Rocklin, California

Rocklin population, 2020 to 2024

Rocklin added 3,357 residents from July 2020 to July 2024, a change of +4.7%. In the latest year it moved by +1,294. Among 429 California places of 5,000 or more, that growth ranks 47th; the median place changed by -1.1%. The median place of 5,000+ in California has 37,056 people, so Rocklin is 2.0 times that size.

Rocklin covers 19.84 square miles of land and 0.02 of water, for 3,787 people per square mile of land. The median California place of 5,000+ has 3,725, so Rocklin is close to the typical town.

What county Rocklin is in

All of Rocklin's residents live in Placer County, which had 433,822 residents in 2024. Rocklin holds 17.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Rocklin

2 ZIP Code Tabulation Areas (ZCTAs) overlap Rocklin by at least 10% of the ZCTA's or the city's land: 95677, 95765. 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 Rocklin is

The Census internal point of Rocklin is at 38.806900, -121.249700. Sacramento, the capital, is 20.6 miles SW in a straight line. The nearest larger place is Roseville, CA (163,304 people), 4.5 miles away.

Daylight in Rocklin

At 38.81° N, Rocklin gets about 14 h 53 min of daylight around the June solstice and 9 h 27 min around the December solstice, a swing of 5 h 26 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Rocklin

The eight nearest incorporated places of 1,000+ in California, measured between internal points. The closest is Loomis, 2.9 miles away, with 6,939 people.