Charleston vs Rapid City for Retirees (2026)
Scroll down for retirement income tax breakdown, healthcare estimates, and FAQ.
Full retirement cost breakdown
| Metric | Charleston South Carolina | Rapid City South Dakota |
|---|---|---|
| 1BR rent / month | $1,900 | $1,200Better |
| Median home price | $430K | $285KBetter |
| State income tax | 6.2% | NoneBetter |
| Sales tax (combined) | 7.5% | 6.4%Better |
| Monthly utilities | $162 | $148Better |
| Groceries index (US = 100) | 99 | 96Better |
| Est. healthcare / month | $485 | $440Better |
| Walk score (0–100) | 48 / 100Better | 22 / 100 |
| Overall COL index (100 = US avg) | 97 | 88Better |
Frequently asked questions
Which city is better for retirement — Charleston or Rapid City?
Based on home prices, taxes on retirement income, walkability, and overall cost of living, Rapid City scores better for retirees. Median home prices are $430K in Charleston vs $285K in Rapid City. Rapid City is approximately 9% cheaper overall. The best choice still depends on climate, healthcare access, and proximity to family.
Is retirement income taxed in Charleston or Rapid City?
South Dakota has no state income tax, meaning Social Security, pension, and retirement account withdrawals are not subject to state tax. South Carolina has a 6.2% state income tax rate. For retirees, this difference can save thousands annually.
What is the estimated monthly healthcare cost in Charleston vs Rapid City?
Based on national average retiree healthcare spending (~$500/month) scaled by each city's cost-of-living index, estimated monthly healthcare costs are approximately $485 in Charleston and $440 in Rapid City. That's a difference of ~$45/month, or ~$540/year. Actual costs vary based on your Medicare plan, supplements, and health needs.
Can I afford to retire in Charleston on a $50,000 annual income?
On a $50,000/year ($4,167/month) retirement income in Charleston, rent alone would consume approximately 46% of your budget (1BR rent ~$1,900/mo) and healthcare another ~12%. That leaves roughly 42% (~$1,750/mo) for groceries, transportation, and other expenses. This is tight — a studio apartment or lower-cost neighborhood would help.
Which city is more walkable for retirees?
Charleston has a higher walk score (48 vs 22 out of 100). Walkability is increasingly important for retirees who want to reduce car dependence — a score above 70 means most daily errands can be done on foot. Charleston offers more independence without a car, which also reduces transportation costs.
$50K/year in Charleston has the same purchasing power as $45K/year in Rapid City
Healthcare estimates based on national avg retiree spending (~$500/mo) scaled by COL index · State income tax rates from Tax Foundation · Data: Zillow, BLS, Numbeo · Q1 2026