78404 ZIP Code, Corpus Christi, TX
78404 is a ZIP code in Corpus Christi, Texas in Nueces County. It covers 3.2 square miles of land. The closest ZIP codes are 78401, 78405 and 78416. 12,635 people live here in 5,396 households. At about 3,928 people per square mile it has suburban density, and owners and renters are mixed (57% own). Median household income is $61,280, below the Texas median of $78,476; the median age is 47.5, older than most ZIP codes.
Quick facts
- Mailing city: Corpus Christi, TX
- County: Nueces County
- Land area: 3.2 sq mi
- Population: 12,635
- Median household income: $61,280
- Carrier routes: 12 (6,129 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 12,635 |
| Households | 5,396 |
| Median household income | $61,280 |
| Income per person | $38,045 |
| Median age | 47.5 |
| Homeowners | 56.8% |
| Median home value | $189,000 |
| Median rent | $1,273 |
| Bachelor's degree or higher | 23.1% |
| Average commute (minutes) | 19.3 |
| Households with kids under 18 | 23.3% |
| Moved in the past year | 9.7% |
| Below the poverty line | 18.7% |
| Broadband internet | 87.0% |
| Speak a non-English language at home | 40.2% |
Household income
| % of households | Value |
|---|---|
| <$10K | 4.2% |
| $10–15K | 4.6% |
| $15–25K | 14.2% |
| $25–35K | 9.9% |
| $35–50K | 10.4% |
| $50–75K | 13.1% |
| $75–100K | 10.0% |
| $100–150K | 22.6% |
| $150–200K | 2.6% |
| $200K+ | 8.7% |
Age
| % of all residents | Value |
|---|---|
| <10 | 9.6% |
| 10–19 | 10.6% |
| 20–24 | 2.5% |
| 25–34 | 11.4% |
| 35–44 | 13.3% |
| 45–54 | 14.8% |
| 55–64 | 16.3% |
| 65–74 | 12.7% |
| 75+ | 9.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 19.5% |
| Owned outright | 27.2% |
| Rented | 35.3% |
| Vacant | 18.0% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 76.1% |
| Townhome | 2.7% |
| 2–4 units | 12.2% |
| 5–19 units | 4.3% |
| 20+ units | 3.9% |
| Mobile / other | 0.8% |
Businesses in 78404
389 business establishments with 7,080 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 131
- Accommodation and Food Services: 49
- Professional, Scientific, and Technical Services: 48
- Retail Trade: 35
- Other Services (except Public Administration): 29
- Finance and Insurance: 20
- Construction: 19
- Real Estate and Rental and Leasing: 15
EDDM carrier routes
78404 has 12 USPS carrier routes with 6,129 residential and 493 business mailboxes. Open the EDDM route map.
Carrier routes in 78404
78404 has 12 USPS carrier routes (12 city (C)) with 6,129 residential and 493 business mailboxes. Routes range from 337 homes (C024) to 665 homes (C032); the median route has 488 homes. The Census counted 5,396 households in 78404 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 7 |
| 500–749 | 5 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 78404 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route C021 — Est. median household income $108,237, 567 homes
- Route C031 — Est. median household income $105,203, 439 homes
- Route C024 — Est. median household income $103,519, 337 homes
- Route C030 — Est. median household income $100,321, 466 homes
- Route C038 — Est. median household income $90,674, 549 homes
Select these 5 routes on the route map
Often mailed by: Home services EDDM, Real estate EDDM postcards, Landscaping and lawn care mailers
Most families with kids
For tutoring, youth sports, pediatric dental, child care and family dining.
- Route C040 — Est. families with children under 18 35.9%, 487 homes
- Route C036 — Est. families with children under 18 31.0%, 651 homes
- Route C030 — Est. families with children under 18 28.4%, 466 homes
- Route C032 — Est. families with children under 18 23.1%, 665 homes
- Route C034 — Est. families with children under 18 22.8%, 472 homes
Select these 5 routes on the route map
Often mailed by: Dental practice EDDM, Healthcare and clinic mailers
Most homeowners
Owners decide on roofs, HVAC, lawns, solar and insurance; renters usually can't.
- Route C030 — Est. owner-occupied homes 71.9%, 466 homes
- Route C038 — Est. owner-occupied homes 70.1%, 549 homes
- Route C034 — Est. owner-occupied homes 64.3%, 472 homes
- Route C040 — Est. owner-occupied homes 64.0%, 487 homes
- Route C031 — Est. owner-occupied homes 63.4%, 439 homes
Select these 5 routes on the route map
Often mailed by: Roofing direct mail, HVAC postcards
Most new movers
New residents are still choosing a dentist, a gym and a lawn service.
