Orinda, California

Orinda population, 2020 to 2024

Orinda added 61 residents from July 2020 to July 2024, a change of +0.3%. In the latest year it moved by +117. Among 429 California places of 5,000 or more, that growth ranks 150th; the median place changed by -1.1%. The median place of 5,000+ in California has 37,056 people, so Orinda is 53% of it.

Orinda covers 12.85 square miles of land and 0.02 of water, for 1,523 people per square mile of land. The median California place of 5,000+ has 3,725, so Orinda is less dense than the typical town.

What county Orinda is in

All of Orinda's residents live in Contra Costa County, which had 1,172,607 residents in 2024. Orinda holds 1.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Orinda

1 ZIP Code Tabulation Area (ZCTA) overlaps Orinda by at least 10% of the ZCTA's or the city's land: 94563. 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 Orinda is

The Census internal point of Orinda is at 37.881600, -122.168600. Sacramento, the capital, is 60.4 miles NE in a straight line. The nearest larger place is Lafayette, CA (25,371 people), 2.7 miles away. The nearest city of 100,000 or more is Berkeley, CA, 7.2 miles away.

Daylight in Orinda

At 37.88° N, Orinda gets about 14 h 48 min of daylight around the June solstice and 9 h 32 min around the December solstice, a swing of 5 h 15 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Orinda

The eight nearest incorporated places of 1,000+ in California, measured between internal points. The closest is Lafayette, 2.8 miles away, with 25,371 people.