Zip Code 92831
Fullerton, California — Orange County
📍 ZIP code 92831 is in Fullerton, Orange County, California.
ZIP code 92831 is located in Fullerton, Orange County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 35,831. The area code for ZIP code 92831 is 714.
Quick Answer
Zip code 92831 is in Fullerton, California (Orange County). It has a population of 35,831, median household income of $89,451, and median home value of $821,300.
Population
35,831
Income
$89,451
Home Value
$821,300
Climate
87°F / 49°F
About Zip Code 92831
Zip code 92831 is located in Fullerton, California, within Orange County. Home to approximately 35,831 residents, this area sits at an elevation of 219 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 714.
The median household income is $89,451 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $821,300, and the cost of living index is 205 (105% above the national average of 100).
Summers average a high of 87°F while winters drop to 49°F. The area receives about 14 in of rain annually. The zip code covers 6 square miles of land area.
Key Statistics
35,831
$89,451
$821,300
Pacific (PST/PDT)
714
219 ft
6 sq mi
31.7
13,691
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Compare With Nearby Zip Codes
| Metric | 92831 | 92835 | 92832 | 92870 | 92806 | 92821 |
|---|---|---|---|---|---|---|
| City | Fullerton, CA | Fullerton, CA | Fullerton, CA | Placentia, CA | Anaheim, CA | Brea, CA |
| Population | 35,831 | 26,753 | 26,364 | 52,384 | 40,528 | 42,196 |
| Median Income | $89,451 | $138,487 | $92,588 | $110,575 | $95,112 | $116,660 |
| Home Value | $821,300 | $981,700 | $773,100 | $871,000 | $791,200 | $851,800 |
| Cost of Living | 205 | 250 | 196 | 236 | 209 | 235 |
| Median Age | 31.7 | 42.3 | 35.2 | 38 | 34.3 | 39.7 |
Cost of Living
100 = National Average. Fullerton's cost of living is 105% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
9.2x
Demographics
Zip code 92831 has a population of 35,831 people with a median age of 31.7. There are 13,691 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Fullerton (92831) population trend from 2010 to 2024
↓ -15.1%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
87°F
49°F
14 in
0 in
Fullerton experiences warm summers with average highs around 87°F. Winters are mild with lows averaging 49°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$821,300
Median Household Income
$89,451
With 13,691 housing units across 6 square miles, 92831 has a housing density of 2,282 units per square mile. The home price-to-income ratio is 9.2x.
Location & Geography
Latitude
33.8798°
Longitude
-117.8963°
Land Area
6 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 92831 (Fullerton, CA) with distances:
All Zip Codes in Fullerton, CA
Other zip codes serving Fullerton:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 92831's $89,451. A way to compare Fullerton to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 92831 (Fullerton, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Fullerton, California?
Fullerton, California uses zip code 92831 along with 3 other zip codes.
What county is zip code 92831 in?
Zip code 92831 is located in Orange County, California.
What is the population of zip code 92831?
The population of zip code 92831 is 35,831 with a median age of 31.7.
Is 92831 in Fullerton, California?
Yes, zip code 92831 is in Fullerton, Orange County, California. The area code is 714.
Frequently Asked Questions
What city is zip code 92831 in?
Zip code 92831 is in Fullerton, California. It is part of Orange County and uses the Pacific (PST/PDT) timezone.
What is zip code 92831?
Zip code 92831 is a U.S. postal code in Fullerton, California (Orange County). It has a population of 35,831 and covers 6 square miles.
What is the population of zip code 92831?
The population of zip code 92831 (Fullerton, CA) is 35,831 with a median age of 31.7. There are approximately 13,691 housing units in this area.
What is the median income in zip code 92831?
The median household income in zip code 92831 (Fullerton, CA) is $89,451 per year. The cost of living index is 205 (100 = national average).
What is the average home price in zip code 92831?
The median home value in zip code 92831 (Fullerton, CA) is $821,300. The cost of living index is 205 compared to the national average of 100.
What county is zip code 92831 in?
Zip code 92831 is located in Orange County, California. The primary city is Fullerton.
What is the area code for zip code 92831?
Zip code 92831 in Fullerton, CA uses area code 714. It is located in the Pacific (PST/PDT) timezone.
Is zip code 92831 a good place to live?
Zip code 92831 (Fullerton, CA) has a cost of living index of 205 (100 = national average), a median household income of $89,451, and median home values of $821,300. The median age is 31.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 92831?
The cost of living index for zip code 92831 (Fullerton, CA) is 205, where 100 represents the national average. This area is above the national average. Median home value: $821,300.
What schools serve zip code 92831?
Zip code 92831 in Fullerton, California is served by the local school district of Orange County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.