Market insights · Illinois
Kendall County, IL: growth, migration and housing
Kendall County has 145,470 residents, up 9.9% since 2020 (+1.6% in the last year). In 2022–2023, 4,839 households moved in and 4,296 moved out (+543 net), bringing in a net $32.6M of income. Median household income is $111,601, the median home $322,400 and median rent $1,781 a month.
In Illinois: 1st of 102 counties for 5-year population growth · 1st of 102 counties for net in-migration (per resident) · 2nd of 102 counties for median household income · 5th of 102 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Kendall County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Kane County, IL | 982 | $58.3M |
| DuPage County, IL | 967 | $78.9M |
| Will County, IL | 863 | $74.1M |
| Cook County, IL | 659 | $48.4M |
| DeKalb County, IL | 144 | $7.9M |
| LaSalle County, IL | 103 | $7.0M |
| Grundy County, IL | 62 | $4.2M |
| Lake County, IL | 34 | $3.1M |
Where leavers went
Top counties by households leaving Kendall County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Kane County, IL | 745 | $47.2M |
| Will County, IL | 561 | $42.5M |
| DuPage County, IL | 523 | $39.7M |
| Cook County, IL | 440 | $31.9M |
| DeKalb County, IL | 208 | $11.9M |
| LaSalle County, IL | 172 | $11.4M |
| Grundy County, IL | 86 | $7.3M |
| Maricopa County, AZ | 52 | $4.2M |
BizyFi in Kendall 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.