Rapid City vs San Diego
The short version
- Rapid City is cheaper overall: prices in its metro run 20% lower than in the San Diego area (BEA 2024).
- The median home costs $299,400 in Rapid City and $906,700 in San Diego.
- Households earn more in San Diego ($108,077 vs $70,870 median).
- San Diego has the warmer winter: January highs of 66°F vs 36°F.
- Rapid City gets far more snow: 49 inches a year vs 0.
- Rapid City has more scorching days: 32 a year at 90°F or hotter vs 4.
- Rapid City is growing faster: +7.8% since 2020 vs +1.6%.
- Commutes are shorter in Rapid City (18 vs 24 minutes each way).
- South Dakota has no state income tax on wages; California's top rate is 13.3%.
Side by side
| Rapid City, SD | San Diego, CA | |
|---|---|---|
| People | ||
| Population (2025) | 80,589 | 1,406,106 |
| Growth since 2020 | +7.8% | +1.6% |
| People per square mile | 1,440 | 4,312 |
| Median age | 39.1 | 36.2 |
| Bachelor's degree or higher | 37% | 51% |
| Money and housing | ||
| Median household income | $70,870 | $108,077 |
| Median home value | $299,400 | $906,700 |
| Home value to income | 4.2× | 8.4× |
| Median rent (with utilities) | $1,109 | $2,313 |
| Metro price level (US = 100) | 89.2 | 111.9 |
| Housing price level (US = 100) | 72.6 | 179.3 |
| $75,000 elsewhere equals | $66,900 | $83,900 |
| Homeowners | 63% | 47% |
| Top state income tax | None | 13.3% |
| Combined sales tax | 6.11% | 9.03% |
| Work and commute | ||
| Average commute (minutes) | 17.5 | 23.5 |
| Work from home | 10% | 21% |
| Take public transit | 0% | 3% |
| Unemployment (2020-24 avg) | 2.6% | 6% |
| Poverty rate | 12.5% | 11% |
| Weather | ||
| January high / low | 36° / 13° | 66° / 49° |
| July high / low | 86° / 59° | 74° / 65° |
| Precipitation per year | 17 in | 9 in |
| Snowfall per year | 49 in | 0 in |
| Days 90°F or hotter | 32 | 4 |
| Nights below freezing | 174 | 0 |
| Comfortable months | 3 | 12 |
| Risks, air and home prices | ||
| Natural hazard risk (FEMA, county) | Relatively Low | Very High |
| FEMA risk score (lower is safer) | 78.6 | 99.7 |
| Good air days, 2025 | 62% | 18% |
| Home prices, past year | +1.8% | +2.5% |
| Home prices, past 5 years | +45.1% | +40.8% |
Highlighted cells are the better value where "better" is clear (lower prices, higher income, shorter commutes). Sources: Census Bureau 2025 estimates and ACS 2020-2024, BEA 2024, NOAA 1991-2020, Tax Foundation 2026.
Weather, month by month
Most comfortable months: Rapid City: June and August to September. San Diego: January to December.
Full monthly tables: Rapid City weather by month and San Diego weather by month.
What $75,000 is worth
A $75,000 salary in an average-priced US city buys about the same as $66,900 in Rapid City and $83,900 in San Diego. Moving from Rapid City to San Diego, you would need about $94,100 to match a $75,000 salary.
Moving between Rapid City and San Diego
IRS county-to-county migration, 2022 to 2023 tax years, for the counties that contain each city. See where else people move from Rapid City and San Diego.
Which would you pick?
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