Moving from Downey, CA to Naperville, IL
It is 1989 mi and 34h 50m from Downey to Naperville β a cross-country move across 8 states. Housing, cost of living, climate, and tax picture all tend to shift substantially at this distance. This page pulls the current figures from each federal source and Zillow Research into one comparison.
1989 mi Β· 34h 50m by car Β· IL β IA β NE β CO β UT β AZ β NV β CA
Distance & route
| Route through | IL β IA β NE β CO β UT β AZ β NV β CA |
|---|---|
| Primary highways | I 70, I 80 EXPRESS, I 15 |
| Major cities en route | Chicago, Joliet, Aurora, Elgin, Cedar Rapids |
Route via OSRM driving profile. Actual time varies with traffic and season.
Cost of living
| Downey | Naperville | U.S. avg | |
|---|---|---|---|
| All items (RPP) | 113.566 | 103.595 | 100.0 |
| Rents | 158.589 | 83.581 | 100.0 |
| Goods | 106.623 | 107.258 | 100.0 |
| Services | 170.433 | 112.01 | 100.0 |
Expect about 8.8% lower overall cost of living β BEA RPP 2024 has Naperville at 103.595 vs Downey at 113.566.
Source: BEA Regional Price Parities (MSA-level Β· MSA-level); 2024.
Housing prices
Expect roughly 8.8% lower home prices β ZHVI goes from $888,710 to $610,454 moving to Naperville.
YoY change: Downey +1.2%, Naperville +5.2%. Snapshot: 2026-03. Data provided by Zillow.
Climate
| 1991β2020 normals | Downey | Naperville |
|---|---|---|
| Annual avg temperature | 65Β°F | 49Β°F |
| January avg low | 47Β°F | 15Β°F |
| July avg high | 81Β°F | 84Β°F |
| Annual snowfall | β | β |
| Annual precipitation | 12.0" | 40.2" |
Expect 15.7Β°F colder on average per year β plan for heating load and winter gear.
Source: NOAA U.S. Climate Normals 1991β2020 (stations: LONG BEACH DAUGHERTY FLD, CA US, LISLE-MORTON ARBORETUM, IL US).
Demographics
| ACS 5-year 2023 | Downey | Naperville |
|---|---|---|
| Population | 111,793 | 149,424 |
| Median household income | $87,400 | $150,937 |
| Median age | 37 | 40.1 |
| Bachelor's degree or higher | 17.8% | 38.8% |
| Avg household size | 3.22 | 2.75 |
Expect median household income to rise 8.8% β $87,400 β $150,937 per ACS 5-year estimates (2023).
Source: U.S. Census Bureau, ACS 5-year 2023.
Jobs & wages
Top occupations in Naperville MSA
| Occupation | Employment | Median wage |
|---|---|---|
| Office and Administrative Support Occupations | 519,810 | $46,540 |
| Transportation and Material Moving Occupations | 497,550 | $41,020 |
| Management Occupations | 405,130 | $125,280 |
| Sales and Related Occupations | 386,070 | $38,490 |
| Food Preparation and Serving Related Occupations | 368,000 | $33,540 |
Source: BLS Occupational Employment and Wage Statistics.
Moving between California and Illinois
State income-tax top marginal rates are from the Tax Foundation, updated annually. Check Illinois'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.
- 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-17 and I-40 through the Flagstaff area can see winter closures; the rest of Arizona is generally clear year-round.
- I-80 east of Reno and US-50 across the Sierra can require chains in winter storms.
- Donner Pass (I-80) and Tejon Pass (I-5 Grapevine) see chain requirements and occasional closures December through March.
State DOT 511 phone or web services provide real-time road conditions year-round.
Packing & arrival checklist
- You are moving to a noticeably colder climate (15.7Β°F lower annual average). Thermal layers, insulated boots, and a heavier winter coat should ride in the car, not the truck.
- 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 Illinois after establishing residency.
Frequently asked
How does household income compare in Downey vs Naperville?
Median household income on the Census ACS 5-year (2023) is $150,937 in Naperville vs $87,400 in Downey β a 72.7% higher figure. Compare this against the cost-of-living gap above when budgeting.
How does the job market in Naperville compare to Downey?
BLS Occupational Employment and Wage Statistics show median wages of $49,790 in the Naperville MSA vs $50,490 in the Downey MSA, on total employment of 4,506,800 and 6,185,570 respectively. Top occupations on the destination side appear in the Jobs & wages section above.
How much do homes cost in Naperville compared to Downey?
Zillow ZHVI (2026-03) puts the typical home value at $610,454 in Naperville vs $888,710 in Downey β a 31.3% lower figure. Data provided by Zillow Research.
When is the best time to move from Downey to Naperville?
Moving companies usually charge 20β30% less between October and April (off-peak). Memorial Day through Labor Day is peak pricing. For a 1989 mi drive, weather on the route matters too β see the timing section above for state-specific winter warnings.
Is Naperville more expensive than Downey?
Based on BEA Regional Price Parities (2024), overall price level in Naperville is 8.8% lower than Downey (103.595 vs 113.566, U.S. average = 100). Rent and services typically carry most of this gap.
How far is Naperville, IL from Downey, CA?
The driving distance is 1989 mi and the route typically takes 34h 50m via I 70 and I 80 EXPRESS. The trip crosses 8 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 Downey.
City profiles: Downey, CA Β· Naperville, IL.