Loma Mar, CA 94021 ZIP Code Profile

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Loma Mar, CA

ZIP Code 94021: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Loma Mar, CA 94021

  • ZIP Code Type: STANDARD
  • County: San Mateo County
  • Centroid: Latitude 37.243, Longitude -122.255
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 7
  • PO Box Addresses: 21
  • Residential Addresses: 60
    • Multi-Family Addresses: 0
    • Single Family Addresses: 60

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


94021 ZIP Code Map

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Loma Mar, CA 94021 Data & Demographics (As of July 1, 2017)


Total Population 74
Daytime Population: Workers 33
Daytime Population: Residents 32
Total Daytime Population (TDP) 65
Ratio TDP/Total Population1 0.88
Population in Households 72
Population in Familes 51
Population in Group Qrtrs 2
Population Density2 66
Diversity Index3 64


Median Household Income $107,381
Average Household Income $173,701
Per Capita Income $80,681


Total Housing Units 47 (100%)
Owner Occupied HU 19 (40.4%)
Renter Occupied HU 15 (31.9%)
Vacant Housing Units 13 (27.7%)
Median Home Value $1,000,001
Average Home Value $1,138,158


Total Households 34
Average Household Size 2.12
Family Households 18
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 race 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.


2010-2017 2017-2022
Population 1.8% 1.32%
Households 1.74% 1.15%
Families 1.64% 2.13%
Median Household Income   0.98%
Per Capita Income   2.43%

Loma Mar, CA 94021 - Peer Comparisons by Rank and Percentile

The table below compares 94021 to the other 1,761 ZIP Codes in California by rank and percentile using July 1, 2017 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.

Variable Description Rank Percentile
Total Population # 1683 4th
Population Density # 1263 28th
Diversity Index # 995 43rd
Median Household Income # 149 92nd
Per Capita Income # 49 97th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

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