Rio Hondo is a city in Cameron County, Texas, home to about 1,865 people across 1.7 square miles. It has no ZIP code of its own: it’s part of 78550 and 78583.
Homes sold for a median of $144 per square foot across 2 ZIP codes in the three months ending August 2026, and 0 of 2 were seller’s markets.
Mostly Harlingen; part is in Rio Hondo
Part is in Rio Hondo, part in Brownsville and La Tina Ranch
Each card is that ZIP code’s whole market, including any part outside Rio Hondo. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Rio Hondo’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Rio Hondo well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | San Antonio International Airport (SAT)235 miles away |
|---|---|
| Closer regional airport | Valley International Airport (HRL)4 miles away |
| Nearest city of 250,000+ | Corpus Christi, TX109 miles away |
| Nearest city of 1 million+ | San Antonio, TX231 miles away |
Straight-line distances from the center of Rio Hondo; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Rio Hondo had 2,021 residents in the 2020 census, up 4% since 2000.
It’s the 763rd largest of 1,778 towns in Texas by population.
Cameron County grew from 16,095 residents in 1900 to 421,017 in 2020.
Cameron County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 97°F in summer, and winter lows average 50°F. About 24.1 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Harlingen Rio Grande Ap, TX weather station (4 miles away).
123,749 jobs at 6,732 businesses in Cameron County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
961 doctors and other health care providers list an office in Rio Hondo’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 155 |
|---|---|
| Specialist doctors | 215 |
| Dentists | 46 |
| Nurse practitioners and physician assistants | 257 |
| Mental health providers | 161 |
| Physical and occupational therapists | 102 |
| Optometrists | 12 |
| Chiropractors | 13 |
| Pharmacies | 30 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (1 nearby)
Libraries
Museums
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Harlingen CISD, Horizon Montessori Public Schools, Rio Hondo ISD. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Austin ElHarlingen | Pre-K–5 | 295 | Public | 6.1 mi |
| Ben Milam ElHarlingen | Pre-K–5 | 389 | Public | 8.1 mi |
| Bonham ElHarlingen | Pre-K–5 | 504 | Public | 5.1 mi |
| Bowie ElHarlingen | Pre-K–5 | 335 | Public | 7.1 mi |
| Crockett ElHarlingen | Pre-K–5 | 234 | Public | 7.5 mi |
| Hcisd Early Childhood AcademyHarlingen | Pre-K–K | 255 | Public | 6.0 mi |
| Horizon Montessori III - Stem AcademyHarlingen | Pre-K–8 | 291 | Charter | 6.0 mi |
| Houston ElHarlingen | Pre-K–5 | 420 | Public | 6.8 mi |
| Jefferson ElHarlingen | Pre-K–5 | 259 | Public | 7.4 mi |
| Lamar ElHarlingen | Pre-K–5 | 401 | Public | 7.8 mi |
| Lee H Means ElHarlingen | Pre-K–5 | 730 | Public | 5.6 mi |
| Long ElHarlingen | Pre-K–5 | 475 | Public | 6.0 mi |
| Rio Hondo ElRio Hondo | Pre-K–4 | 527 | Public | 1.6 mi |
| Stuart Place ElHarlingen | Pre-K–5 | 578 | Public | 10.6 mi |
| Travis ElHarlingen | Pre-K–5 | 294 | Public | 6.4 mi |
| Treasure Hills ElHarlingen | Pre-K–5 | 758 | Public | 5.4 mi |
| Zavala ElHarlingen | Pre-K–5 | 332 | Public | 6.6 mi |
| Rio Hondo MiddleRio Hondo | 5–8 | 434 | Public | 1.5 mi |
| Coakley MiddleHarlingen | 6–8 | 687 | Public | 6.6 mi |
| Memorial MiddleHarlingen | 6–8 | 705 | Public | 5.1 mi |
| Secondary Alter CtrHarlingen | 6–12 | 59 | Alternative Education | 6.2 mi |
| Vernon MiddleHarlingen | 6–8 | 631 | Public | 5.9 mi |
| Harlingen School of Health ProfessionsHarlingen | 8–12 | 448 | Public | 5.0 mi |
| Edna Tamayo HouseHarlingen | 9–10 | 8 | Alternative Education | 6.2 mi |
| Harlingen Collegiate H SHarlingen | 9–12 | 353 | Public | 5.7 mi |
| Harlingen H SHarlingen | 9–12 | 2,433 | Public | 5.7 mi |
| Rio Hondo H SRio Hondo | 9–12 | 475 | Public | 1.7 mi |
| Cameron Co J J A E PHarlingen | 10 | 1 | Alternative Education | 5.7 mi |
| Cameron Co J J A E PRio Hondo | 10 | 1 | Alternative Education | 5.7 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Calvary Christian SchoolHarlingen | Pre-K–8 | 163 | Baptist | 6.1 mi |
| Montessori AcademyHarlingen | Pre-K–5 | 25 | Nonsectarian | 6.7 mi |
| St Albans Episcopal Day SchoolHarlingen | Pre-K–6 | 146 | Episcopal | 5.5 mi |
| St Anthony Catholic SchoolHarlingen | Pre-K–6 | 56 | Roman Catholic | 6.1 mi |
| Marine Military AcademyHarlingen | 7–12 | 240 | Nonsectarian | 4.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Harlingen, Combes, Brownsville, La Tina Ranch and Lasana.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.