ZIP 80520 vs ZIP 80621

80520 is one of 35 ZIP codes that lie mostly in Weld County, CO.

Shaded by typical home value, it ranks 19 of the 28 with a value.

Mapped in and around 80520: 12 places to go — 11 day trips, 1 trails.

80621 is one of 35 ZIP codes that lie mostly in Weld County, CO.

Shaded by typical home value, it ranks 20 of the 28 with a value.

Mapped in and around 80621: 43 places to go — 12 arts & venues, 11 day trips, 10 dining.

5 school locations in 80621: 3 elementary, 1 middle, 1 high.

In alphabetical order: Fort Lupton High School, Fort Lupton Middle School, Leo William Butler Elementary School, Little Trappers Preschool, and more on the ZIP page. Locations only — no ratings are shown here.

In March 2001 the typical home in 80520 was worth $162,845.

Values peaked at $492,560 in July 2022. The latest reading is −5.5% from that peak.

As of August 2026: $465,562, −2.5% over twelve months.

Start with the typical home: $465,562. Put 20% down and borrow $372,450 at 7.40%, the 30-year fixed average as of October 8, 2026.

That is $2,579 a month in principal and interest.

The median household here earns $65,139 a year, $5,428 a month. So the payment takes 47.5% 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 16.6% in 2001.

Take the typical home's price each month, borrow 80% at that month's actual 30-year average rate: in March 2001 (6.95%) the payment was $863.

In December 2020, with rates at 2.68%, it was $1,239.

By August 2026, at 6.67%, it was $2,395 — +93% since December 2020, while the home's value moved +22%.

Reported values rose +186% since March 2001.

General prices (CPI-U) rose +90% over the same span.

Divide one by the other: in August 2026 dollars, the 2001 home was worth $308,981. So the real change is +51%, not +186%.

80520: +186% since March 2001.

Weld County: +160% since March 2001.

Colorado: +162% since March 2001 — 80520 ran ahead of it by 24 points.

Owning the typical home costs about $3,044 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $1,643 a month.

Price divided by a year's rent: 23.6. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.

In January 2000 the typical home in 80621 was worth $153,579.

Values peaked at $484,201 in July 2022. The latest reading is −4.6% from that peak.

As of August 2026: $461,953, −1.9% over twelve months.

Start with the typical home: $461,953. Put 20% down and borrow $369,562 at 7.40%, the 30-year fixed average as of October 8, 2026.

That is $2,559 a month in principal and interest.

The median household here earns $80,746 a year, $6,729 a month. So the payment takes 38.0% 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 12.6% 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 $920.

In December 2020, with rates at 2.68%, it was $1,232.

By August 2026, at 6.67%, it was $2,377 — +93% since December 2020, while the home's value moved +21%.

Reported values rose +201% 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 $303,104. So the real change is +52%, not +201%.

80621: +201% since January 2000.

Weld County: +178% since January 2000.

Colorado: +199% since January 2000 — 80621 ran ahead of it by 2 points.

Owning the typical home costs about $3,021 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $1,238 a month.

Price divided by a year's rent: 31.1. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.

Homes sold: about 0 a month in February 2025 (Redfin).

The 2015–2019 level for the same month was 0 — so sales ran at NaN% of it, and below it in 0 of the last 20 months.

Across Weld County, builders pulled permits for 2,993 new homes in 2025.

Of those, 67% 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 29 a month (Redfin, 3-month rolling data through August 2026).

On the shelf — homes for sale at the end of the period: 93.

Going out — closed sales: about 18 a month. The drain is drawn 55% narrower: the share of homes for sale that sell each month is 45% of its 2015–2019 level.

The ladder: homes for sale ÷ monthly sales = 5.3 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 11 more homes came on than sold each month, so inventory is growing. The basin is filling.

Homes sold: about 18 a month in August 2026 (Redfin).

The 2015–2019 level for the same month was 14 — so sales ran at 129% of it, and below it in 2 of the last 24 months.

Across Weld County, builders pulled permits for 2,993 new homes in 2025.

Of those, 67% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).

This ZIP sits in Weld County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 8,838 moved in. Among the ten receiving the most, 5,777 moved out.

Net across those counties: +3,061 households. Beside it, homes for sale in this ZIP: 1 in November 2025.

Most arrivals came from Larimer, CO (2,730 households); most departures went to Larimer, CO (2,021).

County assessor records list 590 properties with a market value here. Their average assessed market value is $414,679; the typical home value is $465,562.

The assessor average sits −10.9% from the market figure — an average against a typical value, so treat it as a check, not a verdict.

Of 613 homes with a recorded purchase date, 39% have had the same owner for 20 years or more, and 6% changed hands in the last five.

68% are owned from a different mailing address, 2% from out of state.

This ZIP sits in Weld County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 8,838 moved in. Among the ten receiving the most, 5,777 moved out.

Net across those counties: +3,061 households. Beside it, homes for sale in this ZIP: 93 in June 2026.

Most arrivals came from Larimer, CO (2,730 households); most departures went to Larimer, CO (2,021).

County assessor records list 3,086 properties with a market value here. Their average assessed market value is $416,783; the typical home value is $461,953.

The assessor average sits −9.8% from the market figure — an average against a typical value, so treat it as a check, not a verdict.

Of 3,262 homes with a recorded purchase date, 38% have had the same owner for 20 years or more, and 9% changed hands in the last five.

36% are owned from a different mailing address, 1% from out of state.