😐A single person spends $3,906 per month in San Diego, CA vs $3,416 in Boulder, CO, rent included.
😐A couple spends around $5,746 per month in San Diego, CA vs $4,710 in Boulder, CO, rent included.
😐A family of three spends $7,587 per month in San Diego, CA vs $6,003 in Boulder, CO, rent included.
😐San Diego, CA costs about 14% more than Boulder, CO, driven mainly by Getting Around.
📊Both San Diego, CA and Boulder, CO sit above the global median – San Diego, CA by 191%, Boulder, CO by 155%.
Currency
🍽 Eating Out
San Diego, CA
Boulder, CO
Difference
Meal at Budget Restaurant
$23.14$23.14
$19.76$19.76
17.11%
Three-Course Dinner for Two, Mid-Range
$101$101
$69.3$69.3
45.44%
Fast Food Meal(McDonalds, etc)
$14.74$14.74
$10.91$10.91
35.11%
Cappuccino
$6.04$6.04
$5.84$5.84
3.42%
Coke/Pepsi/Fanta/Sprite(0.33 liter bottle)
$3.03$3.03
$3.28$3.28
-7.62%
Water(0.33 liter bottle)
$2.51$2.51
$2.31$2.31
8.66%
Local Beer(0.5 liter draught)
$7.83$7.83
$6.29$6.29
24.48%
Imported Beer(0.33 liter bottle)
$8.76$8.76
$6.83$6.83
28.26%
🛒 Groceries & Markets
San Diego, CA
Boulder, CO
Difference
Milk(1 liter)
$1.25$1.25
$1.03$1.03
21.36%
White Bread(500g)
$4.50$4.50
$3.55$3.55
26.76%
Rice(white)(1kg)
$4.44$4.44
$4.35$4.35
2.07%
Eggs
$5.26$5.26
$5.54$5.54
-5.05%
Local Cheese(1kg)
$13.57$13.57
$13.47$13.47
0.74%
Chicken Fillets(1kg)
$12.53$12.53
$15.01$15.01
-16.52%
Beef Round Steak(1kg)
$18.69$18.69
$17.09$17.09
9.36%
Apples(1kg)
$4.79$4.79
$4.56$4.56
5.04%
Banana(1kg)
$1.65$1.65
$1.50$1.50
10.00%
Oranges(1kg)
$3.91$3.91
$3.65$3.65
7.12%
Tomato(1kg)
$4.77$4.77
$4.68$4.68
1.92%
Potato(1kg)
$2.95$2.95
$2.58$2.58
14.34%
Onion(1kg)
$2.47$2.47
$2.73$2.73
-9.52%
Lettuce(1 head)
$2.27$2.27
$2.31$2.31
-1.73%
Water(1.5 liter bottle)
$2.45$2.45
$2.31$2.31
6.06%
Cigarettes 20 Pack(Marlboro, Camel)
$11.88$11.88
$9.86$9.86
20.49%
Wine(Bottle)
$14.86$14.86
$16.67$16.67
-10.86%
Local Beer(0.5 liter bottle)
$1.74$1.74
$1.92$1.92
-9.37%
Imported Beer(0.33 liter bottle)
$2.53$2.53
$3.79$3.79
-33.25%
🚌 Getting Around
San Diego, CA
Boulder, CO
Difference
One-way Ticket(Public Transport)
$2.52$2.52
$2.69$2.69
-6.32%
Public Transport Monthly Pass(Regular Price)
$72.5$72.5
$147$147
-50.84%
Taxi Start(Normal Tariff)
$2.98$2.98
$2.53$2.53
17.79%
Taxi(Normal Tariff)(1km)
$2.07$2.07
$1.42$1.42
45.77%
Taxi 1hour Waiting(Normal Tariff)
$28.14$28.14
$23.72$23.72
18.63%
Gasoline(1 liter)
$1.30$1.30
$0.86$0.86
51.16%
Midsize Hatchback 1.4l(Volkswagen Golf, Toyota Prius, Honda Civic, etc)
$31.1K$31.1K
$27.3K$27.3K
14.00%
Compact Sedan 1.6l(Toyota Corolla, Mazda3, Kia K4, Hyundai Elantra, etc)
$26.7K$26.7K
$26.0K$26.0K
3.01%
🧾 Monthly Utilities & Internet
San Diego, CA
Boulder, CO
Difference
Utilities for 2 People in 2-bedroom Apartment(Heating, Electricity, Gas, Water, Garbage)(85m2)
$272$272
$195$195
39.20%
SIM Card Monthly Plan(Calls and 10GB+ Data)
$67.6$67.6
$60.9$60.9
11.03%
Internet(50+ Mbps, Unlimited Data)
$78.2$78.2
$70.2$70.2
11.39%
🎉 Sport & Entertainment
San Diego, CA
Boulder, CO
Difference
Gym Membership(Monthly)
$66.9$66.9
$79.8$79.8
-16.18%
Tennis Court(1 Hour on Weekend)
$24.81$24.81
$19.67$19.67
26.13%
Cinema Ticket
$16.20$16.20
$16.41$16.41
-1.28%
🧸 Childcare & Education
San Diego, CA
Boulder, CO
Difference
Preschool or Kindergarten, Full Day, Private, 1 Child(Monthly)
$1,596$1,596
$1,427$1,427
11.83%
International Primary School, 1 Child(Yearly)
$28.3K$28.3K
$31.0K$31.0K
-8.71%
👕👟 Clothing & Footwear
San Diego, CA
Boulder, CO
Difference
Jeans(Levis 501 Or Similar)
$59.8$59.8
$72.4$72.4
-17.35%
Summer Dress(H&M, Zara, etc)
$58.9$58.9
$37.26$37.26
58.16%
Sport Shoes(Adidas, Nike)
$98.5$98.5
$89.0$89.0
10.70%
Men's Leather Business Shoes
$116$116
$99.2$99.2
17.39%
🏠 Accommodation & Living
San Diego, CA
Boulder, CO
Difference
1-bedroom Apartment, City Center(Monthly)
$2,832$2,832
$2,183$2,183
