Market insights · Hawaii
Kauai County, HI: growth, migration and housing
Kauai County has 73,400 residents, up 0.3% since 2020 (-0.1% in the last year). In 2022–2023, 1,188 households moved in and 1,318 moved out (-130 net), bringing in a net $7.9M of income. Median household income is $97,668, the median home $873,200 and median rent $1,870 a month.
In Hawaii: 3rd of 5 counties for 5-year population growth · 2nd of 4 counties for net in-migration (per resident) · 2nd of 5 counties for median household income · 3rd of 4 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Kauai County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Los Angeles County, CA | 49 | $4.2M |
| San Diego County, CA | 41 | $3.1M |
| Orange County, CA | 32 | $7.6M |
| Clark County, NV | 26 | $1.4M |
| Maricopa County, AZ | 23 | $2.8M |
| King County, WA | 23 | $3.8M |
| Riverside County, CA | 20 | $2.4M |
Where leavers went
Top counties by households leaving Kauai County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Clark County, NV | 52 | $3.3M |
| Los Angeles County, CA | 36 | $2.1M |
| San Diego County, CA | 30 | $2.3M |
| Orange County, CA | 29 | $2.2M |
| King County, WA | 28 | $2.3M |
| Maricopa County, AZ | 23 | $2.2M |
BizyFi in Kauai County
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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.