Second-hand baby & kids in Seattle typically sells for $4 to $540. Brand and how recent the model is set most of the price, and completeness sets the rest. A travel system with its adapters, raincover and footmuff is worth far more than the chassis and seat alone.
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Buying baby & kids in Seattle
Seattle pairs a large technology workforce with a serious outdoor culture and a genuinely wet climate.
Families pass this on within a few streets more than any other category, often before it is ever listed publicly. Supply arrives in waves as each stage is finished with, so timing and being nearby matter more than hunting for the lowest price.
What to check in person
Find the date stamp moulded into the plastic and work out the real age, since these items have expiry dates that owners forget and buyers rarely ask about. Check every fabric part comes off for washing and is actually all there.
Collecting it in Seattle
It needs a car boot rather than a bag, so agree somewhere you can actually stop for a few minutes. That is easier away from the centre than in it.
The city is hilly and the water divides it, so the bridge or the route matters more than the distance. Parking in the denser neighbourhoods is difficult, and a lot of handovers happen at park-and-ride lots for that reason.
Selling your baby & kids in Seattle free
Technology hiring moves people in and out, and outdoor gear runs on its own upgrade cycle — equipment gets bought, used for a couple of seasons and passed on in good condition when someone moves up a level.
Say the model name and year and list exactly which accessories are included. Give it a proper clean first, because this is the category where a buyer’s decision is made in the first few seconds of looking. Steady all year; second-hand supply rises as each cohort outgrows a stage.
Peer-to-peer payment apps dominate private sales, and buyers will usually offer one before they offer cash. Sales tax does not apply to a private sale between individuals.
Baby & Kids worth listing in Seattle
Same region (Washington)
If nothing in Seattle suits, Spokane, Tacoma and Vancouver each have their own baby & kids page, and a seller will often meet part of the way for something worth the trip.
More in Seattle: everything second hand in Seattle, or Baby & Kids across the United States.
Prices converted from sterling at the 2 August 2026 rate; sellers set their own price.