ZIP 81621

81621 is one of 10 ZIP codes that lie mostly in Eagle County, CO — 65% of its own area is in the county.

Shaded by typical home value, it ranks 3 of the 5 with a value.

Mapped in and around 81621: 71 places to go — 43 trails, 15 day trips, 5 dining.

3 school locations in 81621: 1 elementary, 1 middle, 1 high.

In alphabetical order: Basalt Elementary School, Basalt High School, Basalt Middle School. Locations only — no ratings are shown here.

In January 2000 the typical home in 81621 was worth $263,297.

Values peaked at $1,452,027 in August 2026. The latest reading is the peak.

As of August 2026: $1,452,027, +7.2% over twelve months.

Start with the typical home: $1,452,027. Put 20% down and borrow $1,161,622 at 7.40%, the 30-year fixed average as of October 8, 2026.

That is $8,043 a month in principal and interest.

The median household here earns $103,721 a year, $8,643 a month. So the payment takes 93.1% of income — rated “severe” (Lotvox ZIP bands: under 28% affordable · 28–36% stretched · 36%+ severe).

The line holds today's rate fixed and moves only the price: at that rate, the same share was 16.9% in 2000.

Take the typical home's price each month, borrow 80% at that month's actual 30-year average rate: in January 2000 (8.21%) the payment was $1,577.

In December 2020, with rates at 2.68%, it was $2,619.

By August 2026, at 6.67%, it was $7,470 — +185% since December 2020, while the home's value moved +80%.

Reported values rose +451% since January 2000.

General prices (CPI-U) rose +97% over the same span.

Divide one by the other: in August 2026 dollars, the 2000 home was worth $519,644. So the real change is +179%, not +451%.

81621: +452% since January 2000.

Eagle County: +319% since January 2000.

Colorado: +199% since January 2000 — 81621 ran ahead of it by 253 points.

Owning the typical home costs about $9,495 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $4,625 a month.

Price divided by a year's rent: 26.2. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.

Picture the Listings Flow Ladder as a basin: new listings pour in from the faucet, the homes for sale are the water, and closed sales run out the drain. Coming in — new listings: about 25 a month (Redfin, 3-month rolling data through August 2026).

On the shelf — homes for sale at the end of the period: 94.

Going out — closed sales: about 16 a month.

The ladder: homes for sale ÷ monthly sales = 5.8 months of supply — inside the 4–6 month balanced range. In the basin, that is the water level against the shaded balanced band.

The net reading: about 9 more homes came on than sold each month, so inventory is growing. The basin is filling.

Homes sold: about 16 a month in August 2026 (Redfin).

The 2015–2019 level for the same month was 14 — so sales ran at 114% of it, and below it in 20 of the last 24 months.

Across Eagle County, builders pulled permits for 223 new homes in 2025.

Of those, 73% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).

This ZIP sits in Eagle County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 706 moved in. Among the ten receiving the most, 915 moved out.

Net across those counties: −209 households. Beside it, homes for sale in this ZIP: 94 in June 2026.

Most arrivals came from Pitkin, CO (151 households); most departures went to Garfield, CO (293).

County assessor records list 827 properties with a market value here. Their average assessed market value is $1,048,500; the typical home value is $1,452,027.

The assessor average sits −27.8% from the market figure — an average against a typical value, so treat it as a check, not a verdict.