Residential delivery area · Colorado
ZIP Code 80027: Louisville, CO
ZIP code 80027 uses the postal name Louisville, Colorado and lies entirely in Boulder County (Census 2020 ZIP-county file). About 34,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $154,232 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Louisville (40%) and Superior (20%); 40% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Louisville · its only residential ZIP
- County
- Boulder County
- Census places
- Louisville (40%); Superior (20%)
- Metro area
- Boulder, CO
- House district
- CO-2 119th Congress
- State
- Colorado
- Time zone
- Mountain
- Land area
- 18.6 sq mi · 1,832 people per sq mi
Where is ZIP code 80027?
80027 centers on 39.952°, -105.158° and covers 18.6 square miles of land plus 0.2 of water. It borders 5 ZIP codes: 80303, 80020, 80021, 80026, 80007.
The map draws ZIP code areas only. For the streets inside 80027, 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 80027 compare with the rest of Boulder County?
| Measure | 80027 | In Boulder County | In CO |
|---|---|---|---|
| People (ACS 2020-2024) | 34,127 | 6th of 23 | 60th of 527 |
| Median household income | $154k | 2nd of 15 | 15th of 277 |
| Median home value | $890k | 5th of 16 | 20th of 311 |
Its median household income is higher than in 97% of U.S. residential ZIP codes, and it is denser than 84% 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 80027?
The 2020 Census counted 34,413 people in 80027; the ACS, which samples households over 2020-2024, estimates 34,127. Between the 2010 and 2020 censuses its population grew 10.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 34,127
- 2020 Census count
- 34,413+10.9% since 2010 (31,034)
- Households
- 13,180
- Median age
- 40.3
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 80027?
Of the 34,127 people the ACS estimates in 80027, 24.7% are under 18 and 13.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (74.8%), then Hispanic or Latino (10.2%).
- Under 1824.7%
- 18 to 6461.4%
- 65 and older13.9%
- White, not Hispanic74.8%
- Hispanic or Latino10.2%
- Asian, not Hispanic8.0%
- Other or two or more6.0%
- Black, not Hispanic1.0%
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 80027 earn?
Median household income is $154,232 (ACS 2020-2024), the 2nd highest of the 15 ranked ZIP codes in Boulder County. It rose from $134,840 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $154,232
- Income per person
- $74,415
- Below the poverty line
- 4.0%
- Unemployed (of the labor force)
- 3.6%
- Adults 25+ with a bachelor's degree
- 73.4%
- Adjusted gross income per tax return, 2022
- $153,25216,580 returns; wages 68% 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 80027?
FHFA's house price index for 80027, built from repeat sales and appraisals of the same homes, rose 83% from 2015 to 2025 and rose 36% from 2020 to 2025, and moved −0.3% in 2025.
- Median home value (owners' estimate)
- $890,200
- Median gross rent
- $2,334
- Homes owned by their occupants
- 67.5%
- Housing units
- 13,787
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 80027?
1,425 business establishments had a location in this ZIP code in 2023, 59 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services357
- Health care and social assistance210
- Retail trade110
- Real estate and rental and leasing108
- Accommodation and food services106
- Finance and insurance91
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 80027?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 80303 | Boulder | 24,996 | $79k | 3.1 mi |
| 80020 | Broomfield | 54,201 | $117k | 4.7 mi |
| 80021 | Broomfield | 36,555 | $110k | 4.8 mi |
| 80026 | Lafayette | 32,701 | $120k | 5.2 mi |
| 80007 | Arvada | 19,078 | $176k | 6.2 mi |
| 80305 | Boulder | 16,291 | $126k | 5.1 mi (near) |
| 80310 | Boulder | 7,692 | – | 6.6 mi (near) |
| 80301 | Boulder | 25,007 | $95k | 6.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.