Loma Mar, California Demographics & Population 2026

A note before these figures: with a population of 309, Loma Mar's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Loma Mar is a small community located in California, within San Mateo County. The total population is 309. It ranks as the 1315th most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in Loma Mar is 46.5 years. This is 23% higher than the state median of 37.9 years.

Economy, Income & Housing

The median household income in Loma Mar is $250,000+. This is 152% higher than the state median of $99,122. It is also 210% higher than the national median of $80,734. The ACS records no residents below the poverty line in Loma Mar. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Loma Mar, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $1,073,100. Housing costs are 46% higher than the state median of $734,700. The home-value-to-income ratio is 4.3x. 79.3% of occupied housing units are owner-occupied. This homeownership rate is 42% higher than the state average of 55.9%.

Race & Ethnicity

Loma Mar has a predominantly White (non-Hispanic) population, comprising 90.9% of all residents. Asian residents account for 9.1%. The White (non-Hispanic) population is significantly higher than the state average (90.9% vs 33.8%).

Education

69.5% of residents aged 25 and older hold a bachelor's degree or higher. This places Loma Mar in the top 10% of all cities in the state for educational attainment. This is 87% higher than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample. Notably, 27.9% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Loma Mar, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.