Williams, CA Profile: Facts, Map & Data


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Williams, California - Basic Facts

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The City of Williams had a population of 5,480 as of July 1, 2017. Williams ranks in the upper 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 Williams is located at latitude 39.1487 and longitude -122.1373 in Colusa County. The formal boundaries for the City of Williams (see map below) encompass a land area of 5.44 sq. miles and a water area of 0 sq. miles. Colusa County is in the Pacific time zone (GMT -8). The elevation is 82 feet.

The City of Williams (GNIS ID: 2412268) 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 Williams is located within Central Colusa CCD of Colusa County.

Beneath the boundary map are tables with Williams 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 Williams: Central.

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City of Williams, CA Boundary Map

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Boundary Maps: Central Colusa CCD | Colusa County | California Counties

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


Total Population 5,480
Daytime Population: Workers 1,971
Daytime Population: Residents 3,002
Total Daytime Population (TDP) 4,973
Ratio TDP/Total Population1 0.91
Population in Households 5,355
Population in Familes 4,856
Population in Group Qrtrs 125
Population Density2 1,007
Diversity Index3 82


Median Household Income $49,506
Average Household Income $58,791
Per Capita Income $16,178


Total Housing Units 1,586 (100%)
Owner Occupied HU 855 (53.9%)
Renter Occupied HU 605 (38.1%)
Vacant Housing Units 126 ( 7.9%)
Median Home Value $183,627
Average Home Value $212,821


Total Households 1,460
Average Household Size 3.67
Family Households 1,199
Average Family Size 4
  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 0.93% 0.64%
Households 0.89% 0.66%
Families 0.82% 0.66%
Median Household Income   0.22%
Per Capita Income   1.49%

Williams, CA - Peer Comparisons by Rank and Percentile

The table below compares Williams 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 # 629 59th
Population Density # 771 49th
Diversity Index # 305 80th
Median Household Income # 965 36th
Per Capita Income # 1325 13th

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

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