ZIP 80120

80120 is one of 17 ZIP codes that lie mostly in Arapahoe County, CO — 99% of its own area is in the county.

Shaded by typical home value, it ranks 7 of the 17 with a value.

Mapped in and around 80120: 122 places to go — 40 parks & open space, 37 dining, 17 trails.

7 school locations in 80120: 3 elementary, 3 middle, 1 high.

In alphabetical order: East Elementary School, Euclid Middle School, Heritage High School, Littleton Academy, and more on the ZIP page. Locations only — no ratings are shown here.

In January 2000 the typical home in 80120 was worth $197,574.

Values peaked at $637,910 in June 2022. The latest reading is −6.4% from that peak.

As of August 2026: $597,019, −1.6% over twelve months.

Start with the typical home: $597,019. Put 20% down and borrow $477,615 at 7.40%, the 30-year fixed average as of October 8, 2026.

That is $3,307 a month in principal and interest.

The median household here earns $91,162 a year, $7,597 a month. So the payment takes 43.5% 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 14.4% 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 $1,183.

In December 2020, with rates at 2.68%, it was $1,599.

By August 2026, at 6.67%, it was $3,071 — +92% since December 2020, while the home's value moved +21%.

Reported values rose +202% 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 $389,933. So the real change is +53%, not +202%.

80120: +202% since January 2000.

Arapahoe County: +187% since January 2000.

Colorado: +199% since January 2000 — 80120 ran ahead of it by 4 points.

Against 476 Colorado ZIP codes, 80120 sits at the 27th percentile for affordability (price vs local income).

33rd for appreciation (recent value growth); 31st for rental yield (rent vs price).

Owning the typical home costs about $3,904 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $1,932 a month.

Price divided by a year's rent: 25.8. 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 51 a month (Redfin, 3-month rolling data through August 2026). That is 101% of the 2015–2019 level for the same months.

On the shelf — homes for sale at the end of the period: 98.

Going out — closed sales: about 41 a month. That is 84% of the 2015–2019 level for the same months. The drain is drawn 44% narrower: the share of homes for sale that sell each month is 56% of its 2015–2019 level.

The ladder: homes for sale ÷ monthly sales = 2.4 months of supply — below the 4–6 month range Lotvox treats as balanced. In the basin, that is the water level against the shaded balanced band.

The net reading: about 10 more homes came on than sold each month, so inventory is growing. The basin is filling.

Homes sold: about 41 a month in August 2026 (Redfin).

The 2015–2019 level for the same month was 43 — so sales ran at 95% of it, and below it in 23 of the last 24 months.

Across Arapahoe County, builders pulled permits for 3,599 new homes in 2025.

Of those, 48% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).

This ZIP sits in Arapahoe County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 18,928 moved in. Among the ten receiving the most, 20,192 moved out.

Net across those counties: −1,264 households. Beside it, homes for sale in this ZIP: 98 in June 2026.

Most arrivals came from Denver, CO (8,748 households); most departures went to Denver, CO (7,829).

County assessor records list 236 properties with a market value here. Their average assessed market value is $466,550; the typical home value is $597,019.

The assessor average sits −21.9% from the market figure — an average against a typical value, so treat it as a check, not a verdict.

Of 9,266 homes with a recorded purchase date, 21% have had the same owner for 20 years or more, and 32% changed hands in the last five.

20% are owned from a different mailing address, 3% from out of state.