San Diego to Philadelphia on the C2ER ACCRA composite: -21.9% on the headline, -31.4% on housing alone. A $75,000 San Diego salary lines up with roughly $58,562 in Philadelphia after the consumer-price adjustment. State tax stacks on top — sidebar below.
Multiply your San Diego salary by 0.781 (the index ratio 114/146) to get the Philadelphia number that preserves your real-terms spending. The three anchor rows below — $50k, $75k, $150k — are the most common comparison points for relocation offers.
| San Diego salary | Equivalent in Philadelphia | Difference |
|---|---|---|
| $50,000 | $39,041 | -$10,959 |
| $75,000 | $58,562 | -$16,438 |
| $150,000 | $117,123 | -$32,877 |
The breakdown below decomposes the San Diego-vs-Philadelphia cost-of-living gap into its five constituent sub-indexes. National average for each is 100; the delta column shows how each line item changes between the two metros. Housing routinely shows the largest swing.
| Category | San Diego | Philadelphia | Delta |
|---|---|---|---|
| Housing Rent + median home price | 185 | 127 | -31.4% |
| Groceries Supermarket basket | 107 | 102 | -4.7% |
| Transportation Fuel, transit, parking | 127 | 105 | -17.3% |
| Healthcare Doctor visits, prescriptions | 102 | 105 | +2.9% |
| Utilities Electric, gas, internet | 113 | 113 | +0.0% |
| Composite | 146 | 114 | -21.9% |
Moving from San Diego, CA to Philadelphia, PA is, on the headline number, a clear cost-of-living downshift: Philadelphia runs roughly 22% cheaper than San Diego on the composite index. The biggest driver is housing, where Philadelphia sits about 31% below San Diego on the C2ER ACCRA housing sub-index. A $75,000 salary in San Diego maps to roughly $58,562 of equivalent purchasing power in Philadelphia, which is the relevant number when you negotiate a relocation offer or evaluate a job posting from a Philadelphia-based employer.
The temptation is to read "cheaper" and assume the move is automatically a win, but the real comparison happens at the line-item level. Housing is the swing factor, and if your current San Diego budget is heavily weighted toward rent or mortgage — say 35% or more of gross — you capture most of the savings. If you live below your housing means in San Diego already, the move buys less than the index suggests. Run your actual rent, your actual grocery basket, and your actual commute through the comparison rather than trusting a single composite number.
State income tax is not part of the cost-of-living composite, but it is part of your real take-home math. California's effective top rate is 9.30%; Pennsylvania's is 3.07%. On a $75,000 salary the two states pull $6,975 and $2,303 respectively — a gap of $4,673 that compounds with the consumer-price difference.
Plug your real numbers into the take-home pay calculator to see the after-tax difference at your filing status and salary. Federal withholding is constant; the state side is what changes when you cross state lines. See the take-home pay calculator or the state-by-state take-home pay article for the precise after-tax number.
No. The composite index for Philadelphia, PA is 114; San Diego, CA sits at 146. Philadelphia runs roughly 22% below San Diego, with the housing sub-index driving most of the difference and grocery, transport, and utility prices following the same direction at smaller scale.
Roughly $58,562 per year in Philadelphia matches what $75,000 buys in San Diego, based on the C2ER ACCRA composite ratio of 0.78. The result is pre-tax — add the state-tax delta from the sidebar for the full after-tax comparison.
The housing sub-index does the heavy lifting here: 185 in San Diego versus 127 in Philadelphia. Groceries, transport, healthcare, and utilities all show smaller deltas (groceries 107/102; transport 127/105; utilities 113/113). When two metros disagree on cost of living, housing is almost always the reason.
No — the composite cost-of-living index focuses on consumer prices and does not include state income tax. The state-tax sidebar on this page handles that adjustment separately. California's flat or top-marginal state rate is layered against Pennsylvania's, and the gap can be several thousand dollars per year at a typical salary level. Stack the consumer-price equivalence with the state-tax delta for the full after-tax picture.