Zip Code 80504
Longmont, Colorado — Weld County
📍 ZIP code 80504 is in Longmont, Weld County, Colorado.
ZIP code 80504 is located in Longmont, Weld County, Colorado. It is a zip code in the Mountain (MST/MDT) Time Zone with an estimated population of 61,305. The area code for ZIP code 80504 is 719.
Quick Answer
Zip code 80504 is in Longmont, Colorado (Weld County). It has a population of 61,305, median household income of $109,671, and median home value of $556,500.
Population
61,305
Income
$109,671
Home Value
$556,500
Climate
91°F / 14°F
About Zip Code 80504
Zip code 80504 is located in Longmont, Colorado, within Weld County. Home to approximately 61,305 residents, this area sits at an elevation of 4929 ft and falls within the Mountain (MST/MDT) timezone. The local area code is 719.
The median household income is $109,671 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $556,500, and the cost of living index is 164 (64% above the national average of 100).
Summers average a high of 91°F while winters drop to 14°F. The area receives about 15 in of rain and 68 in of snow annually. The zip code covers 98 square miles of land area and 5 square miles of water.
Key Statistics
61,305
$109,671
$556,500
Mountain (MST/MDT)
719
4929 ft
98 sq mi
40.2
23,359
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Compare With Nearby Zip Codes
| Metric | 80504 | 80501 | 80542 | 80520 | 80530 | 80516 |
|---|---|---|---|---|---|---|
| City | Longmont, CO | Longmont, CO | Mead, CO | Firestone, CO | Frederick, CO | Erie, CO |
| Population | 61,305 | 43,591 | 5,552 | 1,684 | 6,097 | 37,107 |
| Median Income | $109,671 | $77,705 | $127,500 | $65,139 | $120,172 | $160,590 |
| Home Value | $556,500 | $461,400 | $590,500 | $449,000 | $449,200 | $683,600 |
| Cost of Living | 164 | 134 | 175 | 125 | 150 | 219 |
| Median Age | 40.2 | 38 | 37.3 | 42 | 35.7 | 37.8 |
Cost of Living
100 = National Average. Longmont's cost of living is 64% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
5.1x
Demographics
Zip code 80504 has a population of 61,305 people with a median age of 40.2. There are 23,359 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Longmont (80504) population trend from 2010 to 2024
↑ 146.1%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
91°F
14°F
15 in
68 in
Longmont experiences hot summers with average highs around 91°F. Winters are cold with lows averaging 14°F. With 68 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$556,500
Median Household Income
$109,671
With 23,359 housing units across 98 square miles, 80504 has a housing density of 238 units per square mile. The home price-to-income ratio is 5.1x.
Location & Geography
Latitude
40.1634°
Longitude
-105.0301°
Land Area
98 sq mi
Water Area
5 sq mi
Nearby Zip Codes
Zip codes closest to 80504 (Longmont, CO) with distances:
All Zip Codes in Longmont, CO
Other zip codes serving Longmont:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 80504's $109,671. A way to compare Longmont to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 80504 (Longmont, CO). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Longmont, Colorado?
Longmont, Colorado uses zip code 80504 along with 2 other zip codes.
What county is zip code 80504 in?
Zip code 80504 is located in Weld County, Colorado.
What is the population of zip code 80504?
The population of zip code 80504 is 61,305 with a median age of 40.2.
Is 80504 in Longmont, Colorado?
Yes, zip code 80504 is in Longmont, Weld County, Colorado. The area code is 719.
Frequently Asked Questions
What city is zip code 80504 in?
Zip code 80504 is in Longmont, Colorado. It is part of Weld County and uses the Mountain (MST/MDT) timezone.
What is zip code 80504?
Zip code 80504 is a U.S. postal code in Longmont, Colorado (Weld County). It has a population of 61,305 and covers 98 square miles.
What is the population of zip code 80504?
The population of zip code 80504 (Longmont, CO) is 61,305 with a median age of 40.2. There are approximately 23,359 housing units in this area.
What is the median income in zip code 80504?
The median household income in zip code 80504 (Longmont, CO) is $109,671 per year. The cost of living index is 164 (100 = national average).
What is the average home price in zip code 80504?
The median home value in zip code 80504 (Longmont, CO) is $556,500. The cost of living index is 164 compared to the national average of 100.
What county is zip code 80504 in?
Zip code 80504 is located in Weld County, Colorado. The primary city is Longmont.
What is the area code for zip code 80504?
Zip code 80504 in Longmont, CO uses area code 719. It is located in the Mountain (MST/MDT) timezone.
Is zip code 80504 a good place to live?
Zip code 80504 (Longmont, CO) has a cost of living index of 164 (100 = national average), a median household income of $109,671, and median home values of $556,500. The median age is 40.2. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 80504?
The cost of living index for zip code 80504 (Longmont, CO) is 164, where 100 represents the national average. This area is above the national average. Median home value: $556,500.
What schools serve zip code 80504?
Zip code 80504 in Longmont, Colorado is served by the local school district of Weld County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.