ZIP 80420 vs ZIP 80440

80420 is one of 10 ZIP codes that lie mostly in Park County, CO.

Shaded by typical home value, it ranks 1 of the 10 with a value.

Mapped in and around 80420: 38 places to go — 15 day trips, 13 arts & venues, 5 trails.

80440 is one of 10 ZIP codes that lie mostly in Park County, CO.

Shaded by typical home value, it ranks 2 of the 10 with a value.

Mapped in and around 80440: 62 places to go — 21 trails, 18 arts & venues, 13 day trips.

3 school locations in 80440: 1 elementary, 1 middle, 1 high.

In alphabetical order: Edith Teter Elementary School, South Park High School, South Park Middle School. Locations only — no ratings are shown here.

In January 2000 the typical home in 80420 was worth $195,859.

Values peaked at $641,512 in December 2023. The latest reading is −5.0% from that peak.

As of August 2026: $609,559, −0.9% over twelve months.

Start with the typical home: $609,559. Put 20% down and borrow $487,647 at 7.40%, the 30-year fixed average as of October 8, 2026.

That is $3,376 a month in principal and interest.

The median household here earns $84,093 a year, $7,008 a month. So the payment takes 48.2% 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 15.5% 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 $1,173.

In December 2020, with rates at 2.68%, it was $1,370.

By August 2026, at 6.67%, it was $3,136 — +129% since December 2020, while the home's value moved +44%.

Reported values rose +211% 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 $386,548. So the real change is +58%, not +211%.

80420: +211% since January 2000.

Park County: +235% since January 2000.

Colorado: +199% since January 2000 — 80420 ran ahead of it by 13 points.

Owning the typical home costs about $3,986 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $1,805 a month.

Price divided by a year's rent: 28.1. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.

In January 2000 the typical home in 80440 was worth $179,221.

Values peaked at $626,951 in October 2024. The latest reading is −4.3% from that peak.

As of August 2026: $599,905, −1.8% over twelve months.

Start with the typical home: $599,905. Put 20% down and borrow $479,924 at 7.40%, the 30-year fixed average as of October 8, 2026.

That is $3,323 a month in principal and interest.

The median household here earns $99,583 a year, $8,299 a month. So the payment takes 40.0% 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 12.0% 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 $1,073.

In December 2020, with rates at 2.68%, it was $1,352.

By August 2026, at 6.67%, it was $3,086 — +128% since December 2020, while the home's value moved +44%.

Reported values rose +235% 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 $353,711. So the real change is +70%, not +235%.

80440: +235% since January 2000.

Park County: +235% since January 2000.

Colorado: +199% since January 2000 — 80440 ran ahead of it by 36 points.

Owning the typical home costs about $3,923 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $2,583 a month.

Price divided by a year's rent: 19.4. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.

Homes sold: about 1 a month in August 2026 (Redfin).

The 2015–2019 level for the same month was 2 — so sales ran at 50% of it, and below it in 6 of the last 24 months.

Across Park County, builders pulled permits for 152 new homes in 2025.

Of those, 100% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).

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). That is 96% of the 2015–2019 level for the same months.

On the shelf — homes for sale at the end of the period: 105.

Going out — closed sales: about 9 a month. The drain is drawn 60% narrower: the share of homes for sale that sell each month is 40% of its 2015–2019 level.

The ladder: homes for sale ÷ monthly sales = 12.1 months of supply — above the 4–6 month balanced range. In the basin, that is the water level against the shaded balanced band.

The net reading: about 16 more homes came on than sold each month, so inventory is growing. The basin is filling.

Homes sold: about 9 a month in August 2026 (Redfin).

The 2015–2019 level for the same month was 18 — so sales ran at 50% of it, and below it in 17 of the last 24 months.

Across Park County, builders pulled permits for 152 new homes in 2025.

Of those, 100% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).

This ZIP sits in Park County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 454 moved in. Among the ten receiving the most, 316 moved out.

Net across those counties: +138 households. Beside it, homes for sale in this ZIP: 10 in June 2026.

Most arrivals came from Jefferson, CO (154 households); most departures went to Jefferson, CO (95).

County assessor records list 976 properties with a market value here. Their average assessed market value is $696,083; the typical home value is $609,559.

The assessor average sits +14.2% from the market figure — an average against a typical value, so treat it as a check, not a verdict.

This ZIP sits in Park County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 454 moved in. Among the ten receiving the most, 316 moved out.

Net across those counties: +138 households. Beside it, homes for sale in this ZIP: 105 in June 2026.

Most arrivals came from Jefferson, CO (154 households); most departures went to Jefferson, CO (95).

County assessor records list 2,381 properties with a market value here. Their average assessed market value is $663,179; the typical home value is $599,905.

The assessor average sits +10.5% from the market figure — an average against a typical value, so treat it as a check, not a verdict.