What city is 94306 in?

94306 is a Palo Alto, CA mailing address. By land area, 100% lies inside Palo Alto.

What county is 94306 in?

94306 is in Santa Clara County.

What is the population of 94306?

About 27,183 people (±1,550), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 28,659.

What is the median household income in 94306?

$210,000 (±$24,403), 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 94306?

27 USPS carrier routes with 12,003 residential and 900 business mailboxes (12,902 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 94306?

The closest, measured center to center: 94301 (2.2 mi, Palo Alto), 94305 (2.2 mi, Stanford), 94304 (2.4 mi, Palo Alto), 94303 (3 mi, Palo Alto), 94043 (3.4 mi, Mountain View) and 94040 (3.5 mi, Mountain View).

94306 ZIP Code, Palo Alto, CA

94306 is a ZIP code in Palo Alto, California in Santa Clara County. It covers 4.1 square miles of land. The closest ZIP codes are 94301, 94305 and 94304. 27,183 people live here in 10,640 households. At about 6,654 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (53% own). Median household income is $210,000, well above the California median of $99,122.

Quick facts

Mailing city: Palo Alto, CA
County: Santa Clara County
Land area: 4.1 sq mi
Population: 27,183
Median household income: $210,000
Carrier routes: 27 (12,003 homes)

Key figures

Measure	Value
Residents	27,183
Households	10,640
Median household income	$210,000
Income per person	$114,197
Median age	42.3
Homeowners	52.6%
Median home value	$2,000,000+
Median rent	$2,994
Bachelor's degree or higher	80.9%
Average commute (minutes)	22
Households with kids under 18	30.5%
Moved in the past year	12.0%
Below the poverty line	8.9%
Broadband internet	97.6%
Speak a non-English language at home	42.6%

Household income

% of households	Value
<$10K	3.9%
$10–15K	2.4%
$15–25K	2.5%
$25–35K	2.2%
$35–50K	3.9%
$50–75K	6.8%
$75–100K	5.1%
$100–150K	12.8%
$150–200K	9.3%
$200K+	51.1%

Age

% of all residents	Value
<10	9.5%
10–19	14.6%
20–24	4.4%
25–34	12.0%
35–44	12.3%
45–54	16.3%
55–64	12.4%
65–74	10.5%
75+	8.0%

Tenure

% of housing units	Value
Owned, with mortgage	27.5%
Owned outright	20.2%
Rented	42.9%
Vacant	9.4%

Type of building

% of housing units	Value
Detached house	54.7%
Townhome	5.9%
2–4 units	6.1%
5–19 units	12.9%
20+ units	19.5%
Mobile / other	0.8%

Businesses in 94306

1,079 business establishments with 16,926 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 313
Health Care and Social Assistance: 156
Accommodation and Food Services: 101
Information: 97
Other Services (except Public Administration): 77
Finance and Insurance: 63
Real Estate and Rental and Leasing: 59
Retail Trade: 51

EDDM carrier routes

94306 has 27 USPS carrier routes with 12,003 residential and 900 business mailboxes. Open the EDDM route map.

Carrier routes in 94306

94306 has 27 USPS carrier routes (27 city (C)) with 12,003 residential and 900 business mailboxes. Routes range from 279 homes (C108) to 867 homes (C103); the median route has 435 homes. The Census counted 10,640 households in 94306 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	20
500–749	6
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 94306 for…

Most businesses

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

Route C039 — USPS business mailboxes 364, 489 homes
Route C044 — USPS business mailboxes 150, 390 homes
Route C043 — USPS business mailboxes 72, 524 homes
Route C103 — USPS business mailboxes 54, 867 homes
Route C050 — USPS business mailboxes 35, 669 homes

Select these 5 routes on the route map

Every carrier route in 94306

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C039	City	489	364	$197,223	—	—	—
C040	City	317	28	$200,001+	—	—	—
C041	City	379	2	$77,430	—	—	—
C042	City	299	1	$197,223	—	—	—
C043	City	524	72	$77,430	—	—	—
C044	City	390	150	$200,001+	—	—	—
C045	City	315	0	$200,001+	—	—	—
C046	City	362	1	$200,001+	—	—	—
C050	City	669	35	$200,001+	—	—	—
C053	City	435	32	$200,001+	—	—	—
C057	City	413	4	$200,001+	—	—	—
C059	City	318	3	$200,001+	—	—	—
C060	City	331	3	$200,001+	—	—	—
C063	City	623	22	$200,001+	—	—	—
C065	City	609	16	$200,001+	—	—	—
C066	City	573	25	$133,198	—	—	—
C067	City	456	3	$121,391	—	—	—
C069	City	296	0	$200,001+	—	—	—
C071	City	491	6	$200,001+	—	—	—
C081	City	316	5	$200,001+	—	—	—
C082	City	399	0	$200,001+	—	—	—
C084	City	532	7	$200,001+	—	—	—
C085	City	444	9	$200,001+	—	—	—
C100	City	436	31	$200,001+	—	—	—
C101	City	441	2	$200,001+	—	—	—
C103	City	867	54	$200,001+	—	—	—
C108	City	279	25	$183,402	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94306 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

94301 — Palo Alto city, CA (2.2 mi)
94305 — Stanford CDP, CA (2.2 mi)
94304 — Palo Alto city, CA (2.4 mi)
94303 — Palo Alto city, CA (3 mi)
94043 — Mountain View city, CA (3.4 mi)
94040 — Mountain View city, CA (3.5 mi)
94041 — Mountain View city, CA (3.6 mi)
94025 — Menlo Park city, CA (3.7 mi)

Areas that include 94306

Palo Alto, CA ZIP codes — 6 ZIP codes
Santa Clara County ZIP codes — 62 ZIP codes
California ZIP code data

Where it ranks

Mail every home in 94306

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) 94306, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 94306 in?: 94306 is a Palo Alto, CA mailing address. By land area, 100% lies inside Palo Alto.
What county is 94306 in?: 94306 is in Santa Clara County.
What is the population of 94306?: About 27,183 people (±1,550), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 28,659.
What is the median household income in 94306?: $210,000 (±$24,403), 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 94306?: 27 USPS carrier routes with 12,003 residential and 900 business mailboxes (12,902 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 94306?: The closest, measured center to center: 94301 (2.2 mi, Palo Alto), 94305 (2.2 mi, Stanford), 94304 (2.4 mi, Palo Alto), 94303 (3 mi, Palo Alto), 94043 (3.4 mi, Mountain View) and 94040 (3.5 mi, Mountain View).

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