Charleston, Columbia or Greenville: how the cost of a first home differs across South Carolina's three largest metros

Why a single statewide answer falls short

SC Housing's programs work the same way across the state: a 30-year fixed first mortgage, $10,000 in forgivable assistance, a 640 credit score and a $450,000 price limit. Yet a teacher in Mount Pleasant and a deputy in Irmo face very different decisions. The differences come from four places: county income limits, local assistance, insurance, and the first-time buyer rule. We will take each in turn.

Income limits side by side

SC Housing's 2026/2027 chart, effective for reservations on or after June 1, 2026, sets household income limits by county:

Two points stand out. First, Columbia's core counties have the lowest limits of the three metros, so a dual-income household there may find itself over the line sooner. Second, Berkeley and Dorchester, which border Charleston, are targeted counties. There, SC Housing only asks that you not own a home at closing, and the income limit is the highest in the state. A family who sold a home within the last three years may still qualify in Summerville or Goose Creek, but not across the county line in Charleston. Check your own figures on the income limits page.

Charleston: higher limits, higher insurance questions

Charleston County's income limit is generous by state standards, but coastal living brings its own costs. Charleston County is on the Department of Insurance's list of counties eligible for the SC Safe Home wind-mitigation grant, a sign of its storm exposure. Many homes need a separate flood policy, and some need wind coverage through the state wind pool. These premiums go into escrow and count against your debt-to-income ratio, which SC Housing caps at 45%. Our coastal insurance guide explains how to price them early.

For local help, the City of Charleston's Homeownership Initiative assists first-time buyers earning 50% to 120% of area median income who buy specific City-sponsored homes, with a long-term affordability covenant. It is tied to particular properties rather than any home on the market. City of Charleston employees and others in the region may also look at employer programs. Beaufort Memorial's program serves its staff further south.

Columbia: the deepest local assistance

The Midlands has the most layered local help of the three metros, though each program has a narrow box:

• City Lender I (inside Columbia city limits): up to $18,500 in forgivable assistance plus a City second mortgage, with a maximum purchase loan of $225,000 and 2026 income limits starting at $51,750 for one person.
• Richland County RCHAP (unincorporated Richland County and Blythewood): up to $24,500, a price cap of $228,000 for existing homes and $273,000 for new construction, a CL-100 termite inspection, and an application before you ratify a contract.
• Lexington County HOME assistance: up to $5,000 for buyers at or below 80% of area median income, with price limits of $233,000 for existing homes and $295,000 for new homes.
• Made It Home!: SC Housing's new-construction program includes participating builders in Columbia, with up to $25,000 in forgivable assistance. It cannot be combined with other SC Housing assistance.

These programs serve lower-income buyers and moderately priced homes. A teacher or nurse whose household falls under their income limits may find Columbia the place where local and state help stretch furthest. Whether a given local program can be paired with SC Housing's $10,000 is a question for your lender. See the Richland County page for details.

Greenville: a strong county program and an employer benefit

In the Upstate, the Greenville County Homebuyer Assistance Program offers up to $20,000 to first-time buyers at or below 80% of area median income, for homes priced up to $425,000. The program serves Greenville County outside the City of Greenville; city addresses are not eligible. It asks for a $500 minimum investment and homebuyer education.

For public servants, the City of Greenville Employer Assisted Homebuyer Program stands out. Full-time City employees with a year of service, including Greenville police officers and firefighters, may receive up to $50,000 at or below 80% of area median income, stepping down to $20,000 at 120% to 150%. Prisma Health runs its own program of up to $5,000 for eligible staff near its campuses. Details are on the Greenville County page.

Property taxes: same rules, different millage

Every county applies the same 4% assessment ratio to an owner-occupied legal residence, compared with 6% otherwise, and removes school operating millage once you qualify. What differs is the millage itself, which each county auditor publishes, and which varies by city and school district within a county. When comparing two homes, ask your agent or the county auditor for the millage at each address, and remember to file your legal residence application after you move in.

A side-by-side summary

Our counsel

Start with the county, not the city name. Look up its income limit and first-time rule, then ask whether a local program fits your income and price range, and finally get insurance quotes before you commit. A short drive across a county line can change your eligibility more than any other single decision.

To compare programs for the counties you are considering, please check your eligibility.

Further questions