92104 ZIP Code, San Diego, CA
92104 is a ZIP code in San Diego, California in San Diego County. It covers 3.7 square miles of land. The closest ZIP codes are 92116, 92134 and 92102. 47,410 people live here in 23,661 households. It is densely built, at about 12,831 people per square mile, and most households rent (29% own). Median household income is $94,014, close to the California median of $99,122.
Quick facts
- Mailing city: San Diego, CA
- County: San Diego County
- Land area: 3.7 sq mi
- Population: 47,410
- Median household income: $94,014
- Carrier routes: 35 (23,640 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 47,410 |
| Households | 23,661 |
| Median household income | $94,014 |
| Income per person | $61,459 |
| Median age | 35.2 |
| Homeowners | 28.8% |
| Median home value | $914,700 |
| Median rent | $1,993 |
| Bachelor's degree or higher | 54.8% |
| Average commute (minutes) | 22.2 |
| Households with kids under 18 | 15.4% |
| Moved in the past year | 14.1% |
| Below the poverty line | 11.0% |
| Broadband internet | 95.8% |
| Speak a non-English language at home | 31.6% |
Household income
| % of households | Value |
|---|---|
| <$10K | 3.5% |
| $10–15K | 1.7% |
| $15–25K | 3.8% |
| $25–35K | 5.9% |
| $35–50K | 7.5% |
| $50–75K | 14.8% |
| $75–100K | 16.0% |
| $100–150K | 18.9% |
| $150–200K | 13.2% |
| $200K+ | 14.7% |
Age
| % of all residents | Value |
|---|---|
| <10 | 7.7% |
| 10–19 | 7.3% |
| 20–24 | 4.9% |
| 25–34 | 29.4% |
| 35–44 | 19.7% |
| 45–54 | 12.3% |
| 55–64 | 9.1% |
| 65–74 | 6.8% |
| 75+ | 2.6% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 20.8% |
| Owned outright | 6.5% |
| Rented | 67.1% |
| Vacant | 5.6% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 30.2% |
| Townhome | 7.2% |
| 2–4 units | 8.5% |
| 5–19 units | 37.7% |
| 20+ units | 16.0% |
| Mobile / other | 0.4% |
Businesses in 92104
1,056 business establishments with 9,070 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 195
- Accommodation and Food Services: 182
- Other Services (except Public Administration): 133
- Retail Trade: 132
- Health Care and Social Assistance: 93
- Real Estate and Rental and Leasing: 79
- Construction: 48
- Finance and Insurance: 43
EDDM carrier routes
92104 has 35 USPS carrier routes with 23,640 residential and 930 business mailboxes. Open the EDDM route map.
Carrier routes in 92104
92104 has 35 USPS carrier routes (35 city (C)) with 23,640 residential and 930 business mailboxes. Routes range from 176 homes (C005) to 1,120 homes (C003); the median route has 653 homes. The Census counted 23,661 households in 92104 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 5 |
| 500–749 | 17 |
| 750–999 | 10 |
| 1,000–1,499 | 2 |
| 1,500+ | 0 |
Best routes in 92104 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C036 — USPS business mailboxes 211, 737 homes
- Route C037 — USPS business mailboxes 93, 773 homes
- Route C007 — USPS business mailboxes 89, 653 homes
- Route C005 — USPS business mailboxes 68, 176 homes
- Route C022 — USPS business mailboxes 60, 516 homes
Select these 5 routes on the route map
Every carrier route in 92104
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 987 | 37 | $91,101 | — | — | — |
| C002 | City | 963 | 4 | $111,484 | — | — | — |
| C003 | City | 1,120 | 42 | $107,112 | — | — | — |
| C004 | City | 1,057 | 14 | $52,594 | — | — | — |
| C005 | City | 176 | 68 | $82,503 | — | — | — |
| C007 | City | 653 | 89 | $76,758 | — | — | — |
| C008 | City | 683 | 31 | $99,621 | — | — | — |
| C009 | City | 655 | 4 | $132,571 | — | — | — |
| C010 | City | 340 | 0 | $99,621 | — | — | — |
| C011 | City | 713 | 3 | $93,975 | — | — | — |
| C012 | City | 770 | 1 | $100,499 | — | — | — |
| C014 | City | 929 | 5 | $74,024 | — | — | — |
| C015 | City | 566 | 0 | $164,536 | — | — | — |
| C016 | City | 434 | 1 | $164,917 | — | — | — |
| C017 | City | 825 | 2 | $76,171 | — | — | — |
| C018 | City | 338 | 1 | $110,183 | — | — | — |
| C019 | City | 520 | 17 | $99,621 | — | — | — |
| C020 | City | 443 | 0 | $164,917 | — | — | — |
| C021 | City | 569 | 1 | $164,536 | — | — | — |
| C022 | City | 516 | 60 | $88,944 | — | — | — |
| C023 | City | 984 | 46 | $61,437 | — | — | — |
| C024 | City | 600 | 0 | $61,437 | — | — | — |
| C025 | City | 587 | 0 | $95,824 | — | — | — |
| C026 | City | 629 | 27 | $76,758 | — | — | — |
| C027 | City | 535 | 35 | $126,385 | — | — | — |
| C028 | City | 549 | 46 | $164,536 | — | — | — |
| C030 | City | 731 | 3 | $52,594 | — | — | — |
| C031 | City | 407 | 0 | $110,183 | — | — | — |
| C032 | City | 628 | 0 | $79,431 | — | — | — |
| C033 | City | 839 | 9 | $78,450 | — | — | — |
| C034 | City | 589 | 8 | $164,536 | — | — | — |
| C035 | City | 908 | 18 | $100,499 | — | — | — |
| C036 | City | 737 | 211 | $82,503 | — | — | — |
| C037 | City | 773 | 93 | $89,398 | — | — | — |
| C038 | City | 887 | 54 | $93,975 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 92104 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
- 92116 — San Diego city, CA (1.6 mi)
- 92134 — San Diego city, CA (1.6 mi)
- 92102 — San Diego city, CA (1.9 mi)
- 92105 — San Diego city, CA (2.2 mi)
- 92103 — San Diego city, CA (2.3 mi)
- 92108 — San Diego city, CA (2.4 mi)
- 92101 — San Diego city, CA (3.1 mi)
- 92132 — San Diego city, CA (3.2 mi)
Areas that include 92104
- San Diego, CA ZIP codes — 48 ZIP codes
- San Diego County ZIP codes — 116 ZIP codes
- California ZIP code data
Where it ranks
- No. 20 of 98: lowest median age in San Diego County
- No. 24 of 94: fastest population growth in San Diego County
- No. 8 of 38: fastest population growth in San Diego, CA
Mail every home in 92104
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.
San Diego EDDM mailing
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 92104, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 92104 in?
- 92104 is a San Diego, CA mailing address. By land area, 100% lies inside San Diego.
- What county is 92104 in?
- 92104 is in San Diego County.
- What is the population of 92104?
- About 47,410 people (±2,450), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 44,265.
- What is the median household income in 92104?
- $94,014 (±$3,592), 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 92104?
- 35 USPS carrier routes with 23,640 residential and 930 business mailboxes (24,570 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 92104?
- The closest, measured center to center: 92116 (1.6 mi, San Diego), 92134 (1.6 mi, San Diego), 92102 (1.9 mi, San Diego), 92105 (2.2 mi, San Diego), 92103 (2.3 mi, San Diego) and 92108 (2.4 mi, San Diego).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.