Moving from St. Louis, MO to Thornton, CO
The drive from St. Louis, MO to Thornton, CO runs 852 mi β about 15h 4m on interstate, longer with stops. Long-range relocations typically bring real shifts in cost of living, housing prices, climate, and job market. Below, each of those layers is pulled from its source (BEA, Census, Zillow, BLS, NOAA) for a direct comparison.
852 mi Β· 15h 4m by car Β· MO β KS β CO
Distance & route
| Route through | MO β KS β CO |
|---|---|
| Primary highways | I 70, US 40, US 24 |
| Major cities en route | Columbia, Independence, Lee S Summit, Kansas City, Overland Park |
Route via OSRM driving profile. Actual time varies with traffic and season.
Cost of living
| St. Louis | Thornton | U.S. avg | |
|---|---|---|---|
| All items (RPP) | 95.088 | 105.782 | 100.0 |
| Rents | 69.921 | 87.856 | 100.0 |
| Goods | 99.996 | 100.957 | 100.0 |
| Services | 79.024 | 146.919 | 100.0 |
BEA RPP moves from 95.088 in St. Louis to 105.782 in Thornton, a 11.2% bump on the overall price level.
Source: BEA Regional Price Parities (MSA-level Β· MSA-level); 2024.
Housing prices
YoY change: St. Louis β, Thornton -3.3%. Snapshot: 2026-03. Data provided by Zillow.
Climate
| 1991β2020 normals | St. Louis | Thornton |
|---|---|---|
| Annual avg temperature | 58Β°F | 52Β°F |
| January avg low | 25Β°F | 19Β°F |
| July avg high | 90Β°F | 91Β°F |
| Annual snowfall | β | 44.8" |
| Annual precipitation | 43.9" | 14.5" |
Climate cools by 5.6Β°F on the annual average β 58.0Β°F β 52.4Β°F.
Heavy-snow city: expect 44.8 in of snowfall annually at Thornton.
Source: NOAA U.S. Climate Normals 1991β2020 (stations: ST LOUIS SCI CTR, MO US, NORTHGLENN, CO US).
Demographics
| ACS 5-year 2023 | St. Louis | Thornton |
|---|---|---|
| Population | 293,109 | 142,878 |
| Median household income | $55,279 | $100,985 |
| Median age | 36.6 | 34.3 |
| Bachelor's degree or higher | 22% | 22.3% |
| Avg household size | 2.03 | 2.88 |
Income gap is large: median household income climbs 11.2% between St. Louis and Thornton (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 Missouri 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 far is Thornton, CO from St. Louis, MO?
The driving distance is 852 mi and the route typically takes 15h 4m via I 70 and US 40. The trip crosses 3 state(s). Actual time varies with traffic and season.
How does household income compare in St. Louis vs Thornton?
Median household income on the Census ACS 5-year (2023) is $100,985 in Thornton vs $55,279 in St. Louis β a 82.7% higher figure. Compare this against the cost-of-living gap above when budgeting.
How does the job market in Thornton compare to St. Louis?
BLS Occupational Employment and Wage Statistics show median wages of $58,490 in the Thornton MSA vs $47,490 in the St. Louis MSA, on total employment of 1,590,330 and 1,325,480 respectively. Top occupations on the destination side appear in the Jobs & wages section above.
When is the best time to move from St. Louis to Thornton?
Moving companies usually charge 20β30% less between October and April (off-peak). Memorial Day through Labor Day is peak pricing. For a 852 mi drive, weather on the route matters too β see the timing section above for state-specific winter warnings.
Is Thornton more expensive than St. Louis?
Based on BEA Regional Price Parities (2024), overall price level in Thornton is 11.2% higher than St. Louis (105.782 vs 95.088, U.S. average = 100). Rent and services typically carry most of this gap.
Plan the move
Estimate costs with our moving cost calculator, or see where else to move from St. Louis.
City profiles: St. Louis, MO Β· Thornton, CO.