Market insights · Colorado
Boulder County, CO: growth, migration and housing
Boulder County has 328,560 residents, down 0.7% since 2020 (-0.3% in the last year). In 2022–2023, 13,277 households moved in and 14,140 moved out (-863 net), bringing in a net $53.1M of income. Median household income is $103,994, the median home $756,300 and median rent $1,966 a month.
In Colorado: 46th of 64 counties for 5-year population growth · 42nd of 60 counties for net in-migration (per resident) · 8th of 64 counties for median household income · 5th of 64 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Boulder County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Denver County, CO | 1,036 | $134.5M |
| Weld County, CO | 848 | $55.4M |
| Jefferson County, CO | 813 | $69.6M |
| Adams County, CO | 745 | $75.2M |
| Larimer County, CO | 742 | $53.3M |
| Broomfield County, CO | 671 | $66.7M |
| Arapahoe County, CO | 341 | $24.2M |
| Los Angeles County, CA | 230 | $23.3M |
Where leavers went
Top counties by households leaving Boulder County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Weld County, CO | 1,534 | $126.1M |
| Denver County, CO | 1,300 | $95.5M |
| Jefferson County, CO | 1,060 | $89.8M |
| Larimer County, CO | 984 | $88.0M |
| Adams County, CO | 960 | $66.9M |
| Broomfield County, CO | 791 | $73.7M |
| Arapahoe County, CO | 293 | $19.6M |
| Douglas County, CO | 192 | $18.4M |
BizyFi in Boulder County
12 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse Colorado companies.
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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.