94587 ZIP Code, Union City, CA

94587 is a ZIP code in Union City, California in Alameda County. It covers 20 square miles of land. The closest ZIP codes are 94544, 94555 and 94545. 67,464 people live here in 21,240 households, more than in 9 of every 10 California ZIP codes. At about 3,437 people per square mile it has suburban density, and owners and renters are mixed (65% own). Median household income is $133,715, above the California median of $99,122.

Quick facts

Key figures

MeasureValue
Residents67,464
Households21,240
Median household income$133,715
Income per person$57,977
Median age43
Homeowners64.7%
Median home value$1,104,900
Median rent$2,713
Bachelor's degree or higher45.1%
Average commute (minutes)31.9
Households with kids under 1831.8%
Moved in the past year10.0%
Below the poverty line7.2%
Broadband internet95.1%
Speak a non-English language at home63.1%

Household income

% of householdsValue
<$10K3.7%
$10–15K1.5%
$15–25K3.8%
$25–35K3.1%
$35–50K4.3%
$50–75K9.8%
$75–100K10.8%
$100–150K17.9%
$150–200K10.7%
$200K+34.2%

Age

% of all residentsValue
<108.6%
10–1910.6%
20–245.0%
25–3414.6%
35–4414.6%
45–5413.5%
55–6413.6%
65–7411.0%
75+8.5%

Tenure

% of housing unitsValue
Owned, with mortgage42.4%
Owned outright20.6%
Rented33.9%
Vacant3.0%

Type of building

% of housing unitsValue
Detached house57.8%
Townhome12.4%
2–4 units6.5%
5–19 units4.8%
20+ units13.2%
Mobile / other5.3%

Businesses in 94587

1,362 business establishments with 22,663 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

94587 has 41 USPS carrier routes with 21,795 residential and 1,247 business mailboxes. Open the EDDM route map.

Carrier routes in 94587

94587 has 41 USPS carrier routes (41 city (C)) with 21,795 residential and 1,247 business mailboxes. Routes range from 264 homes (C003) to 1,083 homes (C005); the median route has 512 homes. The Census counted 21,240 households in 94587 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–49918
500–74920
750–9991
1,000–1,4992
1,500+0

Best routes in 94587 for…

Most businesses

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

  1. Route C003 — USPS business mailboxes 216, 264 homes
  2. Route C043 — USPS business mailboxes 126, 653 homes
  3. Route C027 — USPS business mailboxes 120, 387 homes
  4. Route C041 — USPS business mailboxes 119, 407 homes
  5. Route C032 — USPS business mailboxes 108, 403 homes

Select these 5 routes on the route map

Every carrier route in 94587

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City43261$120,339———
C003City264216$134,585———
C005City1,0833$105,627———
C007City51716$106,394———
C008City1,05112$128,498———
C009City44811$120,631———
C010City51214$134,585———
C011City4307$156,277———
C012City5742$64,255———
C013City56914$140,016———
C014City5210$128,498———
C015City4320$76,136———
C016City5732$166,560———
C018City4100$168,951———
C019City4300$113,331———
C020City5870$200,001+———
C021City35296$181,380———
C022City4746$113,331———
C023City6361$180,962———
C024City5014$106,394———
C025City6000$200,001+———
C026City64418$85,331———
C027City387120$181,380———
C028City3860$168,951———
C029City5471$76,136———
C030City72316$113,331———
C031City6612$120,631———
C032City403108$131,780———
C033City5161$200,001+———
C034City39057$172,514———
C035City5301$192,812———
C036City4530$158,086———
C037City29876$100,223———
C038City50317$200,001+———
C039City4758$107,450———
C040City5733$168,418———
C041City407119$112,455———
C042City56917$113,331———
C043City653126$200,001+———
C045City8443$200,001+———
C046City43789$120,339———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94587 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

Areas that include 94587

Where it ranks

Mail every home in 94587

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) 94587, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 94587 in?
94587 is a Union City, CA mailing address. By land area, 63% lies inside Union City and 37% lies inside Hayward.
What county is 94587 in?
94587 is in Alameda County.
What is the population of 94587?
About 67,464 people (±72), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 70,121.
What is the median household income in 94587?
$133,715 (±$8,054), 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 94587?
41 USPS carrier routes with 21,795 residential and 1,247 business mailboxes (23,037 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 94587?
The closest, measured center to center: 94544 (3.2 mi, Hayward), 94555 (3.2 mi, Fremont), 94545 (3.8 mi, Hayward), 94536 (5.3 mi, Fremont), 94542 (5.3 mi, Hayward) and 94541 (5.8 mi, Hayward).

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