🇺🇸 United States ZIP Code

STANDARD

95987

Williams

ZIP Code 95987 is a standard zip code serving Williams, Williams, California (CA), in Colusa County, United States. It has an estimated population of 5,992 with a median household income of $53,596. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: Colusa
City: Williams
Timezone: America/Los_Angeles

Coordinates

Latitude: 39.133700
Longitude: -122.216200

Geographic Details

Land Area: 334.72 mi²
Water Area: 0.08 mi²
Population Density: 18.0 people per mi² (20th percentile)
Bounding Box: 39.226085°N, 38.923840°S, -122.040771°E, -122.500909°W

With 5,992 residents spread across 334.72 square miles, this area has a population density of 18.0 people per square mile.

Demographics

5,992

Population

60th percentile

$53,596

Median Income

60th percentile

$168,300

Median Home Value

65th percentile

334.72 mi²

Land Area

The median household income in 95987 is $53,596, and the median home value is $168,300.

Housing

1,854

Total Units

1,690

Occupied Units

91.2%

Occupancy Rate

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

91342

Sylmar

$59,329

93635

Los Banos

$46,933

95610

Citrus Heights

$50,928

91501

Burbank

$56,740

91762

Ontario

$51,495

91325

Northridge

$59,646

95220

Acampo

$54,000

91352

Sun Valley

$48,844

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.