78374 ZIP Code, Portland, TX
78374 is a ZIP code in Portland, Texas in San Patricio County. It covers 19 square miles of land. The closest ZIP codes are 78359, 78362 and 78336. 20,408 people live here in 7,502 households. At about 1,100 people per square mile it has suburban density, and owners and renters are mixed (63% own). Median household income is $83,504, close to the Texas median of $78,476; 21% of residents moved in during the past year.
Quick facts
- Mailing city: Portland, TX
- County: San Patricio County
- Land area: 19 sq mi
- Population: 20,408
- Median household income: $83,504
- Carrier routes: 11 (8,623 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 20,408 |
| Households | 7,502 |
| Median household income | $83,504 |
| Income per person | $38,134 |
| Median age | 34.4 |
| Homeowners | 62.7% |
| Median home value | $233,800 |
| Median rent | $1,580 |
| Bachelor's degree or higher | 25.7% |
| Average commute (minutes) | 20.5 |
| Households with kids under 18 | 32.7% |
| Moved in the past year | 21.4% |
| Below the poverty line | 9.1% |
| Broadband internet | 95.4% |
| Speak a non-English language at home | 22.8% |
Household income
| % of households | Value |
|---|---|
| <$10K | 3.8% |
| $10–15K | 2.6% |
| $15–25K | 3.0% |
| $25–35K | 7.0% |
| $35–50K | 9.5% |
| $50–75K | 18.5% |
| $75–100K | 15.4% |
| $100–150K | 18.8% |
| $150–200K | 11.1% |
| $200K+ | 10.1% |
Age
| % of all residents | Value |
|---|---|
| <10 | 14.8% |
| 10–19 | 14.0% |
| 20–24 | 7.3% |
| 25–34 | 14.5% |
| 35–44 | 14.3% |
| 45–54 | 12.0% |
| 55–64 | 9.0% |
| 65–74 | 7.7% |
| 75+ | 6.3% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 31.4% |
| Owned outright | 24.3% |
| Rented | 32.8% |
| Vacant | 11.6% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 71.0% |
| Townhome | 1.1% |
| 2–4 units | 3.1% |
| 5–19 units | 17.4% |
| 20+ units | 5.4% |
| Mobile / other | 1.9% |
Businesses in 78374
337 business establishments with 4,472 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 54
- Accommodation and Food Services: 51
- Retail Trade: 42
- Finance and Insurance: 38
- Other Services (except Public Administration): 34
- Professional, Scientific, and Technical Services: 27
- Construction: 23
- Administrative and Support and Waste Management and Remediation Services: 14
EDDM carrier routes
78374 has 11 USPS carrier routes with 8,623 residential and 385 business mailboxes. Open the EDDM route map.
Carrier routes in 78374
78374 has 11 USPS carrier routes (10 city (C), 1 rural (R)) with 8,623 residential and 385 business mailboxes. Routes range from 329 homes (C003) to 1,083 homes (C005); the median route has 865 homes. The Census counted 7,502 households in 78374 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 2 |
| 500–749 | 3 |
| 750–999 | 4 |
| 1,000–1,499 | 2 |
| 1,500+ | 0 |
Best routes in 78374 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route C008 — Est. median household income $131,447, 865 homes
- Route C009 — Est. median household income $106,187, 742 homes
- Route C003 — Est. median household income $94,513, 329 homes
- Route C002 — Est. median household income $93,337, 548 homes
- Route C004 — Est. median household income $85,803, 424 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 R001 — Est. families with children under 18 37.1%, 951 homes
- Route C008 — Est. families with children under 18 36.9%, 865 homes
- Route C002 — Est. families with children under 18 35.3%, 548 homes
- Route C004 — Est. families with children under 18 35.2%, 424 homes
- Route C010 — Est. families with children under 18 35.1%, 1,061 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 C003 — Est. owner-occupied homes 84.7%, 329 homes
- Route C002 — Est. owner-occupied homes 83.0%, 548 homes
- Route C004 — Est. owner-occupied homes 81.4%, 424 homes
- Route R001 — Est. owner-occupied homes 78.8%, 951 homes
