Find the last 4 digits (ZIP+4) for an address in 94566

ZIP 94566, Pleasanton, CA is filled in. Just type the street address.

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ZIP Code 94566 – Pleasanton, CA

Pleasanton, California · Alameda County · Pacific time

ZIP code94566
CityPleasanton
StateCalifornia
CountyAlameda County
Population44,222
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area20.32 sq mi
Center (lat, long)37.6487, -121.8480

Area codes in this area

925

These are the area codes that most often serve ZIP 94566 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

94537 Fremont · 4.6 mi94540 Hayward · 4.6 mi94557 Hayward · 4.6 mi94568 Dublin · 5.5 mi94586 Sunol · 5.6 mi94582 San Ramon · 8.8 mi94551 Livermore · 8.9 mi94536 Fremont · 9.1 mi

About ZIP 94566

ZIP code 94566 is assigned to Pleasanton, California. It lies in Alameda County. Its Census area covers about 20.32 square miles of land. The closest neighboring ZIP is 94537 (Fremont), about 4.6 miles away.

Every address in 94566 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources