Charleston wins overall by ~53% (COL index)
Cost of living: San Diego vs Charleston (2026)
A $78,000 salary in San Diego buys roughly what $51,122 does in Charleston (COL-adjusted). Your real trade-offs are taxes, rent, and day-to-day prices — we break them down and personalize below.
Your move simulator
Tell us about your household — we calculate your real annual savings.
Estimated annual swing
−$15,842/yr
Favoring Charleston for this income & household (illustrative).
With the extra $1,320/mo, you could pay down a $15,000 card balance in ~12 months and still keep ~$158/mo for dining out.
Studio rent/mo
1BR rent/mo
2BR rent/mo
Median home price
Groceries index (100 = US avg)
Budget meal (1 person)
Mid-range dinner (2)
Monthly transit pass/mo
Gas price/gal
Car insurance/mo
Monthly utilities bundle/mo
Internet/mo
Median household income/yr
State income tax%
Sales tax (combined)%
Movie ticket
Gym membership/mo
Beer at restaurant
Overall COL index (100 = US avg)
Walk score / 100
| Category | San Diego California | Charleston South Carolina | Who wins | Your impact at $78K · 1br · 1 car |
|---|---|---|---|---|
| 🏠 HousingQ1 2026 | ||||
| Studio rent/mo | $2,100 | $1,500Wins | Charleston wins −$600/mo | $7,200/yr saves in Charleston |
| 1BR rent/mo | $2,600 | $1,900Wins | Charleston wins −$700/mo | $8,400/yr saves in Charleston |
| 2BR rent/mo | $3,500 | $2,500Wins | Charleston wins −$1,000/mo | $12,000/yr saves in Charleston |
| Median home price | $850K | $430KWins | Charleston wins −$420K | — |
| 🛒 Food & GroceriesQ1 2026 | ||||
| Groceries index (100 = US avg) | 109 | 99Better | Charleston wins -10 | — |
| Budget meal (1 person) | $18 | $14Wins | Charleston wins −$4/mo | — |
| Mid-range dinner (2) | $75 | $58Wins | Charleston wins −$17/mo | — |
| 🚌 TransportationQ1 2026 | ||||
| Monthly transit pass/mo | $100 | $55Wins | Charleston wins −$45/mo | $540/yr saves in Charleston |
| Gas price/gal | $4.40 | $3.20Wins | Charleston wins −$1.20 | — |
| Car insurance/mo | $165 | $152Better | Charleston wins −$13/mo | — |
| ⚡ UtilitiesQ1 2026 | ||||
| Monthly utilities bundle/mo | $130Wins | $162 | San Diego wins +$32/mo | $384/yr saves in San Diego |
| Internet/mo | $65 | $63Better | Charleston wins −$2/mo | — |
| 💰 Income & TaxesQ1 2026 | ||||
| Median household income/yr | $88KWins | $68K | San Diego wins −$20K more/yr | — |
| State income tax% | 9.3% | 6.2%Wins | Charleston wins -3.1 pp | $2,418/yr saves in Charleston |
| Sales tax (combined)% | 7.8% | 7.5%Better | Charleston wins -0.3 pp | — |
| 🎬 LeisureQ1 2026 | ||||
| Movie ticket | $17.00 | $15.00Better | Charleston wins −$2.00 | — |
| Gym membership/mo | $55 | $40Wins | Charleston wins −$15/mo | — |
| Beer at restaurant | $8.00 | $6.50Wins | Charleston wins −$1.50 | — |
| 📊 OverviewQ1 2026 | ||||
| Overall COL index (100 = US avg) | 148 | 97Wins | Charleston wins -51 | — |
| Walk score / 100 | 51Better | 48 | San Diego wins -3 more/yr | — |
Complete the Picture
While you’re comparing — don’t leave money on the table.
Tax-smart rewards
Turn ~$2,412/yr tax difference into cash back
Charleston fits your move math — cash-back cards stack on groceries, gas, and dining you're already doing.
Home + auto bundle
New state — new insurance rates
Bundling often saves hundreds/yr. Compare before you sign a lease in Charleston.
High-yield savings
Park ~$8,400/yr rent savings at 4–5%+ APY
Don't let relocation cash sit at 0% — put it to work until closing day.
More ways to compare this move
Ready to move?
Open the full interactive tool to add up to 5 cities, drop in your salary, and see rent burden.
Open full interactive toolComplete the Picture
While you’re comparing — don’t leave money on the table.
If cash is tight
Knock down high-interest debt first
A move has upfront costs — a balance transfer or personal loan can lower APR while you settle in.
If you're saving big
Invest the surplus on autopilot
Brokerages and robo-advisors help you dollar-cost average into the market with your new slack.
Frequently asked questions
Is San Diego cheaper than Charleston?
No. Charleston is 53% cheaper than San Diego based on overall cost of living indices (97 vs 148, where 100 = US average).
What is the average rent in San Diego vs Charleston?
As of Q1 2026, the median 1-bedroom rent in San Diego is $2,600/month and in Charleston is $1,900/month. San Diego is more expensive by 37%.
How much do I need to earn in Charleston to match a $75,000 salary in San Diego?
To maintain a similar lifestyle, you would need approximately $49,155/year in Charleston to match a $75,000 salary in San Diego. This estimate is based on overall cost of living indices and does not account for individual spending patterns.
Which city has lower taxes — San Diego or Charleston?
Charleston has the lower state income tax rate at 6.2% vs 9.3%. The difference is 3.1 percentage points. Note that sales tax and local taxes also vary — see the full breakdown in the table above.
Is it worth moving from San Diego to Charleston?
It depends on your priorities. Charleston offers lower overall costs, but both cities have different job markets, weather, and lifestyle trade-offs. Use the comparison table above to evaluate rent, groceries, transportation, and income potential side by side based on your specific budget.
Data sourced from Zillow, BLS, Numbeo, Tax Foundation, and US Census ACS · Updated Q1 2026 · For general guidance only
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Salary equivalent: San Diego ↔ Charleston
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