Moving from Portland, OR to Thornton, CO
It is 1230 mi between Portland and Thornton — roughly 21h 8m of driving, plus rest stops and overnight, through 5 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.
1230 mi · 21h 8m by car · OR → ID → UT → WY → CO
Distance & route
| Route through | OR → ID → UT → WY → CO |
|---|---|
| Primary highways | I 84, US 30, I 80 |
| Major cities en route | Hillsboro, Vancouver, Gresham, Nampa, Boise City |
Route via OSRM driving profile. Actual time varies with traffic and season.
Cost of living
| Portland | Thornton | U.S. avg | |
|---|---|---|---|
| All items (RPP) | 105.421 | 105.782 | 100.0 |
| Rents | 106.974 | 87.856 | 100.0 |
| Goods | 105.222 | 100.957 | 100.0 |
| Services | 125.114 | 146.919 | 100.0 |
No material COL gap at the headline level — BEA RPP for both cities falls within 5% (2024).
Source: BEA Regional Price Parities (MSA-level · MSA-level); 2024.
Housing prices
Housing comes in 0.3% under Portland — $534,638 → $502,945 on the latest ZHVI.
YoY change: Portland -1.1%, Thornton -3.3%. Snapshot: 2026-03. Data provided by Zillow.
Climate
| 1991–2020 normals | Portland | Thornton |
|---|---|---|
| Annual avg temperature | 55°F | 52°F |
| January avg low | 37°F | 19°F |
| July avg high | 80°F | 91°F |
| Annual snowfall | 3.6" | 44.8" |
| Annual precipitation | 44.1" | 14.5" |
No material annual-average temperature gap; seasonal extremes may still differ.
Heavy-snow city: expect 44.8 in of snowfall annually at Thornton.
Source: NOAA U.S. Climate Normals 1991–2020 (stations: PORTLAND KGW-TV, OR US, NORTHGLENN, CO US).
Demographics
| ACS 5-year 2023 | Portland | Thornton |
|---|---|---|
| Population | 642,715 | 142,878 |
| Median household income | $88,792 | $100,985 |
| Median age | 38.6 | 34.3 |
| Bachelor's degree or higher | 32.1% | 22.3% |
| Avg household size | 2.24 | 2.88 |
Households in Thornton earn about 0.3% more at the median — ACS 5-year 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 Oregon 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 — state tax treatment depends on residency, sourcing, and reciprocity agreements.
Best time to move
Moving companies typically charge 20–30% 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
- Cascade passes on I-84 and OR-58 can require chains or close entirely during winter storms.
- Lookout Pass (I-90) and Galena Summit (SH-75) require winter tires or chains during storms.
- 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.
- I-80 across southern Wyoming frequently closes in winter storms November through April — check WYDOT 511 before departure.
- Mountain passes on I-70 west of Denver and on I-25 near Raton can close for snow November through April — check CDOT alerts before departure.
State DOT 511 phone or web services provide real-time road conditions year-round.
Packing & arrival checklist
- You are moving to a much snowier climate — Thornton averages 44.8 in annually vs 3.6 in at origin. Don't bury the winter gear in a hard-to-reach box.
- Air conditioning matters: July highs in Thornton average 91°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 Portland, OR?
The driving distance is 1230 mi and the route typically takes 21h 8m via I 84 and US 30. The trip crosses 5 state(s). Actual time varies with traffic and season.
What is the climate difference between Portland and Thornton?
On NOAA 1991–2020 normals, annual average temperature is 52.4°F in Thornton vs 54.8°F in Portland (2.4°F colder). Annual snowfall: 44.8 in vs 3.6 in. Annual precipitation: 14.5 in vs 44.1 in.
When is the best time to move from Portland to Thornton?
Moving companies usually charge 20–30% less between October and April (off-peak). Memorial Day through Labor Day is peak pricing. For a 1230 mi drive, weather on the route matters too — see the timing section above for state-specific winter warnings.
How does the job market in Thornton compare to Portland?
BLS Occupational Employment and Wage Statistics show median wages of $58,490 in the Thornton MSA vs $55,940 in the Portland MSA, on total employment of 1,590,330 and 1,206,150 respectively. Top occupations on the destination side appear in the Jobs & wages section above.
Is Thornton more expensive than Portland?
Based on BEA Regional Price Parities (2024), overall price level in Thornton is 0.3% higher than Portland (105.782 vs 105.421, U.S. average = 100). Rent and services typically carry most of this gap.
How does household income compare in Portland vs Thornton?
Median household income on the Census ACS 5-year (2023) is $100,985 in Thornton vs $88,792 in Portland — a 13.7% higher figure. Compare this against the cost-of-living gap above when budgeting.
How much do homes cost in Thornton compared to Portland?
Zillow ZHVI (2026-03) puts the typical home value at $502,945 in Thornton vs $534,638 in Portland — a 5.9% lower figure. Data provided by Zillow Research.
Plan the move
Estimate costs with our moving cost calculator, or see where else to move from Portland.
City profiles: Portland, OR · Thornton, CO.