94580 ZIP Code, San Lorenzo, CA
94580 is a ZIP code in San Lorenzo, California in Alameda County. It covers 3.3 square miles of land. The closest ZIP codes are 94579, 94578 and 94541. 29,420 people live here in 8,992 households. At about 8,856 people per square mile it is built up to city-neighborhood density, and most homes are owner-occupied (72%). Median household income is $110,729, above the California median of $99,122.
Quick facts
- Mailing city: San Lorenzo, CA
- County: Alameda County
- Land area: 3.3 sq mi
- Population: 29,420
- Median household income: $110,729
- Carrier routes: 17 (9,063 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 29,420 |
| Households | 8,992 |
| Median household income | $110,729 |
| Income per person | $42,879 |
| Median age | 41.9 |
| Homeowners | 71.9% |
| Median home value | $846,700 |
| Median rent | $2,274 |
| Bachelor's degree or higher | 26.1% |
| Average commute (minutes) | 32.8 |
| Households with kids under 18 | 35.4% |
| Moved in the past year | 5.9% |
| Below the poverty line | 5.5% |
| Broadband internet | 95.1% |
| Speak a non-English language at home | 58.5% |
Household income
| % of households | Value |
|---|---|
| <$10K | 4.4% |
| $10–15K | 1.0% |
| $15–25K | 5.5% |
| $25–35K | 3.4% |
| $35–50K | 6.1% |
| $50–75K | 10.3% |
| $75–100K | 14.3% |
| $100–150K | 21.9% |
| $150–200K | 10.5% |
| $200K+ | 22.6% |
Age
| % of all residents | Value |
|---|---|
| <10 | 10.1% |
| 10–19 | 10.7% |
| 20–24 | 5.5% |
| 25–34 | 14.8% |
| 35–44 | 12.6% |
| 45–54 | 14.5% |
| 55–64 | 15.3% |
| 65–74 | 11.4% |
| 75+ | 5.2% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 47.0% |
| Owned outright | 23.4% |
| Rented | 27.3% |
| Vacant | 2.3% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 83.1% |
| Townhome | 3.8% |
| 2–4 units | 2.4% |
| 5–19 units | 3.0% |
| 20+ units | 7.5% |
| Mobile / other | 0.2% |
Businesses in 94580
304 business establishments with 3,718 employees (ZIP Codes Business Patterns 2023).
- Other Services (except Public Administration): 44
- Construction: 42
- Accommodation and Food Services: 39
- Health Care and Social Assistance: 35
- Retail Trade: 33
- Transportation and Warehousing: 21
- Professional, Scientific, and Technical Services: 20
- Administrative and Support and Waste Management and Remediation Services: 19
EDDM carrier routes
94580 has 17 USPS carrier routes with 9,063 residential and 297 business mailboxes. Open the EDDM route map.
Carrier routes in 94580
94580 has 17 USPS carrier routes (17 city (C)) with 9,063 residential and 297 business mailboxes. Routes range from 396 homes (C013) to 644 homes (C012); the median route has 522 homes. The Census counted 8,992 households in 94580 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 6 |
| 500–749 | 11 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 94580 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C004 — USPS business mailboxes 77, 536 homes
- Route C006 — USPS business mailboxes 39, 529 homes
- Route C013 — USPS business mailboxes 39, 396 homes
- Route C015 — USPS business mailboxes 31, 496 homes
- Route C008 — USPS business mailboxes 25, 600 homes
Select these 5 routes on the route map
Every carrier route in 94580
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 553 | 16 | $158,119 | — | — | — |
| C003 | City | 457 | 2 | $84,052 | — | — | — |
| C004 | City | 536 | 77 | $158,119 | — | — | — |
| C005 | City | 483 | 18 | $119,575 | — | — | — |
| C006 | City | 529 | 39 | $158,119 | — | — | — |
| C007 | City | 626 | 15 | $103,917 | — | — | — |
| C008 | City | 600 | 25 | $90,822 | — | — | — |
| C009 | City | 459 | 2 | $107,347 | — | — | — |
| C012 | City | 644 | 1 | $112,847 | — | — | — |
| C013 | City | 396 | 39 | $107,347 | — | — | — |
| C014 | City | 503 | 13 | $107,347 | — | — | — |
| C015 | City | 496 | 31 | $121,098 | — | — | — |
| C016 | City | 515 | 1 | $119,575 | — | — | — |
| C018 | City | 624 | 0 | $119,575 | — | — | — |
| C019 | City | 623 | 12 | $88,745 | — | — | — |
| C020 | City | 497 | 6 | $65,722 | — | — | — |
| C021 | City | 522 | 0 | $119,575 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94580 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
- 94579 — San Leandro city, CA (1.4 mi)
- 94578 — San Leandro city, CA (2 mi)
- 94541 — Hayward city, CA (2.5 mi)
- 94577 — San Leandro city, CA (3.3 mi)
- 94545 — Hayward city, CA (3.4 mi)
- 94603 — Oakland city, CA (4.8 mi)
- 94546 — Castro Valley CDP, CA (4.9 mi)
- 94544 — Hayward city, CA (5.2 mi)
Areas that include 94580
- San Lorenzo, CA ZIP codes — 2 ZIP codes
- Ashland, CA ZIP codes — 3 ZIP codes
- Alameda County ZIP codes — 52 ZIP codes
- California ZIP code data
Where it ranks
Mail every home in 94580
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) 94580, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 94580 in?
- 94580 is a San Lorenzo, CA mailing address. By land area, 76% lies inside San Lorenzo and 23% lies inside Ashland.
- What county is 94580 in?
- 94580 is in Alameda County.
- What is the population of 94580?
- About 29,420 people (±1,669), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,590.
- What is the median household income in 94580?
- $110,729 (±$6,676), 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 94580?
- 17 USPS carrier routes with 9,063 residential and 297 business mailboxes (9,359 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 94580?
- The closest, measured center to center: 94579 (1.4 mi, San Leandro), 94578 (2 mi, San Leandro), 94541 (2.5 mi, Hayward), 94577 (3.3 mi, San Leandro), 94545 (3.4 mi, Hayward) and 94603 (4.8 mi, Oakland).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.