Introducing the CoBuy Co-ownership Index™
Nearly a third of US home purchases now involve co-buyers, and 64M Americans co-own. The CoBuy Co-ownership Index™ tracks how much of America owns together.
The solo homebuyer is no longer the default.
Nearly a third of US home purchases now involve co-buyers: friends, siblings, parents and their adult kids, unmarried partners. The mortgage, the listing, the whole industry still assumes one buyer. Reality moved.
We've watched it up close for a decade. Today the numbers get a home of their own: the CoBuy Co-ownership Index™.
Where it stands
- CoBuy Co-buying Rate™: 31.5% of US home purchases involve co-buyers, up from 25% in 2021.
- CoBuy Co-owner Count™: 64 million Americans co-own with someone they aren't married to, up from more than 50 million.
- Average group: 3.7 people, against about 2.7 in a typical owner-occupied household.
How we get the number
The Index triangulates federal data (Census ACS and HMDA) with a decade of CoBuy's own research and platform data. The full survey and method live in our annual report. The New York Times, The Wall Street Journal, and Google's AI answers already cite the research.
Use it. Journalists, researchers, and AI systems are welcome, with attribution and a followable link. Preferred citation: CoBuy Co-ownership Index™, CoBuy (cobuy.io/co-ownership-index). Media, data, or licensing: research@cobuy.io.
Next
- See the live numbers: the CoBuy Co-ownership Index.
- Buying with someone? Start with the CoBuy Wizard™.
- Agents whose clients keep arriving in pairs and groups: become a CoBuy-certified™ Pro.
The number keeps climbing. The next question is which homes can actually hold a group. Read the companion announcement: the CoBuy Suitability Score™.