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Residential delivery area · Colorado

ZIP Code 80123: Littleton, CO

ZIP code 80123 uses the postal name Littleton, Colorado and lies mostly in Jefferson County (50% of its land), reaching into Arapahoe County and Denver County (Census 2020 ZIP-county file). About 45,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Littleton's 10 residential ZIP codes. Median household income is $105,932 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Columbine (20%), Denver (19%), Littleton (16%), Ken Caryl (8%), Columbine Valley (8%) and Bow Mar (6%), and 4% in smaller places; 18% is outside any Census place.

  • ACS2020-24
  • Census2020
  • FHFA2025
  • ZBP2023
  • IRS2022
8national area: Colorado, Arizona, Idaho, New Mexico, Nevada and 2 more
801sectional center: Denver, CO (SCF 800)
23delivery area within it
Town
Littleton · 10 residential ZIPs
Census places
Columbine (20%) census-designated place; Denver (19%); Littleton (16%); Ken Caryl (8%) census-designated place
Neighborhoods
Columbine Heights, Columbine Lakes, Coventry, Hillside Manor, Leawood GeoNames
Metro area
Denver-Aurora-Centennial, CO
House districts
CO-6 (59%), CO-7 (22%), CO-1 (19%) 119th Congress, by share of land
Time zone
Mountain
Land area
12.0 sq mi · 3,706 people per sq mi
PO Box ZIPs
80160, 80161, 80162, 80163, 80165, 80166 also use the name Littleton

Where is ZIP code 80123?

80123 centers on 39.616°, -105.069° and covers 12.0 square miles of land plus 1.7 of water. It borders 6 ZIP codes: 80235, 80236, 80120, 80110, 80128, 80127.

80110 · Englewood80120 · Littleton80127 · Littleton80128 · Littleton80235 · Denver80236 · Denver80123 · Littleton (this ZIP)8012380127801288012080110802368023580110 · Englewood80120 · Littleton80127 · Littleton80128 · Littleton80235 · Denver80236 · Denver80123 · Littleton (this ZIP)8012380127801288012080110802368023580110 · Englewood80120 · Littleton80127 · Littleton80128 · Littleton80235 · Denver80236 · Denver80123 · Littleton (this ZIP)801238012780128801208011080235
Shaded by median household income, in national fifths (ACS 2020-2024); 80123 outlined. Census 2020 ZCTA boundaries. <$54.1k$98.1k+no figure

The map draws ZIP code areas only. For the streets inside 80123, 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 80123 compare with the rest of Littleton?

Rank of 80123 among the residential ZIP codes of its town, county and state (1 = the most; income and home value among ZIP codes of 1,000+ people living in households)
Measure80123In LittletonIn Jefferson CountyIn CO
People (ACS 2020-2024)44,5492nd of 102nd of 3322nd of 527
Median household income$106k9th of 1017th of 2894th of 277
Median home value$620k9th of 1014th of 2895th of 311

Its median household income is higher than in 85% of U.S. residential ZIP codes, and it is denser than 91% 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 80123?

The 2020 Census counted 47,302 people in 80123; the ACS, which samples households over 2020-2024, estimates 44,549. Between the 2010 and 2020 censuses its population grew 5.6% (its boundary stayed at least 90% the same).

People, ACS 2020-2024
44,549
2020 Census count
47,302+5.6% since 2010 (44,795)
Households
19,270
Median age
41.8

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 80123?

Of the 44,549 people the ACS estimates in 80123, 19.5% are under 18 and 21.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (76.3%), then Hispanic or Latino (12.9%).

  • Under 1819.5%
  • 18 to 6459.0%
  • 65 and older21.5%
Age of the people of 80123 (ACS 2020-2024, B01001)
  • White, not Hispanic76.3%
  • Hispanic or Latino12.9%
  • Asian, not Hispanic5.3%
  • Other or two or more3.7%
  • Black, not Hispanic1.7%
Race and Hispanic origin in 80123 (ACS 2020-2024, B03002); each person counted once

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 80123 earn?

Median household income is $105,932 (ACS 2020-2024), the 17th highest of the 28 ranked ZIP codes in Jefferson County. It is not measurably different from 2015-2019 ($101,931 in 2024 dollars): the change is within the surveys' margins of error.

Median household income
$105,932
Income per person
$63,179
Below the poverty line
4.4%
Unemployed (of the labor force)
4.4%
Adults 25+ with a bachelor's degree
53.7%
Adjusted gross income per tax return, 2022
$134,39824,740 returns; wages 57% 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 80123?

FHFA's house price index for 80123, built from repeat sales and appraisals of the same homes, rose 94% from 2015 to 2025 and rose 40% from 2020 to 2025, and moved +0.7% in 2025.

Median home value (owners' estimate)
$620,100
Median gross rent
$2,077
Homes owned by their occupants
72.8%
Housing units
19,953
0 400 800 1200 197619902000201020202025 0 400 800 1200 197619902000201020202025 0 400 800 1200 197619902000201020202025
Index = 100 in 1976, the first year FHFA reports for 80123; 2025: 1377.2. Annual, not seasonally adjusted; FHFA calls its ZIP-level indexes developmental.

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 80123?

1,276 business establishments had a location in this ZIP code in 2023, 99 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).

  • Retail trade208
  • Professional, scientific, and technical services174
  • Health care and social assistance149
  • Accommodation and food services117
  • Real estate and rental and leasing110
  • Other services (except public administration)104

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 80123?

ZIP codes that share a boundary with 80123, then the nearest by center
ZIPTownPeopleHousehold incomeDistance
80235Denver8,373$71k2.4 mi
80236Denver16,863$86k2.9 mi
80120Littleton29,725$94k3.4 mi
80110Englewood23,825$86k3.7 mi
80128Littleton36,712$121k3.8 mi
80127Littleton43,494$137k7.8 mi
80227Denver34,907$90k3.8 mi (near)
80232Denver23,050$96k5.1 mi (near)
80129Littleton30,223$142k5.7 mi (near)

Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.