- Route C030 — Est. residents who moved in the past year 18.7%, 466 homes
- Route C034 — Est. residents who moved in the past year 15.9%, 472 homes
- Route C038 — Est. residents who moved in the past year 15.0%, 549 homes
- Route C028 — Est. residents who moved in the past year 11.7%, 648 homes
- Route C036 — Est. residents who moved in the past year 9.9%, 651 homes
Select these 5 routes on the route map
Often mailed by: Restaurant EDDM menus and offers, Gym and fitness mailers
Newest homes
Newer subdivisions: landscaping, window treatments, fencing, security, home warranties.
- Route C036 — Est. homes built 2010 or later 5.0%, 651 homes
- Route C032 — Est. homes built 2010 or later 4.5%, 665 homes
- Route C038 — Est. homes built 2010 or later 3.7%, 549 homes
- Route C024 — Est. homes built 2010 or later 2.9%, 337 homes
- Route C029 — Est. homes built 2010 or later 2.7%, 360 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C034 — USPS business mailboxes 100, 472 homes
- Route C028 — USPS business mailboxes 86, 648 homes
- Route C037 — USPS business mailboxes 78, 488 homes
- Route C032 — USPS business mailboxes 66, 665 homes
- Route C021 — USPS business mailboxes 56, 567 homes
Select these 5 routes on the route map
Every carrier route in 78404
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C021 | City | 567 | 56 | $108,237 | 50.0% | 14.1% | 7.6% |
| C024 | City | 337 | 5 | $103,519 | 58.4% | 19.8% | 5.2% |
| C028 | City | 648 | 86 | $33,873 | 39.3% | 20.3% | 11.7% |
| C029 | City | 360 | 1 | $80,921 | 52.6% | 19.2% | 5.9% |
| C030 | City | 466 | 0 | $100,321 | 71.9% | 28.4% | 18.7% |
| C031 | City | 439 | 8 | $105,203 | 63.4% | 19.2% | 4.9% |
| C032 | City | 665 | 66 | $46,759 | 50.9% | 23.1% | 1.4% |
| C034 | City | 472 | 100 | $77,976 | 64.3% | 22.8% | 15.9% |
| C036 | City | 651 | 25 | $41,865 | 58.1% | 31.0% | 9.9% |
| C037 | City | 488 | 78 | $28,992 | 43.1% | 19.9% | 6.5% |
| C038 | City | 549 | 12 | $90,674 | 70.1% | 19.7% | 15.0% |
| C040 | City | 487 | 56 | $42,150 | 64.0% | 35.9% | 3.8% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78404 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
- 78401 — Corpus Christi city, TX (2 mi)
- 78405 — Corpus Christi city, TX (2.4 mi)
- 78416 — Corpus Christi city, TX (2.7 mi)
- 78411 — Corpus Christi city, TX (2.8 mi)
- 78408 — Corpus Christi city, TX (3.5 mi)
- 78407 — Corpus Christi city, TX (4 mi)
- 78417 — Corpus Christi city, TX (4.7 mi)
- 78412 — Corpus Christi city, TX (5.6 mi)
Areas that include 78404
- Corpus Christi, TX ZIP codes — 19 ZIP codes
- Nueces County ZIP codes — 25 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 2 of 19: highest median age in Nueces County
- No. 6 of 17: highest median household income in Corpus Christi, TX
- No. 2 of 17: highest median age in Corpus Christi, TX
Mail every home in 78404
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) 78404, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78404 in?
- 78404 is a Corpus Christi, TX mailing address. By land area, 100% lies inside Corpus Christi.
- What county is 78404 in?
- 78404 is in Nueces County.
- What is the population of 78404?
- About 12,635 people (±1,106), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 15,339.
- What is the median household income in 78404?
- $61,280 (±$10,356), compared with $78,476 for Texas as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 78404?
- 12 USPS carrier routes with 6,129 residential and 493 business mailboxes (6,622 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78404?
- The closest, measured center to center: 78401 (2 mi, Corpus Christi), 78405 (2.4 mi, Corpus Christi), 78416 (2.7 mi, Corpus Christi), 78411 (2.8 mi, Corpus Christi), 78408 (3.5 mi, Corpus Christi) and 78407 (4 mi, Corpus Christi).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.