Colusa County, CA ZIP Codes

8 ZIP codes cover all or part of Colusa County, California: 95932, 95987, 95912, 95955, 95645, 95979, 95970 and 95950. The Census Bureau counts 21,984 residents in the county, with a median household income of $75,672 and a median home value of $393,400. Median household income ranges from $61,652 in 95645 to $95,122 in 95987. Its largest communities include Colusa, Williams, Arbuckle, Maxwell and College City.

Colusa County (Census county figures)

MeasureCensus figure
Residents21,984
Households7,512
Median household income$75,672
Median home value$393,400
Median age35.9
Median rent$1,157

All 8 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)23,359
Households (sum of ZIP codes)8,017
Median household income, range across ZIP codes$61,652 (95645) to $95,122 (95987)
Household-weighted average of ZIP medians (an approximation, not a true median)$78,793
Homeowners63.2%
Households with kids under 1837.8%
Moved in the past year5.9%
Carrier routes in EDDM2GO's route library14 routes, 5,321 homes (6 of 8 ZIP codes)

Top facts

Every ZIP code in Colusa County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
95932Colusa7,7012,994$66,964$389,60060.4%32.5%6.4%63,278100% of its land
95987Williams6,7861,928$95,122$388,70057.7%54.0%9.0%31,080100% of its land
95912Arbuckle4,8551,580$86,457$435,80069.1%34.9%2.3%2893100% of its land
95955Maxwell1,405487—$405,40071.3%37.6%6.8%——100% of its land
95645Knights Landing1,314477$61,652$411,60078.6%40.9%0.7%18725% of its land
95979Stonyford558285$24,766$184,40056.5%13.7%8.2%1215100% of its land
95970Princeton453166$69,000$371,40068.7%30.1%0.7%111451% of its land
95950Grimes287100——55.0%0.0%0.0%——100% of its land

A ZIP code is listed for Colusa County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Rankings

Price a mailing to Colusa County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Colusa County, CA?
95932, 95987, 95912, 95955, 95645, 95979, 95970 and 95950. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Colusa County?
21,984 residents in 7,512 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Colusa County?
$75,672 for the county as a whole. Its ZIP codes range from $61,652 (95645) to $95,122 (95987).
Which Colusa County ZIP code has the highest median household income?
95987, at $95,122, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in Colusa County?
For the 6 of 8 ZIP codes in EDDM2GO's stored route library: 14 carrier routes reaching 5,321 residential and 346 business mailboxes. The route map loads the rest when you search them.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.