Residential delivery area · Colorado
ZIP Code 80540: Lyons, CO
ZIP code 80540 uses the postal name Lyons, Colorado and lies mostly in Boulder County (65% of its land) with the rest in Larimer County (Census 2020 ZIP-county file). About 4,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $139,521 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Lyons, and 2% in smaller places; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Lyons · its only residential ZIP
- County
- Boulder County (65%); Larimer County (35%)
- Census places
- Lyons
- Metro area
- Boulder, CO
- House district
- CO-2 119th Congress
- State
- Colorado
- Time zone
- Mountain
- Land area
- 152.8 sq mi · 30 people per sq mi
Where is ZIP code 80540?
80540 centers on 40.225°, -105.400° and covers 152.8 square miles of land plus 0.5 of water. It borders 8 ZIP codes: 80455, 80503, 80510, 80481, 80302, 80537, 80517, 80446.
The map draws ZIP code areas only. For the streets inside 80540, 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 80540 compare with the rest of Boulder County?
| Measure | 80540 | In Boulder County | In CO |
|---|---|---|---|
| People (ACS 2020-2024) | 4,642 | 16th of 23 | 233rd of 527 |
| Median household income | $140k | 4th of 15 | 25th of 277 |
| Median home value | $796k | 7th of 16 | 35th of 311 |
Its median household income is higher than in 95% of U.S. residential ZIP codes, and it is denser than 33% 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 80540?
The 2020 Census counted 4,710 people in 80540; the ACS, which samples households over 2020-2024, estimates 4,642. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 4,642±715 (90% margin)
- 2020 Census count
- 4,710
- Households
- 2,025
- Median age
- 48.1
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 80540?
Of the 4,642 people the ACS estimates in 80540, 21.3% are under 18 and 21.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (86.0%).
- Under 1821.3%
- 18 to 6457.0%
- 65 and older21.6%
- White, not Hispanic86.0%
- Hispanic or Latino6.7%
- Other or two or more6.0%
- Black, not Hispanic0.7%
- Asian, 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 80540 earn?
Median household income is $139,521 (ACS 2020-2024), the 4th highest of the 15 ranked ZIP codes in Boulder County.
- Median household income
- $139,521±$24,037
- Income per person
- $69,719
- Below the poverty line
- 8.1%
- Unemployed (of the labor force)
- 2.4%
- Adults 25+ with a bachelor's degree
- 60.5%
- Adjusted gross income per tax return, 2022
- $120,1952,340 returns; wages 61% 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 80540?
FHFA's house price index for 80540, built from repeat sales and appraisals of the same homes, rose 97% from 2015 to 2025 and rose 38% from 2020 to 2025, and moved +3.9% in 2025.
- Median home value (owners' estimate)
- $795,500
- Median gross rent
- $2,112
- Homes owned by their occupants
- 89.0%
- Housing units
- 2,621
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 80540?
160 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services30
- Construction24
- Retail trade18
- Accommodation and food services18
- Health care and social assistance13
- Real estate and rental and leasing9
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 80540?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 80455 | Jamestown | 501 | $169k | 9.0 mi |
| 80503 | Longmont | 35,846 | $114k | 10.7 mi |
| 80510 | Allenspark | 663 | $101k | 10.9 mi |
| 80481 | Ward | 484 | $117k | 12.6 mi |
| 80302 | Boulder | 29,569 | $62k | 14.1 mi |
| 80537 | Loveland | 44,425 | $86k | 15.2 mi |
| 80517 | Estes Park | 9,657 | $95k | 16.5 mi |
| 80446 | Granby | 4,017 | $75k | 28.5 mi |
| 80304 | Boulder | 25,383 | $127k | 13.8 mi (near) |
| 80544 | Niwot | 0 | – | 14.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.