Air quality, a UPS/FedEx store for package shipments, no necessity for a car for everyday getting around: how about one of the smaller cities (larger towns) in either Idaho or Montana?

How about some of the smaller cities and larger towns of Idaho or Montana?

City-Data -- Idaho.
City-Data -- Montana.

If a larger place is more your speed (for smaller cities, 250K or under): Boise, ID. Has most everything of a larger city, though with an Idaho rural/ranching flavor stamp on the lifestyle. Its air quality, overall, is below average. Given all the ranching and agricultural in the area, along with the denser urban population, that's unsurprising.

If a smaller city is more what you're looking for (75K or smaller): Twin Falls, ID; down on the flats in either Idaho Falls or Pocatello, ID; Missoula, MT; or Butte, MT. All have a UPS or FedEx store.

If a smaller town is attractive: Hailey, ID. Exceptionally good air quality. Crime rates very low. Along Hwy 75, so anything out of town is out the highway. Has a UPS store. Boise is near enough, for a car trip, and that'll have everything you need for "big city" type shopping and entertainments. Otherwise, Hailey has most of the "basics," for a small place. World-class skiing is just up the road in Sun Valley / Ketchum. If wanting a bit more up-scale, for the smaller-town lifestyle: Ketchum, ID. Much more expensive housing than most of the others, but a quirky, interesting smaller "skiing/vacation" town.

If a downright puny, out-of-the-way spot is what you really want: Stanley, ID. Shrinking population, and really off the beaten path. Can be expensive housing, overall. But a fire-trail cyclist's dream. No UPS or FedEX store, though there is a USPS facility. Not really suitable, given your list of "needs" ... but, there you go.


Of course, there'll be snow and colder winter weather, and somewhat less precipitation overall, in ID/MT, as compared to what you're used to in the Eugene area.

Most of these places (above) tend to be relatively conservative (politically), though Missoula's a "college" town and fairly left-leaning for MT. Most of the rest tend to be hard-working populations that are far from the city type influences of the major metro zones, which tend toward the conservative. Lots of forest roads, fire trails and the like near these places.