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US ZIP Code Profile

ZIP Code 80123
Littleton, Colorado

ZIP code 80123 is in Littleton, located in Jefferson County, Colorado, within the Denver-Aurora-Lakewood metro area. Its 2020 Census population was 47,302. The estimated median adjusted gross income per tax return is $68,049, and about 12% of filers report $200,000 or more.

2020 Population
47,302
Census ZCTA
County
Jefferson
FIPS 08059
Median income (est.)
$68,049
IRS SOI 2022
Land Area
11.857 mi²
+ 1.624 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityLittleton, CO
CountyJefferson County (FIPS 08059)
StateColorado (FIPS 08)
Metro Area (MSA)Denver-Aurora-Lakewood, CO Metro Area (19740)
Census Region / DivisionWest Region · Mountain Division
Coordinates39.61601, -105.06945
Land / Water Area11.857 mi² land · 1.624 mi² water

02Income & Economics

Distribution of the 24,740 individual tax returns filed in 80123 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
19.7%
$25K–$50K
18.3%
$50K–$75K
16.6%
$75K–$100K
11.3%
$100K–$200K
21.8%
$200K+
12.4%
The $200,000+ bracket accounts for 56% of 80123's total adjusted gross income, from 12% of returns — a concentration that drives the gap between the median ($68,049) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 80123's IRS income metrics, 2020–2022.

Median income (2021→2022)
$68,049
▲ 5.3%
Filers earning $200K+
12.4%
▲ 0.4 pt
Total filers
24,740
▲ 0.5%
GET /zipc/v2/zipcodes/80123/soi?year=… $60K 2020 $65K 2021 $68K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 80123 ZCTA.

2000
41,552
 
2010
44,795
▲ +7.8%
2020
47,302
▲ +5.6%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 80123. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 80123

Littleton and its immediate neighbors, sorted by distance.

3 mi
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Distance from 80123 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortB
USPS Finance Number075580
City AliasesBow Mar, Columbine Valley, Denver, Lakewood, Littleton, Columbine Vly, Grants Ranch

07Frequently Asked Questions

What county is ZIP code 80123 in?

ZIP code 80123 is in Jefferson County, Colorado (county FIPS code 08059).

What city is ZIP code 80123?

The primary USPS city for 80123 is Littleton, CO.

What metro area (MSA) is 80123 in?

80123 is part of the Denver-Aurora-Lakewood, CO Metro Area (MSA code 19740).

What is the population of ZIP code 80123?

The 2020 Census population of 80123 was 47,302 residents.

What is the median income in ZIP code 80123?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 80123 is about $68,049, with around 12% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.