Moving from Thornton, CO to Ontario, CA
The drive from Thornton, CO to Ontario, CA runs 992 mi β about 17h 25m 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.
992 mi Β· 17h 25m by car Β· CA β NV β AZ β UT β CO
Distance & route
| Route through | CA β NV β AZ β UT β CO |
|---|---|
| Primary highways | I 70, I 15, US 66 HIST |
| Major cities en route | Anaheim, Santa Ana, Irvine, Garden Grove, Corona |
Route via OSRM driving profile. Actual time varies with traffic and season.
Cost of living
| Thornton | Ontario | U.S. avg | |
|---|---|---|---|
| All items (RPP) | 105.782 | 106.442 | 100.0 |
| Rents | 87.856 | 148.641 | 100.0 |
| Goods | 100.957 | 101.431 | 100.0 |
| Services | 146.919 | 129.312 | 100.0 |
Cost-of-living overlap: BEA RPP for Thornton (105.782) and Ontario (106.442) are within a few points of each other.
Source: BEA Regional Price Parities (MSA-level Β· MSA-level); 2024.
Housing prices
Homes run dramatically pricier in Ontario: 0.6% above Thornton on Zillow ZHVI (2026-03).
YoY change: Thornton -3.3%, Ontario -1.7%. Snapshot: 2026-03. Data provided by Zillow.
Climate
| 1991β2020 normals | Thornton | Ontario |
|---|---|---|
| Annual avg temperature | 52Β°F | 67Β°F |
| January avg low | 19Β°F | 45Β°F |
| July avg high | 91Β°F | 94Β°F |
| Annual snowfall | 44.8" | β |
| Annual precipitation | 14.5" | 11.6" |
Climate warms by 14.4Β°F on the annual average β 52.4Β°F β 66.8Β°F.
Source: NOAA U.S. Climate Normals 1991β2020 (stations: NORTHGLENN, CO US, ONTARIO INTL AP, CA US).
Demographics
| ACS 5-year 2023 | Thornton | Ontario |
|---|---|---|
| Population | 142,878 | 178,347 |
| Median household income | $100,985 | $82,806 |
| Median age | 34.3 | 33.1 |
| Bachelor's degree or higher | 22.3% | 15.1% |
| Avg household size | 2.88 | 3.39 |
Income steps down 0.6%: $100,985 in Thornton vs $82,806 in Ontario.
Source: U.S. Census Bureau, ACS 5-year 2023.
Jobs & wages
Top occupations in Ontario MSA
| Occupation | Employment | Median wage |
|---|---|---|
| Transportation and Material Moving Occupations | 267,890 | $47,210 |
| Office and Administrative Support Occupations | 177,100 | $47,040 |
| Food Preparation and Serving Related Occupations | 167,590 | $34,570 |
| Sales and Related Occupations | 136,950 | $36,420 |
| Healthcare Support Occupations | 115,940 | $32,240 |
Source: BLS Occupational Employment and Wage Statistics.
Moving between Colorado and California
State income-tax top marginal rates are from the Tax Foundation, updated annually. Check California'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
- Donner Pass (I-80) and Tejon Pass (I-5 Grapevine) see chain requirements and occasional closures December through March.
- I-80 east of Reno and US-50 across the Sierra can require chains in winter storms.
- I-17 and I-40 through the Flagstaff area can see winter closures; the rest of Arizona is generally clear year-round.
- I-80 through Parleys Canyon and I-70 through the San Rafael Swell see winter closures; I-15 north of Salt Lake can slow in storms.
- 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
- Air conditioning matters: July highs in Ontario average 94Β°F on NOAA normals. If the new place has window-unit or no AC, plan that purchase for the first week.
- Dry climate: Ontario sees only 11.6 in of precipitation a year. A humidifier helps keep wood furniture from cracking and is easier on skin and sinuses.
- You are moving to a noticeably warmer climate (14.4Β°F higher annual average). Keep summer clothing accessible and consider donating or storing heavy winter gear.
- Wildfire season in California typically peaks July through October β register for county emergency alerts during unpack.
- 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 California after establishing residency.
Frequently asked
Is Ontario more expensive than Thornton?
Based on BEA Regional Price Parities (2024), overall price level in Ontario is 0.6% higher than Thornton (106.442 vs 105.782, U.S. average = 100). Rent and services typically carry most of this gap.
How does household income compare in Thornton vs Ontario?
Median household income on the Census ACS 5-year (2023) is $82,806 in Ontario vs $100,985 in Thornton β a 18.0% lower figure. Compare this against the cost-of-living gap above when budgeting.
How much do homes cost in Ontario compared to Thornton?
Zillow ZHVI (2026-03) puts the typical home value at $672,742 in Ontario vs $502,945 in Thornton β a 33.8% higher figure. Data provided by Zillow Research.
How does the job market in Ontario compare to Thornton?
BLS Occupational Employment and Wage Statistics show median wages of $47,450 in the Ontario MSA vs $58,490 in the Thornton MSA, on total employment of 1,661,860 and 1,590,330 respectively. Top occupations on the destination side appear in the Jobs & wages section above.
When is the best time to move from Thornton to Ontario?
Moving companies usually charge 20β30% less between October and April (off-peak). Memorial Day through Labor Day is peak pricing. For a 992 mi drive, weather on the route matters too β see the timing section above for state-specific winter warnings.
How far is Ontario, CA from Thornton, CO?
The driving distance is 992 mi and the route typically takes 17h 25m via I 70 and I 15. The trip crosses 5 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 Thornton.
City profiles: Thornton, CO Β· Ontario, CA.