ZIP Code 29403 — Charleston city, SC Demographics & Data

ZIP code 29403 covers Charleston, SC in Charleston County with a population of about 22,319.

At a glance, the area shows median age of 31.0 versus a U.S. median of about 38.9.

It sits in telephone area codes 843, 854; U.S. House district SC-6; the CHARLESTON, SC media market.

Charleston, SC sits in a university / college context (near american college of the building arts (0.2 mi)). Expect stronger interest in student housing, rentals, walkability, transit, and a younger adult age mix versus typical suburban ZIPs.

Median household income in ZIP 29403 is about $65,689 — about 13% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 25.3%; unemployment rate near 4.8%; 56.8% of adults with a bachelor’s degree or higher (about 23.0 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Food services, Healthcare, and Professional services; about 18.5% of workers reporting work-from-home (about 3.3 points above the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $624,000 — about 79% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,506 (about 29% above the U.S. median rent ($1,163)), and owner-occupancy near 35.1% (about 30.3 points below the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 29403 in Charleston, SC, a household would need roughly $172,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $4,008. That is about 162% above the local median household income ($65,689), so the median earner would likely stretch or need a larger down payment. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

FEMA’s National Risk Index rates natural-hazard risk for Charleston city, SC as Relatively High (composite score 98.6), which is among the highest nationally. The strongest component scores on US5 are hurricane (99.6) and wildfire (93.9). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Charleston city, SC show little to no average snow and around 44.3 inches of annual precipitation.

IRS migration statistics show a net inflow of about 892 for ZIP 29403 (Charleston city, SC) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.