Postal Codes

94540 ZIP Code

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ZIP code 94540 covers Hayward, California. It has no Census ZIP Code Tabulation Area, which is how the Census Bureau treats ZIP codes that are not residential neighbourhoods — PO box-only ranges, military addresses, and codes assigned to a single large organisation. There are no population or income figures for it because nobody is counted as living there.

Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
9

Where 94540 is

Hayward, California — the point the Postal Service gives for this ZIP code. A ZIP code is a set of delivery routes rather than an area, so this marks its centre, not its boundary.

Business and employment

Census ZIP Code Business Patterns 2022

Business establishments9
People employed120
Annual payroll$9,571,000
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationLIVERMORE, CA US9.5 km away
Rain in a year15 in

Average high and low by month

January56.8°F / 39°F2.78 in rain
February61°F / 41°F2.72 in rain
March65.8°F / 43.3°F2.2 in rain
April70.6°F / 45.7°F1.1 in rain
May76.6°F / 50°F0.51 in rain
June83.9°F / 53.8°F0.12 in rain
July89°F / 56.6°F0 in rain
August88.6°F / 56.6°F0.04 in rain
September85.9°F / 54.7°F0.09 in rain
October77.2°F / 49.7°F0.77 in rain
November64.9°F / 42.8°F1.54 in rain
December56.9°F / 38.8°F2.73 in rain
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Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

94537 Fremont, CA0 km away
94557 Hayward, CA0 km away
94588 Pleasanton, CA2.4 km away
94568 Dublin, CA4 km away
94566 Pleasanton, CA4.4 km away
94586 Sunol, CA8.1 km away
94583 San Ramon, CA8.9 km away
94582 San Ramon, CA9.3 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Latitude, longitude37.6802, -121.9215

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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