Moving from Chicago, IL to Thornton, CO
It is 993 mi between Chicago and Thornton β roughly 17h 37m of driving, plus rest stops and overnight, through 4 state(s). A long-haul move crosses climate zones and usually state-income-tax lines. This page assembles the federal and Zillow data into a side-by-side comparison so the differences are easy to scan.
993 mi Β· 17h 37m by car Β· IL β IA β NE β CO
Distance & route
| Route through | IL β IA β NE β CO |
|---|---|
| Primary highways | I 80 EXPRESS, I 80, I 76 |
| Major cities en route | Naperville, Joliet, Aurora, Elgin, Rockford |
Route via OSRM driving profile. Actual time varies with traffic and season.
Cost of living
| Chicago | Thornton | U.S. avg | |
|---|---|---|---|
| All items (RPP) | 103.595 | 105.782 | 100.0 |
| Rents | 83.581 | 87.856 | 100.0 |
| Goods | 107.258 | 100.957 | 100.0 |
| Services | 112.01 | 146.919 | 100.0 |
Chicago and Thornton sit within 5% on the overall BEA RPP β the composite diff is small, but rent or groceries alone may move more.
Source: BEA Regional Price Parities (MSA-level Β· MSA-level); 2024.
Housing prices
Zillow ZHVI climbs from $317,283 in Chicago to $502,945 in Thornton, a 2.1% increase on the typical home value.
YoY change: Chicago +2.8%, Thornton -3.3%. Snapshot: 2026-03. Data provided by Zillow.
Climate
| 1991β2020 normals | Chicago | Thornton |
|---|---|---|
| Annual avg temperature | 51Β°F | 52Β°F |
| January avg low | 20Β°F | 19Β°F |
| July avg high | 81Β°F | 91Β°F |
| Annual snowfall | β | 44.8" |
| Annual precipitation | β | 14.5" |
Climate is roughly comparable on the annual mean β 50.8Β°F vs 52.4Β°F per NOAA 1991β2020 normals.
Significant snow at the destination: Thornton sees 44.8 in a year on NOAA normals β budget for winter gear and plowing.
Source: NOAA U.S. Climate Normals 1991β2020 (stations: CHICAGO NORTHERLY IS, IL US, NORTHGLENN, CO US).
Demographics
| ACS 5-year 2023 | Chicago | Thornton |
|---|---|---|
| Population | 2,707,648 | 142,878 |
| Median household income | $75,134 | $100,985 |
| Median age | 35.7 | 34.3 |
| Bachelor's degree or higher | 24.9% | 22.3% |
| Avg household size | 2.36 | 2.88 |
Thornton households earn about 2.1% more than Chicago at the median β $75,134 β $100,985 on ACS 2023.
Source: U.S. Census Bureau, ACS 5-year 2023.
Jobs & wages
Top occupations in Thornton MSA
| Occupation | Employment | Median wage |
|---|---|---|
| Office and Administrative Support Occupations | 173,910 | $49,000 |
| Sales and Related Occupations | 172,890 | $48,280 |
| Business and Financial Operations Occupations | 164,250 | $84,370 |
| Food Preparation and Serving Related Occupations | 140,150 | $36,010 |
| Transportation and Material Moving Occupations | 129,510 | $45,350 |
Source: BLS Occupational Employment and Wage Statistics.
Moving between Illinois and Colorado
State income-tax top marginal rates are from the Tax Foundation, updated annually. Check Colorado's DMV for the current deadline to transfer driver license and vehicle registration after establishing residency. Consult a tax professional for your specific filing situation β state tax treatment depends on residency, sourcing, and reciprocity agreements.
Best time to move
Moving companies typically charge 20β30% more between Memorial Day and Labor Day (peak season). October through April offers the lowest rates and better mover availability.
To avoid mid-semester school transfers, most U.S. families schedule moves between mid-June and mid-August. Public school calendars typically run late August or early September through late May or early June.
Winter driving along this route
- Mountain passes on I-70 west of Denver and on I-25 near Raton can close for snow November through April β check CDOT alerts before departure.
State DOT 511 phone or web services provide real-time road conditions year-round.
Packing & arrival checklist
- Winter gear first: Thornton averages 44.8 in of snow per year on NOAA normals β pack a heavy coat, boots, and consider snow tires or chains before the first storm.
- Air conditioning matters: July highs in Thornton average 91Β°F on NOAA normals. If the new place has window-unit or no AC, plan that purchase for the first week.
- Dry climate: Thornton sees only 14.5 in of precipitation a year. A humidifier helps keep wood furniture from cracking and is easier on skin and sinuses.
- Arrange utility connection (power, internet, gas, water) two weeks ahead of move-in.
- Update mailing address with USPS change-of-address within the first week post-move.
- Register to vote in Colorado after establishing residency.
Frequently asked
How much do homes cost in Thornton compared to Chicago?
Zillow ZHVI (2026-03) puts the typical home value at $502,945 in Thornton vs $317,283 in Chicago β a 58.5% higher figure. Data provided by Zillow Research.
How does the job market in Thornton compare to Chicago?
BLS Occupational Employment and Wage Statistics show median wages of $58,490 in the Thornton MSA vs $49,790 in the Chicago MSA, on total employment of 1,590,330 and 4,506,800 respectively. Top occupations on the destination side appear in the Jobs & wages section above.
Is Thornton more expensive than Chicago?
Based on BEA Regional Price Parities (2024), overall price level in Thornton is 2.1% higher than Chicago (105.782 vs 103.595, U.S. average = 100). Rent and services typically carry most of this gap.
How does household income compare in Chicago vs Thornton?
Median household income on the Census ACS 5-year (2023) is $100,985 in Thornton vs $75,134 in Chicago β a 34.4% higher figure. Compare this against the cost-of-living gap above when budgeting.
When is the best time to move from Chicago to Thornton?
Moving companies usually charge 20β30% less between October and April (off-peak). Memorial Day through Labor Day is peak pricing. For a 993 mi drive, weather on the route matters too β see the timing section above for state-specific winter warnings.
How far is Thornton, CO from Chicago, IL?
The driving distance is 993 mi and the route typically takes 17h 37m via I 80 EXPRESS and I 80. The trip crosses 4 state(s). Actual time varies with traffic and season.
Plan the move
Estimate costs with our moving cost calculator, or see where else to move from Chicago.
City profiles: Chicago, IL Β· Thornton, CO.