San Ramon, California

San Ramon population, 2020 to 2024

San Ramon lost 461 residents from July 2020 to July 2024, a change of -0.5%. In the latest year it moved by +428. Among 429 California places of 5,000 or more, that growth ranks 188th; the median place changed by -1.1%. The median place of 5,000+ in California has 37,056 people, so San Ramon is 2.3 times that size.

San Ramon covers 20.06 square miles of land and 0.03 of water, for 4,283 people per square mile of land. The median California place of 5,000+ has 3,725, so San Ramon is denser than the typical town.

What county San Ramon is in

All of San Ramon's residents live in Contra Costa County, which had 1,172,607 residents in 2024. San Ramon holds 7.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in San Ramon

2 ZIP Code Tabulation Areas (ZCTAs) overlap San Ramon by at least 10% of the ZCTA's or the city's land: 94582, 94583. 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 Ramon is

The Census internal point of San Ramon is at 37.765300, -121.932000. Sacramento, the capital, is 60.9 miles NNE in a straight line. The nearest larger place is San Leandro, CA (86,571 people), 13.3 miles away. The nearest city of 100,000 or more is Hayward, CA, 13.4 miles away.

Daylight in San Ramon

At 37.77° N, San Ramon gets about 14 h 47 min of daylight around the June solstice and 9 h 33 min around the December solstice, a swing of 5 h 14 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near San Ramon

The eight nearest incorporated places of 1,000+ in California, measured between internal points. The closest is Danville, 3.8 miles away, with 43,410 people.