29.75%
1-bedroom Apartment, Outside City Center(Monthly)
$2,390$2,390
$1,889$1,889
26.53%
3-bedroom Apartment, City Center(Monthly)
$4,901$4,901
$3,984$3,984
23.01%
3-bedroom Apartment, Outside City Center(Monthly)
$4,183$4,183
$2,828$2,828
47.93%
Buy Apartment in City Center(m2)
$8,232$8,232
$4,368$4,368
88.48%
Buy Apartment Outside City Center(m2)
$6,581$6,581
$4,414$4,414
49.08%
💵 Salaries & Financials
San Diego, CA
Boulder, CO
Difference
Average Monthly Net Salary(After Tax)
$5,342$5,342
$5,405$5,405
-1.16%
20-Year Fixed Mortgage Interest Rate(Annual %)
6.39
6.42
-0.47%
CityCost data is based on AI and user input – minor inaccuracies may occur.
Last update for San Diego, CA: May 30, 2026
Last update for Boulder, CO: June 1, 2026
Cost Breakdown
🏠A central one-bedroom costs $2,832 in San Diego, CA versus $2,183 in Boulder, CO. Rent is usually the largest line item in a monthly budget, so the gap here sets the tone for the overall comparison.
💰Salaries run about 1% higher in Boulder, CO, which reinforces the cost advantage – you earn more and spend less. Purchasing power leans clearly in its favor.
🛒A mid-range dinner for two costs $101 in San Diego, CA versus $69.0 in Boulder, CO. Monthly groceries follow the same trend: $425 vs $423 – making Boulder, CO the more affordable choice for daily food spending.
City Median Internet Speeds Comparison (Updated April 2026)
The chart highlights the Precision Threshold for mobile and fixed broadband internet speeds, updated quarterly.
Digital Nomad Cost of Living Index
San Diego, CA vs Boulder, CO: Cost of Living - Frequently Asked Questions
Is Boulder, CO cheaper than San Diego, CA?
Yes – San Diego, CA is pricier by about 14%, and the gap shows up most in Getting Around. It's not just housing either; the difference applies across most spending categories.
What income do you need for each city?
For a comfortable life, plan on about $5,859 per month in San Diego, CA and $5,124 in Boulder, CO. That covers rent, food, utilities, transport, and enough left over to feel settled – not just surviving.
Which city has lower housing costs?
Rent is clearly cheaper in Boulder, CO, especially for central apartments. Housing is actually the single biggest factor behind the overall cost gap between these two cities.
How do food prices compare in San Diego, CA and Boulder, CO?
Groceries cost about 1% more in San Diego, CA, though it depends on what you buy. Local produce may be comparable; imported and premium items show the biggest price gap.
Is eating out cheaper in San Diego, CA or Boulder, CO?
A mid-range dinner for two costs $101 in San Diego, CA and $69.0 in Boulder, CO. That's a good indicator of the overall restaurant and café pricing gap between the two cities.
Is $2,500 enough to cover costs in San Diego, CA or Boulder, CO?
$2,500 is a stretch for both – monthly costs hit $3,906 in San Diego, CA and $3,416 in Boulder, CO. You'll need shared housing and careful budgeting no matter which city you pick.
Is San Diego, CA or Boulder, CO more family-friendly?
Families tend to lean toward Boulder, CO – lower housing and cheaper childcare make a real difference, especially on a single income or when paying for private education.
Which city is safer, San Diego, CA or Boulder, CO?
Both have safer and rougher neighborhoods, but overall safety is comparable to other large cities. Neighborhood choice matters more than the city-level comparison – central, well-trafficked areas feel secure in both.
Which city is the better choice to relocate to?
If budget matters most, go with Boulder, CO. If higher salaries, better infrastructure, or specific career opportunities are the priority, San Diego, CA makes more sense. Both are solid long-term options with distinct trade-offs.
San Diego, CA vs other spots: cost of living compared