What city is 94603 in?

94603 is a Oakland, CA mailing address. By land area, 100% lies inside Oakland.

What is the population of 94603?

About 35,742 people (±1,496), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 36,681.

What is the median household income in 94603?

$76,723 (±$5,366), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 94603?

14 USPS carrier routes with 10,329 residential and 507 business mailboxes (10,836 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 94603?

The closest, measured center to center: 94577 (1.6 mi, San Leandro), 94605 (2.1 mi, Oakland), 94621 (2.1 mi, Oakland), 94613 (2.9 mi, Oakland), 94601 (3.4 mi, Oakland) and 94502 (3.5 mi, Alameda).

94603 ZIP Code, Oakland, CA

94603 is a ZIP code in Oakland, California in Alameda County. It covers 2.7 square miles of land. The closest ZIP codes are 94577, 94605 and 94621. 35,742 people live here in 10,527 households. It is densely built, at about 13,248 people per square mile, and owners and renters are mixed (48% own). Median household income is $76,723, below the California median of $99,122; 42% of households have children under 18.

Quick facts

Mailing city: Oakland, CA
County: Alameda County
Land area: 2.7 sq mi
Population: 35,742
Median household income: $76,723
Carrier routes: 14 (10,329 homes)

Key figures

Measure	Value
Residents	35,742
Households	10,527
Median household income	$76,723
Income per person	$27,661
Median age	34.8
Homeowners	47.9%
Median home value	$614,700
Median rent	$1,842
Bachelor's degree or higher	14.7%
Average commute (minutes)	27
Households with kids under 18	42.4%
Moved in the past year	7.0%
Below the poverty line	13.4%
Broadband internet	87.9%
Speak a non-English language at home	64.9%

Household income

% of households	Value
<$10K	4.8%
$10–15K	4.6%
$15–25K	6.9%
$25–35K	6.5%
$35–50K	11.8%
$50–75K	13.9%
$75–100K	15.1%
$100–150K	19.4%
$150–200K	9.4%
$200K+	7.6%

Age

% of all residents	Value
<10	12.9%
10–19	15.6%
20–24	6.6%
25–34	15.3%
35–44	15.3%
45–54	12.9%
55–64	11.7%
65–74	6.2%
75+	3.4%

Tenure

% of housing units	Value
Owned, with mortgage	32.5%
Owned outright	13.1%
Rented	49.0%
Vacant	5.4%

Type of building

% of housing units	Value
Detached house	63.6%
Townhome	5.9%
2–4 units	17.1%
5–19 units	7.1%
20+ units	3.8%
Mobile / other	2.4%

Businesses in 94603

303 business establishments with 4,003 employees (ZIP Codes Business Patterns 2023).

Construction: 52
Retail Trade: 45
Administrative and Support and Waste Management and Remediation Services: 30
Other Services (except Public Administration): 29
Transportation and Warehousing: 25
Wholesale Trade: 23
Accommodation and Food Services: 22
Health Care and Social Assistance: 20

EDDM carrier routes

94603 has 14 USPS carrier routes with 10,329 residential and 507 business mailboxes. Open the EDDM route map.

Carrier routes in 94603

94603 has 14 USPS carrier routes (14 city (C)) with 10,329 residential and 507 business mailboxes. Routes range from 422 homes (C022) to 1,172 homes (C006); the median route has 699 homes. The Census counted 10,527 households in 94603 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	1
500–749	8
750–999	4
1,000–1,499	1
1,500+	0

Best routes in 94603 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C006 — USPS business mailboxes 127, 1,172 homes
Route C019 — USPS business mailboxes 104, 591 homes
Route C003 — USPS business mailboxes 95, 763 homes
Route C008 — USPS business mailboxes 63, 597 homes
Route C004 — USPS business mailboxes 58, 710 homes

Select these 5 routes on the route map

Every carrier route in 94603

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	688	10	$94,441	—	—	—
C002	City	747	1	$112,252	—	—	—
C003	City	763	95	$89,530	—	—	—
C004	City	710	58	$54,090	—	—	—
C006	City	1,172	127	$54,536	—	—	—
C008	City	597	63	$63,928	—	—	—
C011	City	822	27	$64,205	—	—	—
C012	City	613	3	$64,205	—	—	—
C013	City	684	5	$50,491	—	—	—
C017	City	898	7	$63,761	—	—	—
C018	City	644	2	$88,722	—	—	—
C019	City	591	104	$90,677	—	—	—
C020	City	978	5	$57,794	—	—	—
C022	City	422	0	$46,246	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94603 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

94577 — San Leandro city, CA (1.6 mi)
94605 — Oakland city, CA (2.1 mi)
94621 — Oakland city, CA (2.1 mi)
94613 — Oakland city, CA (2.9 mi)
94601 — Oakland city, CA (3.4 mi)
94502 — Alameda city, CA (3.5 mi)
94578 — San Leandro city, CA (3.5 mi)
94579 — San Leandro city, CA (3.8 mi)

Areas that include 94603

Where it ranks

Mail every home in 94603

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 94603, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 94603 in?: 94603 is a Oakland, CA mailing address. By land area, 100% lies inside Oakland.
What county is 94603 in?: 94603 is in Alameda County.
What is the population of 94603?: About 35,742 people (±1,496), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 36,681.
What is the median household income in 94603?: $76,723 (±$5,366), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 94603?: 14 USPS carrier routes with 10,329 residential and 507 business mailboxes (10,836 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 94603?: The closest, measured center to center: 94577 (1.6 mi, San Leandro), 94605 (2.1 mi, Oakland), 94621 (2.1 mi, Oakland), 94613 (2.9 mi, Oakland), 94601 (3.4 mi, Oakland) and 94502 (3.5 mi, Alameda).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.