94551 ZIP Code Profile, Map, Data & Demographics

ZIP Code Type: STANDARD
County: Alameda County
Centroid: Latitude 37.731, Longitude -121.692
Time Zone: Pacific Time Zone (UTC -8 hours)
Observes DST: Yes

ZIP Code 94551 has segments in 2 Counties (Alameda, Contra Costa).

Businesses Addresses: 2,214
PO Box Addresses: 730
Residential Addresses: 14,590

Multi-Family Addresses: 1,268
Single Family Addresses: 13,322

The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.

Livermore, CA 94551 Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	40,167 (100%)
Population in Households	39,907 (99.4%)
Population in Families	33,775 (84.1%)
Population in Group Quarters¹	260 ( 0.6%)
Population Density	645
Diversity Index²	79


INCOME
Median Household Income	$135,202
Average Household Income	$178,922
% of Income for Mortgage⁴	45%
Per Capita Income	$64,619
Wealth Index⁵	167
Socioeconomic Status Index⁶	Moderate (55.0)

HOUSING
Total HU (Housing Units)	15,148 (100%)
Owner Occupied HU	10,093 (66.6%)
Renter Occupied HU	4,407 (29.1%)
Vacant Housing Units	648 ( 4.3%)
Median Home Value	$962,309
Average Home Value	$1,083,973
Housing Affordability Index³	55

HOUSEHOLDS
Total Households	14,500
Average Household Size	2.75
Family Households	10,309
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Livermore, CA 94551 - Peer Comparisons by Rank and Percentile

The table below compares 94551 to the other 1,774 ZIP Codes in California by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-0.08%	0.06%
Households	-0.01%	0.07%
Families		0.42%
Median Household Income		3.14%
Per Capita Income		2.44%
Owner Occupied HU		-0.04%

Variable Description	Rank	Percentile
Total Population	# 391	78th
Population Density	# 921	48th
Median Household Income	# 301	83rd
Housing Affordability Index	# 1077	61st
Per Capita Income	# 369	79th
Diversity Index	# 631	64th

94551 ZIP Code Profile, Map, Data & Demographics

ZIP Code 94551: Basic Data & USPS Preferred City Name

Livermore, CA 94551 Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Livermore, CA 94551 - Peer Comparisons by Rank and Percentile

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