Rio Rico is a community in Santa Cruz County, Arizona, home to about 22,017 people across 63 square miles. Its ZIP codes are 85640 and 85648.
Homes sold for a median of $180 per square foot across 2 ZIP codes in the three months ending August 2026, and 0 of 2 were seller’s markets.
Mostly Rio Rico; also Tumacacori-Carmen
Each card is that ZIP code’s whole market, including any part outside Rio Rico. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Rio Rico’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Rio Rico well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Tucson International Airport (TUS)43 miles away |
|---|---|
| Nearest city of 250,000+ | Tucson, AZ46 miles away |
| Nearest city of 1 million+ | Phoenix, AZ154 miles away |
Straight-line distances from the center of Rio Rico; 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 Rico had 20,549 residents in the 2020 census, up 8% since 2010.
It’s the 42nd largest of 441 towns in Arizona by population.
Santa Cruz County grew from 4,545 residents in 1900 to 47,669 in 2020.
Santa Cruz County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 95°F in summer, and winter lows average 32°F. About 16.1 inches of rain and melted snow fall in a typical year, with about 0 inches of snow.
Source: NOAA 1991–2020 climate normals, Tumacacori Nm, AZ weather station (4 miles away).
11,201 jobs at 1,129 businesses in Santa Cruz County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
16 doctors and other health care providers list an office in Rio Rico’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 3 |
|---|---|
| Nurse practitioners and physician assistants | 2 |
| Mental health providers | 4 |
| Physical and occupational therapists | 6 |
| Chiropractors | 1 |
| Pharmacies | 2 |
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.
Museums (1 nearby)
Counts are within about 5 miles 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 Santa Cruz Valley Unified District (4458). Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Calabasas SchoolRio Rico | Pre-K–8 | 917 | Public | 8.0 mi |
| Mountain View SchoolRio Rico | K–5 | 406 | Public | 3.6 mi |
| San Cayetano Elementary SchoolRio Rico | K–5 | 395 | Public | 6.9 mi |
| Coatimundi Middle SchoolRio Rico | 6–8 | 497 | Public | 3.6 mi |
| Rio Rico High SchoolRio Rico | 9–12 | 1,397 | Public | 3.4 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Global Schools Starseed and Urantion Child & TeensRio Rico | Ungraded | 20 | Other religious | 4.9 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 Tumacacori-Carmen.
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.