- Route C008 — Est. owner-occupied homes 66.1%, 865 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 C008 — Est. residents who moved in the past year 29.5%, 865 homes
- Route C005 — Est. residents who moved in the past year 27.5%, 1,083 homes
- Route C007 — Est. residents who moved in the past year 26.8%, 968 homes
- Route C010 — Est. residents who moved in the past year 23.6%, 1,061 homes
- Route C003 — Est. residents who moved in the past year 23.5%, 329 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 R001 — Est. homes built 2010 or later 31.2%, 951 homes
- Route C008 — Est. homes built 2010 or later 28.4%, 865 homes
- Route C006 — Est. homes built 2010 or later 22.8%, 979 homes
- Route C005 — Est. homes built 2010 or later 15.4%, 1,083 homes
- Route C004 — Est. homes built 2010 or later 14.2%, 424 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C006 — USPS business mailboxes 109, 979 homes
- Route C003 — USPS business mailboxes 102, 329 homes
- Route C007 — USPS business mailboxes 59, 968 homes
- Route C001 — USPS business mailboxes 53, 673 homes
- Route C004 — USPS business mailboxes 22, 424 homes
Select these 5 routes on the route map
Every carrier route in 78374
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 673 | 53 | $79,073 | 59.5% | 34.0% | 16.3% |
| C002 | City | 548 | 0 | $93,337 | 83.0% | 35.3% | 21.7% |
| C003 | City | 329 | 102 | $94,513 | 84.7% | 33.5% | 23.5% |
| C004 | City | 424 | 22 | $85,803 | 81.4% | 35.2% | 16.8% |
| C005 | City | 1,083 | 6 | $72,303 | 52.6% | 34.7% | 27.5% |
| C006 | City | 979 | 109 | $78,997 | 50.8% | 18.5% | 19.3% |
| C007 | City | 968 | 59 | $73,911 | 50.4% | 31.3% | 26.8% |
| C008 | City | 865 | 1 | $131,447 | 66.1% | 36.9% | 29.5% |
| C009 | City | 742 | 8 | $106,187 | 62.5% | 26.3% | 12.7% |
| C010 | City | 1,061 | 4 | $72,636 | 54.0% | 35.1% | 23.6% |
| R001 | Rural | 951 | 21 | $74,150 | 78.8% | 37.1% | 11.6% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78374 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
- 78359 — Gregory city, TX (3.1 mi)
- 78362 — Ingleside city, TX (6.7 mi)
- 78336 — Aransas Pass city, TX (8.4 mi)
- 78401 — Corpus Christi city, TX (8.6 mi)
- 78402 — Corpus Christi city, TX (8.8 mi)
- 78390 — Portland city, TX (9 mi)
- 78404 — Corpus Christi city, TX (10.1 mi)
- 78407 — Corpus Christi city, TX (10.5 mi)
Areas that include 78374
- Portland, TX ZIP codes — 2 ZIP codes
- Ingleside, TX ZIP codes — 2 ZIP codes
- San Patricio County ZIP codes — 9 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 1 of 8: highest median household income in San Patricio County
- No. 1 of 8: highest median home value in San Patricio County
- No. 1 of 8: highest share of residents who moved in during the past year in San Patricio County
- No. 2 of 8: lowest median age in San Patricio County
- No. 2 of 8: fastest population growth in San Patricio County
Mail every home in 78374
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) 78374, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78374 in?
- 78374 is a Portland, TX mailing address. By land area, 50% lies inside Portland and 10% lies inside Ingleside; the rest is outside any Census-defined city or community.
- What county is 78374 in?
- 78374 is in San Patricio County.
- What is the population of 78374?
- About 20,408 people (±126), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 20,281.
- What is the median household income in 78374?
- $83,504 (±$8,041), 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 78374?
- 11 USPS carrier routes with 8,623 residential and 385 business mailboxes (9,008 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78374?
- The closest, measured center to center: 78359 (3.1 mi, Gregory), 78362 (6.7 mi, Ingleside), 78336 (8.4 mi, Aransas Pass), 78401 (8.6 mi, Corpus Christi), 78402 (8.8 mi, Corpus Christi) and 78390 (9 mi, Portland).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.