ZIP Code 80503
standardSource:
Longmont · Boulder County · Colorado
- Population
- 31,064
- Median income
- $113,620
- Median home value
- $755,500
- Bachelor's or higher
- 59.9%
- Land area
- 235.9 sq mi
132/sq mi
▲ 49% vs US
higher than 88% of US ZIPs
▲ 172% vs US
higher than 95% of US ZIPs
Median age 44.8
Denver
ZIP code 80503 in Longmont, Colorado has a population of 31,064. The median household income is $113,620, which is 49% above the national average. Median home value is $755,500, 172% above the US average. 59.9% of residents hold a bachelor's degree or higher.
ZIP code 80503 is classified by USPS as a standard delivery area and covers roughly 235.9 square miles in Longmont, Boulder County, Colorado. The area is home to 31,064 residents, producing a population density of 132 people per square mile, and falls within the Denver time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 80503 against Colorado and the nation.
On the economic side, the median household income for ZIP 80503 sits at $113,620 (28% above the Colorado average), while per-capita income is $64,526. The poverty rate stands at 5.8% and the unemployment rate at 3.5%. On housing, the median home value is $755,500 (56% above the state average) with median rent at $1,872 per month, and 66.1% of occupied units are owner-occupied, a direct signal of whether 80503 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 59.9% of adults hold a bachelor's degree or higher, the median age is 44.8, and the average commute is 23 minutes. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Boulder County, so you can benchmark 80503 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 80503
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 80503.
- Professional, scientific, and technical services
Professional, scientific, and technical services
195 establishments
- Construction
Construction
88 establishments
- Health care and social assistance
Health care and social assistance
81 establishments
- Real estate and rental and leasing 68
Real estate and rental and leasing
68 establishments
- Other services (except public administration) 52
Other services (except public administration)
52 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 80503, Longmont, CO · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
31,064
Population
235.9
Area (sq mi)
132
People / sq mi
Denver
Time Zone
standard
ZIP Type
Who lives in ZIP 80503?
44.8
Median Age
49.2%
Male
50.8%
Female
7.7%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$113,620
Median Household Income
+28% vs state
$64,526
Per Capita Income
5.8%
Poverty Rate
3.5%
Unemployment Rate
23.1 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
15,737
Total Housing Units
15,153
Occupied Units
584
Vacant Units
2.35
Avg Household Size
Occupancy Type
$755,500
Median Home Value
+56% vs state
$1,872
Median Rent
1994
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+4.8%
YoY Change (2024)
269
HPI Index (2000 = 100)
+169%
Total Change Since 2000
Home values in ZIP 80503 have increased 4.8% over the past year (2024). Since 2000, this ZIP has seen +169% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +1.8% | 194 |
| 2021 | +10.2% | 214 |
| 2022 | +19.6% | 256 |
| 2023 | +0.3% | 256 |
| 2024 | +4.8% | 269 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 767 business establishments in ZIP 80503, employing approximately 7,488 people with a combined annual payroll of $662,524,000.
767
Businesses
7,488
Employees
$662.5M
Annual Payroll
17
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 195 | 25.4% |
| Construction | 88 | 11.5% |
| Health care and social assistance | 81 | 10.6% |
| Real estate and rental and leasing | 68 | 8.9% |
| Other services (except public administration) | 52 | 6.8% |
| Administrative and support and waste management and remediation services | 38 | 5.0% |
| Retail trade | 37 | 4.8% |
| Finance and insurance | 34 | 4.4% |
| Accommodation and food services | 33 | 4.3% |
| Wholesale trade | 29 | 3.8% |
| Manufacturing | 28 | 3.6% |
| Arts, entertainment, and recreation | 22 | 2.9% |
| Information | 21 | 2.7% |
| Educational services | 17 | 2.2% |
| Agriculture, forestry, fishing and hunting | 11 | 1.4% |
| Transportation and warehousing | 8 | 1.0% |
| Management of companies and enterprises | 3 | 0.4% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 80503 vs 80544 →
More ZIP Codes in Boulder County
Related Areas
Frequently Asked Questions
What county is ZIP code 80503 in? ▼
What is the population of ZIP code 80503? ▼
What is the median household income in ZIP 80503? ▼
What is the average home value in ZIP 80503? ▼
What is the demographic makeup of ZIP 80503? ▼
How many businesses are in ZIP code 80503? ▼
What are the main industries in ZIP code 80503? ▼
How have home values changed in ZIP code 80503? ▼
What is the education level in ZIP code 80503? ▼
What is the average commute time in ZIP 80503? ▼
What percentage of residents own vs. rent in ZIP 80503? ▼
What is the poverty rate in ZIP code 80503? ▼
ZIP Code Research Guides
Official Data Resources for Longmont, CO
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.