Compare states / Illinois / to Connecticut
IL → CT
Moving from Illinois to Connecticut
Taxes, housing, and other important data at a glance
Illinois vs Connecticut using the same fields as the all-states table. Green and red mark the destination figure when it differs.
| Illinois | Connecticut | |
|---|---|---|
| Top state income-tax rate | 4.95% | 6.99% |
| Average sales tax (state + local) | 8.96% | 6.35% |
| Average property tax (real estate) | 2.23% | 2.14% |
| Personal property tax (vehicles) | No | Yes — 2.07% effective |
| Median home value | $292,979 | $444,038 |
| Tax when you title a car | 6.25% | 6.35% |
| State parks | 63 | 107 |
| National parks | 0 | 0 |
| Population density | 229.0/sq mi | 765.0/sq mi |
| Violent crime per 100,000 | 289.2 | 136.0 |
| Demographics | 58.8% White (non-Hispanic) 18.2% Hispanic 15.3% Black 6.0% Asian | 63.3% White (non-Hispanic) 18.2% Hispanic 13.5% Black 5.1% Asian |
| Days to get a license | 90 | 30 |
| Days to title a car | 30 | 60 |
Will my state income tax go up or down if I move from Illinois to Connecticut?
Illinois: Flat 4.95%. Connecticut: Top listed rate 6.99%. At $120,000 yearly income and 0 dependents, the bracket sketch is $5,940 in Illinois vs $5,950 in Connecticut. If you earned in both states this year, see IL tax agency and CT tax agency.
Will my state income tax go up or down if I move from Illinois to Connecticut?
This uses 2026 single-filer brackets (top listed 4.95% vs 6.99%), minus a $4,300 exemption per dependent. It is not your actual tax bill.
Vehicle title, registration, and tax in Connecticut
New Connecticut residents typically have 60 days to title and register. Inspection: Varies by county — confirm locally. The title-tax rate used here is 6.35%. On a $28,000 vehicle, state charges in the sketch are $1,893.00 (tax $1,778.00 + title $25.00 + registration $80.00 + plate $10.00). County and weight fees are omitted on purpose.
Estimate what you’ll pay to title the car in Connecticut
Title fee + plate + base registration + 6.35% tax. County extras are not included.
Driver’s license in Connecticut
After you become a Connecticut resident, you typically have 30 days to get a Connecticut driver license. Bring your Illinois license, Social Security number, and proof you live in Connecticut. Agencies often ask for two proofs; the exact list is on the official Connecticut DMV. Illinois plates are not a substitute for Connecticut registration once the title clock runs out.
Checklist for new Connecticut residents from Illinois
- Get a CT driver license within 30 days. Bring your IL license, Social Security number, and proof you live in Connecticut (agencies often ask for two proofs; use the official Connecticut DMV list).
- Title and register the car within 60 days. Inspection: Varies by county — confirm locally.
- Make sure car insurance meets 25/50/25.
- Register to vote. Typical close: 15 days before an election. Connecticut elections site.
- If you earned money in both states this year, you may need to file in both. IL tax agency · CT tax agency.
- Connecticut is in the nurse compact; Illinois is not. You may still need a CT license if you change primary residence.
Biggest differences in moving from Illinois to Connecticut
- Top listed income-tax rate: 4.95% in Illinois vs 6.99% in Connecticut (lower in Illinois).
- New Connecticut residents typically have 30 days to get a driver license (90 days is the Illinois window in this file).
- Title the car in Connecticut within 60 days. Illinois plates are not a substitute once that clock runs.
- Connecticut lists a vehicle personal-property tax (2.07% effective); Illinois does not.
- Connecticut is in the nurse compact; Illinois is not. You may still need a CT license if you change primary residence.
Common questions
How does sales tax in Connecticut compare to Illinois?
Average combined sales tax (state + local) is 8.96% in Illinois vs 6.35% in Connecticut. City and county add-ons vary; this is a statewide average.
Will my state income tax go up or down if I move from Illinois to Connecticut?
The top listed rate goes up: 4.95% in Illinois vs 6.99% in Connecticut. At $120,000 yearly income and 0 dependents, the bracket sketch is $5,940 in Illinois vs $5,950 in Connecticut. Actual bills depend on income, filing status, local tax, credits, and residency timing. This uses 2026 single-filer brackets after a $4,300 exemption per dependent.
How many state and national parks are in Illinois vs Connecticut?
Illinois has 63 state parks and 0 national parks in this file. Connecticut has 107 state parks and 0 national parks. State-park counts follow each agency’s own list; national parks are NPS units titled National Park.
How does population density in Connecticut compare to Illinois?
Population density is 229.0 people per square mile in Illinois vs 765.0 in Connecticut.
How do Illinois and Connecticut compare on demographics?
Illinois: 58.8% White (non-Hispanic), 18.2% Hispanic, 15.3% Black, 6.0% Asian. Connecticut: 63.3% White (non-Hispanic), 18.2% Hispanic, 13.5% Black, 5.1% Asian. These are statewide estimates; cities and counties differ.
Related moves
Also see moving to Connecticut and the reverse route, Connecticut → Illinois.
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