Residential delivery area · Colorado
ZIP Code 80421: Bailey, CO
ZIP code 80421 uses the postal name Bailey, Colorado and lies mostly in Park County (98% of its land) with the rest in Jefferson County (Census 2020 ZIP-county file). About 8,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $98,452 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Bailey · its only residential ZIP
- County
- Park County (98%); Jefferson County (2%)
- Metro area
- Denver-Aurora-Centennial, CO
- House district
- CO-7 119th Congress
- State
- Colorado
- Time zone
- Mountain
- Land area
- 104.3 sq mi · 82 people per sq mi
Where is ZIP code 80421?
80421 centers on 39.461°, -105.501° and covers 104.3 square miles of land plus 0.2 of water. It borders 5 ZIP codes: 80475, 80470, 80439, 80448, 80452.
The map draws ZIP code areas only. For the streets inside 80421, 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).
How does 80421 compare with the rest of Park County?
| Measure | 80421 | In Park County | In CO |
|---|---|---|---|
| People (ACS 2020-2024) | 8,536 | 1st of 12 | 189th of 527 |
| Median household income | $99k | 3rd of 4 | 116th of 277 |
| Median home value | $579k | 3rd of 5 | 118th of 311 |
Its median household income is higher than in 80% of U.S. residential ZIP codes, and it is denser than 51% 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 80421?
The 2020 Census counted 8,179 people in 80421; the ACS, which samples households over 2020-2024, estimates 8,536. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 8,536
- 2020 Census count
- 8,179
- Households
- 4,056
- Median age
- 48.7
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 80421?
Of the 8,536 people the ACS estimates in 80421, 15.4% are under 18 and 21.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (84.9%).
- Under 1815.4%
- 18 to 6463.0%
- 65 and older21.6%
- White, not Hispanic84.9%
- Hispanic or Latino8.8%
- Other or two or more5.5%
- Black, not Hispanic0.9%
- Asian, not Hispanic0.0%
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 80421 earn?
Median household income is $98,452 (ACS 2020-2024), the 3rd highest of the 4 ranked ZIP codes in Park County.
- Median household income
- $98,452±$14,117
- Income per person
- $60,069
- Below the poverty line
- 5.3%
- Unemployed (of the labor force)
- 2.9%
- Adults 25+ with a bachelor's degree
- 39.7%
- Adjusted gross income per tax return, 2022
- $90,4804,000 returns; wages 70% 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 80421?
FHFA's house price index for 80421, built from repeat sales and appraisals of the same homes, rose 113% from 2015 to 2025 and rose 44% from 2020 to 2025, and moved +4.1% in 2025.
- Median home value (owners' estimate)
- $578,700
- Median gross rent
- $1,962
- Homes owned by their occupants
- 90.9%
- Housing units
- 4,597
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 80421?
187 business establishments had a location in this ZIP code in 2023, 12 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction42
- Professional, scientific, and technical services31
- Other services (except public administration)20
- Retail trade15
- Accommodation and food services13
- Administrative and support and waste management and remediation services12
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 80421?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 80475 | Shawnee | 39 | – | 6.7 mi |
| 80470 | Pine | 3,608 | $136k | 11.0 mi |
| 80439 | Evergreen | 24,610 | $156k | 12.4 mi |
| 80448 | Grant | 0 | – | 17.8 mi |
| 80452 | Idaho Springs | 3,135 | $76k | 18.1 mi |
| 80433 | Conifer | 8,292 | $134k | 10.9 mi (near) |
| 80456 | Jefferson | 507 | – | 14.5 mi (near) |
| 80457 | Kittredge | 283 | $235k | 17.0 mi (near) |
| 80444 | Georgetown | 1,053 | $79k | 17.2 mi (near) |
| 80425 | Buffalo Creek | 243 | $82k | 17.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.