Collinsville is a city in Tulsa County, Oklahoma, home to about 8,878 people across 7.7 square miles. Its ZIP code is 74021.
Homes sold for a median of $172 per square foot in the three months ending August 2026, a seller’s market.
Mostly Collinsville; also Owasso
Each card is that ZIP code’s whole market, including any part outside Collinsville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Collinsville’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Tulsa International Airport (TUL)12 miles away |
|---|---|
| Nearest city of 250,000+ | Tulsa, OK17 miles away |
| Nearest city of 1 million+ | Dallas, TX252 miles away |
Straight-line distances from the center of Collinsville; 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.
Collinsville had 7,881 residents in the 2020 census, up 93% since 2000.
It’s the 50th largest of 827 towns in Oklahoma by population.
Tulsa County grew from 34,995 residents in 1910 to 669,279 in 2020.
Tulsa County, 1910–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 94°F in summer, and winter lows average 28°F. About 41.1 inches of rain and melted snow fall in a typical year, with about 9 inches of snow.
Source: NOAA 1991–2020 climate normals, Tulsa Intl Ap, OK weather station (12 miles away).
329,036 jobs at 19,556 businesses in Tulsa County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
50 doctors and other health care providers list an office in Collinsville.
Nearest hospitals
Providers with an office here
| Primary care doctors | 14 |
|---|---|
| Dentists | 3 |
| Nurse practitioners and physician assistants | 15 |
| Mental health providers | 6 |
| Physical and occupational therapists | 8 |
| Optometrists | 2 |
| Chiropractors | 2 |
| Pharmacies | 3 |
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 (2 nearby)
Grocery stores (1 nearby)
Pharmacies
Libraries (1 nearby)
Counts are within about 2 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.
Established in 1897.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Collinsville, Owasso. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Collinsville Ec CtrCollinsville | Pre-K–K | 372 | Public | 2.2 mi |
| Lucille Ellingwood Morrow EsCollinsville | Pre-K–5 | 635 | Public | 2.9 mi |
| Herald EsCollinsville | 1–2 | 493 | Public | 2.2 mi |
| Collinsville Upper EsCollinsville | 3–5 | 697 | Public | 2.2 mi |
| Wilson 6th Grade CenterCollinsville | 6 | 242 | Public | 0.1 mi |
| Collinsville MsCollinsville | 7–8 | 478 | Public | 0.5 mi |
| Collinsville HsCollinsville | 9–12 | 919 | Public | 0.6 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Owasso.
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.