78373 ZIP Code, Port Aransas, TX
78373 is a ZIP code in Port Aransas, Texas in Nueces County. It covers 19 square miles of land. The closest ZIP codes are 78362, 78419 and 78336. 3,348 people live here in 1,535 households. With about 177 people per square mile it is lightly settled, and most homes are owner-occupied (72%). Median household income is $91,106, above the Texas median of $78,476; the median age is 52.8, older than most ZIP codes.
Quick facts
- Mailing city: Port Aransas, TX
- County: Nueces County
- Land area: 19 sq mi
- Population: 3,348
- Median household income: $91,106
- Carrier routes: 4 (2,224 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 3,348 |
| Households | 1,535 |
| Median household income | $91,106 |
| Income per person | $62,548 |
| Median age | 52.8 |
| Homeowners | 72.1% |
| Median home value | $599,400 |
| Median rent | $2,294 |
| Bachelor's degree or higher | 37.0% |
| Average commute (minutes) | 17.5 |
| Households with kids under 18 | 21.8% |
| Moved in the past year | 20.2% |
| Below the poverty line | 10.5% |
| Broadband internet | 93.1% |
| Speak a non-English language at home | 2.9% |
Household income
| % of households | Value |
|---|---|
| <$10K | 4.4% |
| $10–15K | 0.5% |
| $15–25K | 5.8% |
| $25–35K | 7.4% |
| $35–50K | 4.8% |
| $50–75K | 23.9% |
| $75–100K | 10.0% |
| $100–150K | 18.2% |
| $150–200K | 7.8% |
| $200K+ | 17.2% |
Age
| % of all residents | Value |
|---|---|
| <10 | 10.1% |
| 10–19 | 8.1% |
| 20–24 | 3.5% |
| 25–34 | 9.0% |
| 35–44 | 5.2% |
| 45–54 | 16.2% |
| 55–64 | 14.1% |
| 65–74 | 23.8% |
| 75+ | 10.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 10.3% |
| Owned outright | 9.2% |
| Rented | 7.4% |
| Vacant | 73.1% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 51.0% |
| Townhome | 3.5% |
| 2–4 units | 5.3% |
| 5–19 units | 19.5% |
| 20+ units | 19.8% |
| Mobile / other | 0.9% |
Businesses in 78373
273 business establishments with 2,815 employees (ZIP Codes Business Patterns 2023).
- Accommodation and Food Services: 60
- Real Estate and Rental and Leasing: 55
- Retail Trade: 39
- Other Services (except Public Administration): 32
- Construction: 30
- Professional, Scientific, and Technical Services: 16
- Transportation and Warehousing: 9
- Finance and Insurance: 9
EDDM carrier routes
78373 has 4 USPS carrier routes with 2,224 residential and 319 business mailboxes. Open the EDDM route map.
Carrier routes in 78373
78373 has 4 USPS carrier routes (4 rural (R)) with 2,224 residential and 319 business mailboxes. Routes range from 163 homes (R007) to 835 homes (R003); the median route has 613 homes. The Census counted 1,535 households in 78373 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 0 |
| 500–749 | 2 |
| 750–999 | 1 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 78373 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R003 — Est. median household income $86,099, 835 homes
- Route R001 — Est. median household income $74,596, 713 homes
- Route R005 — Est. median household income $70,674, 513 homes
Select these 3 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 R001 — Est. families with children under 18 19.9%, 713 homes
- Route R003 — Est. families with children under 18 17.8%, 835 homes
- Route R005 — Est. families with children under 18 9.0%, 513 homes
Select these 3 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 R001 — Est. owner-occupied homes 68.4%, 713 homes
- Route R003 — Est. owner-occupied homes 68.3%, 835 homes
- Route R005 — Est. owner-occupied homes 63.1%, 513 homes
Select these 3 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 R001 — Est. residents who moved in the past year 20.1%, 713 homes
- Route R003 — Est. residents who moved in the past year 15.0%, 835 homes
- Route R005 — Est. residents who moved in the past year 14.4%, 513 homes
Select these 3 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 R005 — Est. homes built 2010 or later 17.9%, 513 homes
- Route R001 — Est. homes built 2010 or later 16.2%, 713 homes
- Route R003 — Est. homes built 2010 or later 15.4%, 835 homes
Select these 3 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R005 — USPS business mailboxes 163, 513 homes
- Route R003 — USPS business mailboxes 82, 835 homes
- Route R001 — USPS business mailboxes 59, 713 homes
- Route R007 — USPS business mailboxes 15, 163 homes
Select these 4 routes on the route map
Every carrier route in 78373
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R001 | Rural | 713 | 59 | $74,596 | 68.4% | 19.9% | 20.1% |
| R003 | Rural | 835 | 82 | $86,099 | 68.3% | 17.8% | 15.0% |
| R005 | Rural | 513 | 163 | $70,674 | 63.1% | 9.0% | 14.4% |
| R007 | Rural | 163 | 15 | $69,682 | 60.7% | 4.2% | 11.4% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78373 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
- 78362 — Ingleside city, TX (6.7 mi)
- 78419 — Corpus Christi city, TX (10.1 mi)
- 78336 — Aransas Pass city, TX (10.8 mi)
- 78374 — Portland city, TX (12.8 mi)
- 78412 — Corpus Christi city, TX (14.1 mi)
- 78359 — Gregory city, TX (14.9 mi)
- 78411 — Corpus Christi city, TX (15.9 mi)
- 78401 — Corpus Christi city, TX (16.5 mi)
Areas that include 78373
- Corpus Christi, TX ZIP codes — 19 ZIP codes
- Port Aransas, TX ZIP codes — 1 ZIP code
- Nueces County ZIP codes — 25 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 3 of 19: highest median household income in Nueces County
- No. 1 of 18: highest median home value in Nueces County
- No. 3 of 19: highest share of owner-occupied homes in Nueces County
- No. 4 of 19: highest share of residents who moved in during the past year in Nueces County
- No. 1 of 19: highest median age in Nueces County
Mail every home in 78373
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) 78373, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78373 in?
- 78373 is a Port Aransas, TX mailing address. By land area, 49% lies inside Corpus Christi, 46% lies inside Port Aransas and 5% lies inside Aransas Pass.
- What county is 78373 in?
- 78373 is in Nueces County.
- What is the population of 78373?
- About 3,348 people (±83), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,134.
- What is the median household income in 78373?
- $91,106 (±$24,830), 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 78373?
- 4 USPS carrier routes with 2,224 residential and 319 business mailboxes (2,546 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78373?
- The closest, measured center to center: 78362 (6.7 mi, Ingleside), 78419 (10.1 mi, Corpus Christi), 78336 (10.8 mi, Aransas Pass), 78374 (12.8 mi, Portland), 78412 (14.1 mi, Corpus Christi) and 78359 (14.9 mi, Gregory).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.