Residential delivery area · Colorado
ZIP Code 80128: Littleton, CO
ZIP code 80128 uses the postal name Littleton, Colorado and lies mostly in Jefferson County (90% of its land) with the rest in Arapahoe County (Census 2020 ZIP-county file). About 37,000 people live there (Census Bureau, ACS 2020-2024), the 4th most populous of Littleton's 10 residential ZIP codes. Median household income is $121,436 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Columbine (33%), Ken Caryl (28%) and Littleton (6%); 33% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Littleton · 10 residential ZIPs
- County
- Jefferson County (90%); Arapahoe County (10%)
- Census places
- Columbine (33%) census-designated place; Ken Caryl (28%) census-designated place; Littleton (6%)
- Neighborhoods
- Columbine Hills, Columbine Knolls, Columbine Manor, Normandy Estates GeoNames
- Metro area
- Denver-Aurora-Centennial, CO
- House districts
- CO-6 (82%), CO-7 (18%) 119th Congress, by share of land
- State
- Colorado
- Time zone
- Mountain
- Land area
- 12.6 sq mi · 2,923 people per sq mi
Where is ZIP code 80128?
80128 centers on 39.561°, -105.080° and covers 12.6 square miles of land plus 1.8 of water. It borders 4 ZIP codes: 80123, 80120, 80127, 80125.
The map draws ZIP code areas only. For the streets inside 80128, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 80128 compare with the rest of Littleton?
| Measure | 80128 | In Littleton | In Jefferson County | In CO |
|---|---|---|---|---|
| People (ACS 2020-2024) | 36,712 | 4th of 10 | 5th of 33 | 47th of 527 |
| Median household income | $121k | 8th of 10 | 11th of 28 | 56th of 277 |
| Median home value | $586k | 10th of 10 | 18th of 28 | 115th of 311 |
Its median household income is higher than in 91% of U.S. residential ZIP codes, and it is denser than 88% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 80128?
The 2020 Census counted 36,699 people in 80128; the ACS, which samples households over 2020-2024, estimates 36,712. Between the 2010 and 2020 censuses its population grew 4.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 36,712
- 2020 Census count
- 36,699+4.9% since 2010 (34,988)
- Households
- 14,385
- Median age
- 39.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 80128?
Of the 36,712 people the ACS estimates in 80128, 22.4% are under 18 and 16.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (80.2%), then Hispanic or Latino (13.2%).
- Under 1822.4%
- 18 to 6460.9%
- 65 and older16.7%
- White, not Hispanic80.2%
- Hispanic or Latino13.2%
- Other or two or more4.4%
- Asian, not Hispanic1.7%
- Black, not Hispanic0.5%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 80128 earn?
Median household income is $121,436 (ACS 2020-2024), the 11th highest of the 28 ranked ZIP codes in Jefferson County. It is not measurably different from 2015-2019 ($116,625 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $121,436
- Income per person
- $58,152
- Below the poverty line
- 4.9%
- Unemployed (of the labor force)
- 3.6%
- Adults 25+ with a bachelor's degree
- 50.0%
- Adjusted gross income per tax return, 2022
- $103,11218,950 returns; wages 69% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 80128?
FHFA's house price index for 80128, built from repeat sales and appraisals of the same homes, rose 92% from 2015 to 2025 and rose 40% from 2020 to 2025, and moved +0.7% in 2025.
- Median home value (owners' estimate)
- $586,000
- Median gross rent
- $2,108
- Homes owned by their occupants
- 84.3%
- Housing units
- 14,678
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 80128?
662 business establishments had a location in this ZIP code in 2023, 7 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction127
- Professional, scientific, and technical services127
- Other services (except public administration)66
- Health care and social assistance61
- Real estate and rental and leasing58
- Retail trade45
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 80128?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 80123 | Littleton | 44,549 | $106k | 3.8 mi |
| 80120 | Littleton | 29,725 | $94k | 4.3 mi |
| 80127 | Littleton | 43,494 | $137k | 5.0 mi |
| 80125 | Littleton | 15,630 | $180k | 5.3 mi |
| 80129 | Littleton | 30,223 | $142k | 3.8 mi (near) |
| 80235 | Denver | 8,373 | $71k | 6.0 mi (near) |
| 80126 | Littleton | 44,882 | $170k | 6.4 mi (near) |
| 80236 | Denver | 16,863 | $86k | 6.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.