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Williams city, CA

ZIP Code 95987 — Williams city, CA Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Map, Quick Facts & Location

Quick Facts

Local time
Population
6,489
Median Income
$92,337
+23% vs US avg
Home Value
$372,100
+7% vs US avg
Median Rent
$938
-19% vs US avg
Median Age
32.2 yrs
-17% vs US avg
Area Code
Congress
Top Ancestry
GermanIrishAmerican
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Location
Coordinates
39.1051, -122.2830
Elevation
50 ft
Land Area
334.7 sq mi
Water Area
0.1 sq mi (0% water)

At a glance

Population
6,489
Density
N/A
Median income
$92,337
+23% vs US avg
Home value
$372,100
+7% vs US avg
Median rent
$938
-19% vs US avg
Timezone

Overview of ZIP Code 95987

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What to know about ZIP 95987

ZIP code 95987 covers Williams, CA in Colusa County with a population of about 6,489.

At a glance, the area shows median age of 32.2 versus a U.S. median of about 38.9.

It sits in telephone area code 530; U.S. House district CA-1; the SACRAMNTO - STKTN - MODESTO media market.

Income and economy in Williams, CA

Median household income in ZIP 95987 is about $92,337 — about 23% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 6.0%; unemployment rate near 13.0%; 16.8% of adults with a bachelor’s degree or higher (about 16.9 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Agriculture, Manufacturing, and Transportation; about 3.4% of workers reporting work-from-home (about 11.8 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 95987

Median home value is about $372,100 — about 7% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $938 (about 19% below the U.S. median rent ($1,163)), and owner-occupancy near 55.0% (about 10.4 points below the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 95987 in Williams, CA, a household would need roughly $102,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $2,390. That is roughly in line with the local median household income ($92,337). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Williams city, CA as Relatively Moderate (composite score 81.1), which is elevated versus much of the country. The strongest component scores on US5 are wildfire (89.1) and flood (37.9). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Williams city, CA show little to no average snow and around 17.2 inches of annual precipitation.

IRS migration statistics show a net inflow of about 319 for ZIP 95987 (Williams city, CA) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport MYV (38.2 miles (61.5 km)) · Pacific Union College (37.9 miles (61.0 km)) · Port Chicago Naval Magazine National Memorial (73.7 miles (118.6 km)) · VA: Clearlake VA Outpatient Clinic (21.4 miles (34.5 km))

Full lists and map pins are in the Infrastructure section below.