Fullerton, California

Fullerton population, 2020 to 2024

Fullerton lost 3,344 residents from July 2020 to July 2024, a change of -2.3%. In the latest year it moved by -88. Among 429 California places of 5,000 or more, that growth ranks 297th; the median place changed by -1.1%. The median place of 5,000+ in California has 37,056 people, so Fullerton is 3.8 times that size.

Fullerton covers 22.42 square miles of land, for 6,247 people per square mile of land. The median California place of 5,000+ has 3,725, so Fullerton is denser than the typical town.

What county Fullerton is in

All of Fullerton's residents live in Orange County, which had 3,170,435 residents in 2024. Fullerton holds 4.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Fullerton

4 ZIP Code Tabulation Areas (ZCTAs) overlap Fullerton by at least 10% of the ZCTA's or the city's land: 92831, 92832, 92833, 92835. 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 Fullerton is

The Census internal point of Fullerton is at 33.885700, -117.928000. Sacramento, the capital, is 380.1 miles NNW in a straight line. The nearest larger place is Garden Grove, CA (172,361 people), 7.6 miles away. The ground at the internal point is about 83 m (272 ft) above sea level.

Daylight in Fullerton

At 33.89° N, Fullerton gets about 14 h 25 min of daylight around the June solstice and 9 h 54 min around the December solstice, a swing of 4 h 31 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026. Month-by-month sunrise and sunset times are on the Fullerton daylight page.

Places near Fullerton

The eight nearest incorporated places of 1,000+ in California, measured between internal points. The closest is La Habra, 3.2 miles away, with 61,391 people.