Home > CA > Alameda County > Livermore > Zip 94551

Zip Code 94551 — Livermore, CA

ZIP Code 94551 is associated with Livermore, CA, in Alameda County. The listed population estimate is 37,885; estimated density is 176.8 people per square mile. Among records with population estimates, it ranks #19 of 49 in Alameda County and #421 of 1,762 in CA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (37.759020, -121.760260)

Data MetricLocal Statistic
Postal / Zip Code94551
Primary CityLivermore
State / ProvinceCA
CountyAlameda
Total Population37,885
Population Density176.8 people/sq mi
TimezoneAmerica/Los_Angeles

How 94551 Compares

MetricZIP 94551Alameda County recordsCA records
Population estimate37,8851,668,635 (sum)39,286,245 (sum)
Population Density176.8 /sq mi----
County population rank#19 of 49----
State population rank#421 of 1,762----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in CA

ZIP CodeCityDistancePopulation estimate
ZIP 94588Pleasanton6.8 mi34,328
ZIP 94568Dublin8.3 mi70,803
ZIP 94582San Ramon8.4 mi47,424
ZIP 94514Byron8.5 mi1,953
ZIP 94506Danville8.6 mi27,055

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →