet.

The Janesville Census Designated Place (GNIS ID: 2611437) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Janesville Census Designated Place is located within Susanville CCD of Lassen County.

Beneath the boundary map are tables with Janesville population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2015.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


Janesville Census Designated Place, CA Boundary Map

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Boundary Maps: Susanville CCD | Lassen County | California Counties

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Janesville, CA Data & Demographics (As of July 1, 2015)


Total Population 1,562
Population in Households 1,556
Population in Familes 1,368
Population in Group Qrtrs 6
Population Density1 119
Diversity Index2 31


Total Households 600
Average Household Size 2.59
Family Households 463
Average Family Size 3


Total Housing Units 696 (100%)
Owner Occupied HU 496 (71.3%)
Renter Occupied HU 105 (15.1%)
Vacant Housing Units 96 (13.8%)
Median Home Value $208,547
Average Home Value $216,667


Median Household Income $70,551
Average Household Income $94,048
Per Capita Income $36,431
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 2.0% 1.37%
Households 2.21% 1.46%
Families 2.11% 1.51%
Median Household Income   4.3%
Per Capita Income   3.36%
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.


Janesville, CA - Peer Comparisons by Rank and Percentile

The table below compares Janesville to the other 1,523 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2015 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 # 940 38th
Population Density1 # 1259 17th
Diversity Index2 # 1360 11th
Median Household Income # 408 73rd
Per Capita Income # 359 76th

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