Cost of living in Grand Mound, Washington

Grand Mound, Washington has about 3,287 people. That count is a 2020–2024 Census average, not a headcount from one day.

A typical home is worth about $411,400.

HUD's fair-market rent for a 2-bedroom in Thurston County is $1,946 a month. That is the county number, not an apartment listing in Grand Mound. It runs from October 2026 through September 2027.

In the Olympia-Lacey-Tumwater, WA metro area, prices sit at 103.7 when the U.S. average is 100. That is a 2024 BEA index.

Washington does not tax wages. A typical combined sales tax is 9.5% as of January 1, 2026. That mix is statewide, not Grand Mound's exact store tax.

In July 2026, a typical Washington home paid 14.71¢ per kilowatt-hour. That is a state average from EIA, not Grand Mound's bill.

In 2025, all-grades gas in Washington averaged $4.23 a gallon. EIA prints this yearly price for only some states.

Among 355 places we list in Washington with a rent figure, 222 have higher typical rent than Grand Mound.