78583 ZIP Code, Rio Hondo, TX
78583 is a ZIP code in Rio Hondo, Texas in Cameron County. It covers 93 square miles of land. The closest ZIP codes are 78566, 78550 and 78597. 5,236 people live here in 1,952 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (79%). Median household income is $51,453, well below the Texas median of $78,476.
Quick facts
- Mailing city: Rio Hondo, TX
- County: Cameron County
- Land area: 93 sq mi
- Population: 5,236
- Median household income: $51,453
- Carrier routes: 3 (1,958 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 5,236 |
| Households | 1,952 |
| Median household income | $51,453 |
| Income per person | $26,268 |
| Median age | 44.3 |
| Homeowners | 79.0% |
| Median home value | $161,900 |
| Median rent | $698 |
| Bachelor's degree or higher | 15.7% |
| Average commute (minutes) | 23.4 |
| Households with kids under 18 | 33.7% |
| Moved in the past year | 13.6% |
| Below the poverty line | 17.6% |
| Broadband internet | 77.2% |
| Speak a non-English language at home | 63.1% |
Household income
| % of households | Value |
|---|---|
| <$10K | 8.5% |
| $10–15K | 8.7% |
| $15–25K | 7.8% |
| $25–35K | 12.2% |
| $35–50K | 11.5% |
| $50–75K | 18.5% |
| $75–100K | 8.1% |
| $100–150K | 15.1% |
| $150–200K | 4.3% |
| $200K+ | 5.2% |
Age
| % of all residents | Value |
|---|---|
| <10 | 10.6% |
| 10–19 | 14.4% |
| 20–24 | 7.3% |
| 25–34 | 9.0% |
| 35–44 | 9.4% |
| 45–54 | 15.9% |
| 55–64 | 10.2% |
| 65–74 | 9.8% |
| 75+ | 13.5% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 23.9% |
| Owned outright | 36.0% |
| Rented | 15.9% |
| Vacant | 24.2% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 72.9% |
| Townhome | 0.5% |
| 2–4 units | 1.4% |
| 5–19 units | 4.4% |
| 20+ units | 2.3% |
| Mobile / other | 18.6% |
Businesses in 78583
41 business establishments with 551 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 8
- Health Care and Social Assistance: 7
- Transportation and Warehousing: 4
- Other Services (except Public Administration): 4
- Construction: 3
- Manufacturing: 3
- Real Estate and Rental and Leasing: 3
- Administrative and Support and Waste Management and Remediation Services: 3
EDDM carrier routes
78583 has 3 USPS carrier routes with 1,958 residential and 63 business mailboxes. Open the EDDM route map.
Carrier routes in 78583
78583 has 3 USPS carrier routes (3 rural (R)) with 1,958 residential and 63 business mailboxes. Routes range from 530 homes (R303) to 777 homes (R301); the median route has 651 homes. The Census counted 1,952 households in 78583 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 0 |
| 500–749 | 2 |
| 750–999 | 1 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 78583 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R302 — Est. median household income $61,945, 651 homes
- Route R301 — Est. median household income $60,415, 777 homes
- Route R303 — Est. median household income $57,841, 530 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 R303 — Est. families with children under 18 42.2%, 530 homes
- Route R301 — Est. families with children under 18 40.2%, 777 homes
- Route R302 — Est. families with children under 18 32.2%, 651 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 R301 — Est. owner-occupied homes 90.3%, 777 homes
- Route R302 — Est. owner-occupied homes 89.5%, 651 homes
- Route R303 — Est. owner-occupied homes 82.7%, 530 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 R302 — Est. residents who moved in the past year 20.9%, 651 homes
- Route R301 — Est. residents who moved in the past year 15.7%, 777 homes
- Route R303 — Est. residents who moved in the past year 9.9%, 530 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 R302 — Est. homes built 2010 or later 23.7%, 651 homes
- Route R301 — Est. homes built 2010 or later 23.4%, 777 homes
- Route R303 — Est. homes built 2010 or later 12.9%, 530 homes
Select these 3 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R302 — USPS business mailboxes 31, 651 homes
- Route R301 — USPS business mailboxes 18, 777 homes
- Route R303 — USPS business mailboxes 14, 530 homes
Select these 3 routes on the route map
Every carrier route in 78583
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R301 | Rural | 777 | 18 | $60,415 | 90.3% | 40.2% | 15.7% |
| R302 | Rural | 651 | 31 | $61,945 | 89.5% | 32.2% | 20.9% |
| R303 | Rural | 530 | 14 | $57,841 | 82.7% | 42.2% | 9.9% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78583 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
- 78566 — Brownsville city, TX (11.5 mi)
- 78550 — Harlingen city, TX (12.1 mi)
- 78597 — South Padre Island town, TX (12.1 mi)
- 78586 — San Benito city, TX (16.2 mi)
- 78535 — Combes town, TX (16.3 mi)
- 78598 — Port Mansfield CDP, TX (18 mi)
- 78575 — Brownsville city, TX (18.1 mi)
- 78590 — San Perlita city, TX (18.1 mi)
Areas that include 78583
- Rio Hondo, TX ZIP codes — 2 ZIP codes
- La Tina Ranch, TX ZIP codes — 1 ZIP code
- Arroyo Gardens, TX ZIP codes — 2 ZIP codes
- Cameron County ZIP codes — 16 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 1 of 13: highest share of owner-occupied homes in Cameron County
- No. 1 of 13: highest share of residents who moved in during the past year in Cameron County
- No. 3 of 13: highest median age in Cameron County
Mail every home in 78583
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) 78583, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78583 in?
- 78583 is a Rio Hondo, TX mailing address. By land area, 8% lies inside La Tina Ranch and 1% lies inside Rio Hondo; the rest is outside any Census-defined city or community.
- What county is 78583 in?
- 78583 is in Cameron County.
- What is the population of 78583?
- About 5,236 people (±692), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,869.
- What is the median household income in 78583?
- $51,453 (±$19,967), 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 78583?
- 3 USPS carrier routes with 1,958 residential and 63 business mailboxes (2,021 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78583?
- The closest, measured center to center: 78566 (11.5 mi, Brownsville), 78550 (12.1 mi, Harlingen), 78597 (12.1 mi, South Padre Island), 78586 (16.2 mi, San Benito), 78535 (16.3 mi, Combes) and 78598 (18 mi, Port Mansfield).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.