Zip Code 80128
Littleton, Colorado — Jefferson County
📍 ZIP code 80128 is in Littleton, Jefferson County, Colorado.
ZIP code 80128 is located in Littleton, Jefferson County, Colorado. It is a zip code in the Mountain (MST/MDT) Time Zone with an estimated population of 36,859. The area code for ZIP code 80128 is 303.
Quick Answer
Zip code 80128 is in Littleton, Colorado (Jefferson County). It has a population of 36,859, median household income of $119,827, and median home value of $554,100.
Population
36,859
Income
$119,827
Home Value
$554,100
Climate
86°F / 19°F
About Zip Code 80128
Zip code 80128 is located in Littleton, Colorado, within Jefferson County. Home to approximately 36,859 residents, this area sits at an elevation of 5563 ft and falls within the Mountain (MST/MDT) timezone. The local area code is 303.
The median household income is $119,827 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $554,100, and the cost of living index is 171 (71% above the national average of 100).
Summers average a high of 86°F while winters drop to 19°F. The area receives about 17 in of rain and 34 in of snow annually. The zip code covers 12.1 square miles of land area and 1.8 square miles of water.
Key Statistics
36,859
$119,827
$554,100
Mountain (MST/MDT)
303
5563 ft
12.1 sq mi
39.7
14,573
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Compare With Nearby Zip Codes
| Metric | 80128 | 80123 | 80120 | 80127 | 80125 | 80235 |
|---|---|---|---|---|---|---|
| City | Littleton, CO | Littleton, CO | Littleton, CO | Littleton, CO | Littleton, CO | Denver, CO |
| Population | 36,859 | 45,364 | 29,992 | 43,826 | 13,876 | 8,374 |
| Median Income | $119,827 | $106,731 | $91,162 | $137,753 | $167,874 | $69,588 |
| Home Value | $554,100 | $581,800 | $596,400 | $663,900 | $708,200 | $544,000 |
| Cost of Living | 171 | 166 | 162 | 202 | 226 | 147 |
| Median Age | 39.7 | 40.9 | 42 | 44.1 | 40.9 | 36.3 |
Cost of Living
100 = National Average. Littleton's cost of living is 71% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.6x
Demographics
Zip code 80128 has a population of 36,859 people with a median age of 39.7. There are 14,573 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Littleton (80128) population trend from 2010 to 2024
↑ 636.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
86°F
19°F
17 in
34 in
Littleton experiences warm summers with average highs around 86°F. Winters are cold with lows averaging 19°F. With 34 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$554,100
Median Household Income
$119,827
With 14,573 housing units across 12.1 square miles, 80128 has a housing density of 1,204 units per square mile. The home price-to-income ratio is 4.6x.
Location & Geography
Latitude
39.5641°
Longitude
-105.0788°
Land Area
12.1 sq mi
Water Area
1.8 sq mi
Nearby Zip Codes
Zip codes closest to 80128 (Littleton, CO) with distances:
All Zip Codes in Littleton, CO
Other zip codes serving Littleton:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 80128's $119,827. A way to compare Littleton 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 80128 (Littleton, 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 Littleton, Colorado?
Littleton, Colorado uses zip code 80128 along with 4 other zip codes.
What county is zip code 80128 in?
Zip code 80128 is located in Jefferson County, Colorado.
What is the population of zip code 80128?
The population of zip code 80128 is 36,859 with a median age of 39.7.
Is 80128 in Littleton, Colorado?
Yes, zip code 80128 is in Littleton, Jefferson County, Colorado. The area code is 303.
Frequently Asked Questions
What city is zip code 80128 in?
Zip code 80128 is in Littleton, Colorado. It is part of Jefferson County and uses the Mountain (MST/MDT) timezone.
What is zip code 80128?
Zip code 80128 is a U.S. postal code in Littleton, Colorado (Jefferson County). It has a population of 36,859 and covers 12.1 square miles.
What is the population of zip code 80128?
The population of zip code 80128 (Littleton, CO) is 36,859 with a median age of 39.7. There are approximately 14,573 housing units in this area.
What is the median income in zip code 80128?
The median household income in zip code 80128 (Littleton, CO) is $119,827 per year. The cost of living index is 171 (100 = national average).
What is the average home price in zip code 80128?
The median home value in zip code 80128 (Littleton, CO) is $554,100. The cost of living index is 171 compared to the national average of 100.
What county is zip code 80128 in?
Zip code 80128 is located in Jefferson County, Colorado. The primary city is Littleton.
What is the area code for zip code 80128?
Zip code 80128 in Littleton, CO uses area code 303. It is located in the Mountain (MST/MDT) timezone.
Is zip code 80128 a good place to live?
Zip code 80128 (Littleton, CO) has a cost of living index of 171 (100 = national average), a median household income of $119,827, and median home values of $554,100. The median age is 39.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 80128?
The cost of living index for zip code 80128 (Littleton, CO) is 171, where 100 represents the national average. This area is above the national average. Median home value: $554,100.
What schools serve zip code 80128?
Zip code 80128 in Littleton, Colorado is served by the local school district of Jefferson 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.