Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/CA/ASHLAND

Ashland ZIP codes, California

No ZIP code is named for Ashland, CA; addresses there use a neighbouring town's name. 5 ZIP codes cover it: 94541, 94546, 94578, 94580 and 94579. Its area codes are 510 and 341.

USPS city name
0 ZIP codes
Overlapping the city
5 more
Population
22,210
Area codes
510, 341

NANPA lists no telephone rate centre for Ashland itself, so these are the area codes of the nearest one, Hayward (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Ashland in numbers

About 22,210 people live in Ashland, in 7,546 households. The median household income is $81,702 a year, 18% below the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $775,800 (6% above the California median), and median gross rent is $2,110 a month. The median age is 35.6; 20.8% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 33 minutes.

Population22,210Ashland22,210
Households7,546Ashland7,546
Median age35.6Ashland35.6California37.9US 38.9
Median household income$81,702Ashland$81,702California$99,122US $80,734
Median home value$775,800Ashland$775,800California$734,700US $332,700
Median gross rent$2,110Ashland$2,110California$2,036US $1,413
Bachelor's degree or higher20.8%Ashland20.8%California37.1%US 35.7%
Mean commute32.7 minAshland32.7 minCalifornia28.7 minUS 26.4 min
Population density12,051 / sq miAshland12,051 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Ashland CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Ashland

These ZIP codes cover part of Ashland but are addressed as somewhere else.

ZIP codes overlapping Ashland
ZIP City Type Population Median income Median home
94541 Hayward , CA Standard 67,139 $105,729 $812,000
94546 Castro Valley , CA Standard 44,855 $128,385 $1,043,500
94578 San Leandro , CA Standard 41,769 $94,084 $823,000
94579 San Leandro , CA Standard 20,017 $99,040 $850,300
94580 San Lorenzo , CA Standard 29,420 $110,729 $846,700

Map of Ashland ZIP codes

9454194546945789457994580

The ZIP codes of Ashland, CA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Ashland

The nearest larger towns are San Lorenzo (29,171 people, 1.7 mi), San Leandro (87,826 people, 2.7 mi) and Castro Valley (65,001 people, 3.1 mi).

Towns near Ashland
TownPopulationDistance
Cherryland 14,143 1.2 mi
San Lorenzo 29,171 1.7 mi
San Leandro 87,826 2.7 mi
Castro Valley 65,001 3.1 mi
Fairview 10,745 4.1 mi
Hayward 158,801 4.7 mi
Oakland 439,418 8.0 mi
Union City 67,464 8.3 mi
Alameda 77,238 8.5 mi
Moraga 16,769 10.5 mi
Piedmont 10,945 10.8 mi
San Ramon 85,993 11.2 mi
Danville 43,401 11.4 mi
Foster City 32,792 11.6 mi

More nearby: every ZIP code in Alameda County · California ZIP codes

Cite this page

zipcodes.pro. “Ashland, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/ashland

Underlying data is public domain or openly licensed — sources, vintages and licences.