Overall
- Champaign-Urbana
- 92.7
Diff -19.2 RPP
Cost of living comparison based on BEA Regional Price Parities. Champaign-Urbana is 17.1% less expensive than San Diego-Chula Vista-Carlsbad.
Champaign-Urbana, IL is 17.1% less expensive than San Diego-Chula Vista-Carlsbad, CA on BEA Regional Price Parities (overall RPP 92.7 vs 111.9). A $100,000 salary in San Diego-Chula Vista-Carlsbad buys about the same as $82,855 in Champaign-Urbana; the largest component gap is rents.
RPP parity plate
Pair CA:IL 111.9→92.7
TIER-GAP · CROSS-STATE · RENT-LED · BENCH-CROSS · PP-STEEP
Instrument codes from this pair's BEA Regional Price Parities (overall · goods · services · rents · national benchmark 100 · purchasing-power conversion), not a ranking or recommendation.
What a salary in San Diego-Chula Vista-Carlsbad would need to be in Champaign-Urbana for the same purchasing power:
| In San Diego-Chula Vista-Carlsbad | In Champaign-Urbana | Difference |
|---|---|---|
| $50,000 | $41,428 | $-8,572 |
| $75,000 | $62,141 | $-12,859 |
| $100,000 | $82,855 | $-17,145 |
| $150,000 | $124,283 | $-25,717 |
Same BEA Regional Price Parity ratio as the table above (111.9 → 92.7), computed live from your number, nothing is sent anywhere.
San Diego-Chula Vista-Carlsbad, CA and Champaign-Urbana, IL sit in clearly different price tiers, separated by 19.2 RPP points. At this distance, treating the same nominal salary as equivalent would materially change purchasing power.
This route crosses the national benchmark: San Diego-Chula Vista-Carlsbad is above 100 while Champaign-Urbana is below it. That makes the move a change of price regime, not merely a rank swap.
Rents leads the difference, with Champaign-Urbana 107.7 points lower than San Diego-Chula Vista-Carlsbad. Goods, services, and rents all point in the same broad direction, making the headline comparison more transferable across household types.
Comparable population context is incomplete for this pair, so no market-scale explanation is inferred from the price indexes.
For a housing-sensitive move, validate the rent gap first: HUD Fair Market Rent and the actual unit size can overturn what the blended index implies. On the BEA ratio alone, $100,000 in San Diego-Chula Vista-Carlsbad corresponds to $82,855 in Champaign-Urbana.
Diff -19.2 RPP
Diff -14.3 RPP
Diff -83.8 RPP
Diff -107.7 RPP
| Category | San Diego-Chula Vista-Carlsbad | Champaign-Urbana | Difference |
|---|---|---|---|
| Overall | 111.9 | 92.7 | -19.2 |
| Goods | 108.0 | 93.6 | -14.3 |
| Services | 174.2 | 90.5 | -83.8 |
| Rents | 179.3 | 71.6 | -107.7 |
Vertical line = national average (100)
San Diego-Chula Vista-Carlsbad and Champaign-Urbana share 17 published annual releases from 2008 through 2024. Their overall gap widened, moving from 17.6 to 19.2 RPP points. San Diego-Chula Vista-Carlsbad remained the higher-index metro in the latest release.
Services changed the most within this pair: its gap moved 56.7 points between the first and latest shared releases (27.1 to 83.8 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | San Diego-Chula Vista-Carlsbad RPP | Champaign-Urbana RPP | Relative Gap |
|---|---|---|---|
| 2008 | 113.7 | 96.2 | 17.6 points San Diego-Chula Vista-Carlsbad higher |
| 2012 | 112.9 | 94.2 | 18.7 points San Diego-Chula Vista-Carlsbad higher |
| 2016 | 113.6 | 93.7 | 19.9 points San Diego-Chula Vista-Carlsbad higher |
| 2020 | 115.1 | 91.9 | 23.3 points San Diego-Chula Vista-Carlsbad higher |
| 2024 | 111.9 | 92.7 | 19.2 points San Diego-Chula Vista-Carlsbad higher |
Annual BEA Regional Price Parity releases; a higher index means a higher price level relative to the national average of 100. Selected years shown from the full shared series.
Champaign-Urbana is 17.1% less expensive than San Diego-Chula Vista-Carlsbad. The overall cost index is 92.7 vs 111.9 (national average = 100).
A $100,000 salary in San Diego-Chula Vista-Carlsbad has the same purchasing power as $82,855 in Champaign-Urbana. This is based on the BEA Regional Price Parity indexes.
Rents in San Diego-Chula Vista-Carlsbad are indexed at 179.3 while Champaign-Urbana is at 71.6 (national average = 100). San Diego-Chula Vista-Carlsbad has higher rents.
Every figure on PlainCost is rendered directly from BEA Regional Price Parity source data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, our changelog, or report a data error. Data current as of 2026-08-11. Rankings measure the published cost-of-living index only; we don't recommend where to live or rate any metro's quality of life.