Zip Code 94621
Oakland, California — Alameda County
📍 ZIP code 94621 is in Oakland, Alameda County, California.
ZIP code 94621 is located in Oakland, Alameda County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 34,658. The area code for ZIP code 94621 is 510.
Quick Answer
Zip code 94621 is in Oakland, California (Alameda County). It has a population of 34,658, median household income of $53,106, and median home value of $537,600.
Population
34,658
Income
$53,106
Home Value
$537,600
Climate
72°F / 42°F
About Zip Code 94621
Zip code 94621 is located in Oakland, California, within Alameda County. Home to approximately 34,658 residents, this area sits at an elevation of 12 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 510.
The median household income is $53,106 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $537,600, and the cost of living index is 139 (39% above the national average of 100).
Summers average a high of 72°F while winters drop to 42°F. The area receives about 19 in of rain annually. The zip code covers 7.8 square miles of land area and 1.8 square miles of water.
Key Statistics
34,658
$53,106
$537,600
Pacific (PST/PDT)
510
12 ft
7.8 sq mi
33.4
11,078
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Compare With Nearby Zip Codes
| Metric | 94621 | 94502 | 94603 | 94601 | 94577 | 94606 |
|---|---|---|---|---|---|---|
| City | Oakland, CA | Alameda, CA | Oakland, CA | Oakland, CA | San Leandro, CA | Oakland, CA |
| Population | 34,658 | 13,359 | 36,440 | 52,289 | 47,533 | 38,746 |
| Median Income | $53,106 | $194,821 | $71,086 | $66,651 | $110,989 | $70,769 |
| Home Value | $537,600 | $1,182,600 | $596,100 | $703,100 | $824,900 | $747,600 |
| Cost of Living | 139 | 250 | 152 | 173 | 226 | 190 |
| Median Age | 33.4 | 45.2 | 34.2 | 35.5 | 40.6 | 37.5 |
Cost of Living
100 = National Average. Oakland's cost of living is 39% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
10.1x
Demographics
Zip code 94621 has a population of 34,658 people with a median age of 33.4. There are 11,078 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Oakland (94621) population trend from 2010 to 2024
↓ -32.0%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
72°F
42°F
19 in
0 in
Oakland experiences mild summers with average highs around 72°F. Winters are mild with lows averaging 42°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$537,600
Median Household Income
$53,106
With 11,078 housing units across 7.8 square miles, 94621 has a housing density of 1,420 units per square mile. The home price-to-income ratio is 10.1x.
Location & Geography
Latitude
37.7419°
Longitude
-122.2192°
Land Area
7.8 sq mi
Water Area
1.8 sq mi
Nearby Zip Codes
Zip codes closest to 94621 (Oakland, CA) with distances:
All Zip Codes in Oakland, CA
Other zip codes serving Oakland:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 94621's $53,106. A way to compare Oakland 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 94621 (Oakland, 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 Oakland, California?
Oakland, California uses zip code 94621 along with 3 other zip codes.
What county is zip code 94621 in?
Zip code 94621 is located in Alameda County, California.
What is the population of zip code 94621?
The population of zip code 94621 is 34,658 with a median age of 33.4.
Is 94621 in Oakland, California?
Yes, zip code 94621 is in Oakland, Alameda County, California. The area code is 510.
Frequently Asked Questions
What city is zip code 94621 in?
Zip code 94621 is in Oakland, California. It is part of Alameda County and uses the Pacific (PST/PDT) timezone.
What is zip code 94621?
Zip code 94621 is a U.S. postal code in Oakland, California (Alameda County). It has a population of 34,658 and covers 7.8 square miles.
What is the population of zip code 94621?
The population of zip code 94621 (Oakland, CA) is 34,658 with a median age of 33.4. There are approximately 11,078 housing units in this area.
What is the median income in zip code 94621?
The median household income in zip code 94621 (Oakland, CA) is $53,106 per year. The cost of living index is 139 (100 = national average).
What is the average home price in zip code 94621?
The median home value in zip code 94621 (Oakland, CA) is $537,600. The cost of living index is 139 compared to the national average of 100.
What county is zip code 94621 in?
Zip code 94621 is located in Alameda County, California. The primary city is Oakland.
What is the area code for zip code 94621?
Zip code 94621 in Oakland, CA uses area code 510. It is located in the Pacific (PST/PDT) timezone.
Is zip code 94621 a good place to live?
Zip code 94621 (Oakland, CA) has a cost of living index of 139 (100 = national average), a median household income of $53,106, and median home values of $537,600. The median age is 33.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 94621?
The cost of living index for zip code 94621 (Oakland, CA) is 139, where 100 represents the national average. This area is above the national average. Median home value: $537,600.
What schools serve zip code 94621?
Zip code 94621 in Oakland, California is served by the local school district of Alameda 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.