ZIP Code 80403 has segments in 3 Counties (Boulder, Gilpin, Jefferson).
The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.
POPULATION | |
|---|---|
| Total Population | 21,355 (100%) |
| Population in Households | 21,324 (99.9%) |
| Population in Families | 17,554 (82.2%) |
| Population in Group Quarters1 | 31 ( 0.1%) |
| Population Density | 143 |
| Diversity Index2 | 33 |
INCOME | |
| Median Household Income | $152,608 |
| Average Household Income | $195,652 |
| % of Income for Mortgage4 | 36% |
| Per Capita Income | $78,413 |
| Wealth Index5 | 211 |
| Socioeconomic Status Index6 | High (67.1) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 9,184 (100%) |
| Owner Occupied HU | 7,073 (77.0%) |
| Renter Occupied HU | 1,485 (16.2%) |
| Vacant Housing Units | 626 ( 6.8%) |
| Median Home Value | $880,886 |
| Average Home Value | $959,937 |
| Housing Affordability Index3 | 69 |
HOUSEHOLDS | |
| Total Households | 8,558 |
| Average Household Size | 2.49 |
| Family Households | 5,937 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | -0.02% | 0.06% |
| Households | 0.07% | 0.01% |
| Families | -0.13% | |
| Median Household Income | 3.51% | |
| Per Capita Income | 2.27% | |
| Owner Occupied HU | 0.30% |
The table below compares 80403 to the other 524 ZIP Codes in Colorado by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 121 | 77th |
| Population Density | # 197 | 63rd |
| Median Household Income | # 21 | 96th |
| Housing Affordability Index | # 290 | 55th |
| Per Capita Income | # 29 | 95th |
| Diversity Index | # 435 | 17th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Colorado Census Data Comparison Tool.