Spokane County keeps drawing new residents, businesses, and investment while bigger West Coast metros cool off. Some of the reasons are obvious; one of the biggest is literally underground. Here's the growth story — and why it matters if you own a rental here.
The 10-trillion-gallon advantage
Beneath Spokane County sits the Spokane Valley–Rathdrum Prairie Aquifer — one of the most productive aquifers in the country, holding an estimated 10 trillion gallons of fresh water. Abundant, clean, low-cost water is a structural advantage most fast-growing metros don't have, and it quietly underwrites the region's long-term economic story. The natural setting here isn't just scenery; it's part of why people and businesses keep choosing Spokane.
The fourth-largest county in Washington — and still climbing
With around 566,000 residents, Spokane County is the fourth most populated in the state, and it continues to grow steadily. Vacancy has held in the low single digits for years, and the City of Spokane alone is operating under an estimated housing deficit of more than 32,000 units. Growth plus a structural housing shortage is exactly the backdrop that keeps rental demand firm.
What steady growth means for a rental owner
For an owner, the county's growth translates into something simple: a reliable floor under demand. When more people keep arriving and there aren't enough homes to go around, a well-kept, fairly-priced rental leases quickly and holds its value through market cycles. That's the quiet case for owning here — and for holding for the long term.
We break the whole county down city by city on our Spokane County property management page.
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