Zip lookup · CO

80503
Longmont, Colorado.

Longmont, Boulder County, CO · Boulder, CO metro · population 35,846

What it costs per month · 80503 $3,815/mo

to buy the typical home at today's mortgage rate — +$1,813 (+91%) since Jan 2020.

What the home itself did
1 year
Up $618 +0%
$726,259$726,877 since Sep 2025
5 years
Up $55,620 +8%
$671,256$726,877 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$1,000 $2,000 $3,000 $4,000 2002 2006 2010 2014 2018 2022 2026 80503 $3,815 United States $1,922
$1,000 $2,000 $3,000 $4,000 2002 2010 2018 2026
  • 80503$3,815
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 44 years.

Typical home values in zip 80503 rose 0.1% over the past year — slower than the nation's +1.2%.

Asking rents in zip 80503 rose 2.1% over the past year — slower than the nation's +2.7%.

Owning the typical home in zip 80503 runs $3,015/mo more than renting one. The gap peaked at $3,338 in Oct 2023.

That is $4,913 a month against $1,898 rent: a $3,815 mortgage payment, plus $320 property tax and $778 insurance & upkeep.

Owning vs renting — zip 80503

The owning line is the typical home's monthly payment at that month's rate, plus property tax and insurance & upkeep; the renting line is the typical asking rent; the grey line is the mortgage payment on its own. Same homes, same months, both ways of paying for a roof.

$2,000 $3,000 $4,000 $5,000 2021 2022 2023 2024 2025 2026 Owning all in $4,913 Renting $1,898 Mortgage only $3,815
$2,000 $3,000 $4,000 $5,000 2022 2024 2026
  • Owning all in$4,913
  • Renting$1,898
  • Mortgage only$3,815

Property tax · $320/mo 0.53% of value a year — the ACS 2020-2024 median bill over the median home value for 2 counties

Insurance & upkeep · $778/mo insurance, maintenance and repairs together, from the BLS Consumer Expenditure Survey — the national figure for mortgaged homeowners, scaled to this market's home value. BLS publishes the three bundled and they cannot be split.

Both are priced off the same month's home value, so they rise with the market. Neither is a quote — a specific home's bill depends on its assessment, its age and its insurer.

This zip spans 2 counties: Boulder County, CO 98% · Larimer County, CO 2%

Zillow also publishes an index for the city itself: Longmont, CO — measured over the city limits, which is a different area from this zip.

Asking rent $1,898 as of Sep 2026
+2.1%year on year
Typical home value $726,877 as of Sep 2026
+0.1%year on year

Asking rent — 80503

Against the Boulder, CO metro and the national benchmark.

$1,500 $1,750 $2,000 $2,250 2021 2022 2023 2024 2025 2026 80503 $1,898 Boulder $2,196 United States $1,932
$1,500 $1,750 $2,000 $2,250 2022 2024 2026
  • 80503$1,898
  • Boulder$2,196
  • United States$1,932

Typical home value — 80503

Mid-tier homes, smoothed and seasonally adjusted.

$200,000 $400,000 $600,000 $800,000 2018 2020 2022 2024 2026 80503 $726,877 Boulder $706,763 United States $366,157
$200,000 $400,000 $600,000 $800,000 2018 2022 2026
  • 80503$726,877
  • Boulder$706,763
  • United States$366,157

Within 20 miles

Miles sorted ascending, activate to sort descending Zip activate to sort by Zip City activate to sort by City Population activate to sort by Population Rent activate to sort by Rent Home value activate to sort by Home value
5.6 80501 Longmont 44,147 $1,797 $478,560
8.4 80301 Boulder 25,007 $2,353 $689,730
9.3 80504 Longmont 63,451 $2,082 $569,219
9.6 80304 Boulder 25,383 $2,512 $1,214,819
10.3 80513 Berthoud 18,271 $2,679 $603,145
10.5 80455 Jamestown 501 — $534,904
10.7 80540 Lyons 4,642 — $737,464
11.9 80542 Mead 5,155 — $546,187
12.3 80026 Lafayette 32,701 $2,200 $663,139
12.4 80302 Boulder 29,569 $2,997 $1,082,288
12.8 80516 Erie 39,048 $2,772 $706,458
13.4 80305 Boulder 16,291 $2,837 $961,927
13.5 80303 Boulder 24,996 $2,332 $806,275
14.8 80537 Loveland 44,425 $1,798 $490,661
15.0 80520 Firestone 1,140 — $462,600
15.0 80514 Dacono 6,721 — $490,578
15.3 80027 Louisville 34,127 $2,284 $815,044
15.7 80530 Frederick 6,242 — $493,590
17.0 80023 Broomfield 27,143 $2,085 $808,143
17.3 80481 Ward 484 — $515,159
17.9 80020 Broomfield 54,201 $2,196 $562,146
18.2 80534 Johnstown 20,502 $1,993 $504,396
19.8 80510 Allenspark 663 — $499,711
19.8 80021 Broomfield 36,555 $1,919 $541,782

Coordinates and population from SimpleMaps US Zips (Basic). Rent and home values from Zillow Research.