Atascadero, California

Atascadero population, 2020 to 2024

Atascadero lost 3 residents from July 2020 to July 2024, a change of -0.0%. In the latest year it moved by +51. Among 429 California places of 5,000 or more, that growth ranks 162nd; the median place changed by -1.1%. The median place of 5,000+ in California has 37,056 people, so Atascadero is 80% of it.

Atascadero covers 26.07 square miles of land and 0.06 of water, for 1,141 people per square mile of land. The median California place of 5,000+ has 3,725, so Atascadero is less dense than the typical town.

What county Atascadero is in

All of Atascadero's residents live in San Luis Obispo County, which had 281,843 residents in 2024. Atascadero holds 10.6% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Atascadero

1 ZIP Code Tabulation Area (ZCTA) overlaps Atascadero by at least 10% of the ZCTA's or the city's land: 93422. 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 Atascadero is

The Census internal point of Atascadero is at 35.485700, -120.687900. Sacramento, the capital, is 218.2 miles NNW in a straight line. The nearest larger place is El Paso de Robles (Paso Robles), CA (31,568 people), 10.1 miles away. The nearest city of 100,000 or more is Santa Maria, CA, 40.6 miles away.

Daylight in Atascadero

At 35.49° N, Atascadero gets about 14 h 34 min of daylight around the June solstice and 9 h 46 min around the December solstice, a swing of 4 h 48 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Atascadero

The eight nearest incorporated places of 1,000+ in California, measured between internal points. The closest is El Paso de Robles (Paso Robles), 10.1 miles away, with 31,568 people.