San Marino, California

San Marino population, 2020 to 2024

San Marino lost 370 residents from July 2020 to July 2024, a change of -3.0%. In the latest year it moved by +26. Among 429 California places of 5,000 or more, that growth ranks 325th; the median place changed by -1.1%. The median place of 5,000+ in California has 37,056 people, so San Marino is 33% of it.

San Marino covers 3.77 square miles of land, for 3,211 people per square mile of land. The median California place of 5,000+ has 3,725, so San Marino is less dense than the typical town.

What county San Marino is in

All of San Marino's residents live in Los Angeles County, which had 9,757,179 residents in 2024. San Marino holds 0.1% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in San Marino

1 ZIP Code Tabulation Area (ZCTA) overlaps San Marino by at least 10% of the ZCTA's or the city's land: 91108. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where San Marino is

The Census internal point of San Marino is at 34.122700, -118.112900. Sacramento, the capital, is 360.7 miles NNW in a straight line. The nearest larger place is San Gabriel, CA (37,926 people), 2.1 miles away. The nearest city of 100,000 or more is Pasadena, CA, 3.0 miles away.

Daylight in San Marino

At 34.12° N, San Marino gets about 14 h 26 min of daylight around the June solstice and 9 h 53 min around the December solstice, a swing of 4 h 33 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near San Marino

The eight nearest incorporated places of 1,000+ in California, measured between internal points. The closest is San Gabriel, 2.1 miles away, with 37,926 people.