Summerville, South Carolina Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Summerville, SC Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around average
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C
Income Below average
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C
Education Below average
Source: Map AI Methodology
Population
| Metric | Summerville | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Population | 42,751 | 5,295,781 | 337,468,954 |
| Population density (per sq mi) | 1880.5 | 165.5 | 86.4 |
| Population growth (%/yr) | 0.39% | 1.16% | 0.59% |
| Median age | 36.1 | 40.4 | 37.3 |
| Households | 16,965 | 2,118,015 | 130,235,071 |
Population in Summerville grew by 9.7% from 2009 to 2024, reaching 42,751 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Summerville is Millennials, aged 29–44, at 22.4% of residents. That is 1.4 points above South Carolina as a whole.
- Gen Z 13–28 9,039 21.1% on par
- Millennials 29–44 9,587 22.4% +1.4 pts
- Gen X 45–60 8,230 19.3% -0.9 pts
- Boomers 61–79 7,121 16.7% -1.8 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below South Carolina, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 51.0% of the people living in Summerville and men 49.0%.
- Women 51.0% South Carolina 51.2%
- Men 49.0% South Carolina 48.8%
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Economy
Summerville has a the economy index of C, which means it is somewhat prosperous.
| Metric | Summerville | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Median household income | $75,470 | $69,383 | $80,455 |
| Income growth (%/yr) | 4.26% | 5.01% | 4.80% |
| Unemployment rate | 5.7% | 4.8% | 5.2% |
The median household income in Summerville is about 9% higher than in South Carolina.
Housing
| Metric | Summerville | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Median home price | $81,158 | $239,609 | $248,835 |
| Median rent | $1,386 | $1,179 | $1,407 |
| Homeownership rate | 70.6% | 71.9% | 65.2% |
The median home price in Summerville is about 4.9 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,386 per month for that long.
Commute Time & Mobility
Commuters in Summerville spend about 56 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 232 hours, about 9.7 full days, spent commuting.
| Metric | Summerville | South Carolina Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 27.9 | 22.3 | 22.4 |
| Round-trip commute (min) | 55.8 | 44.5 | 44.8 |
| Yearly time spent (hours) | 232 | 186 | 187 |
| Estimated yearly cost | $7,203 | $5,753 | $5,790 |
| Work from home | 11.0% | 11.5% | 15.0% |
| Highway traffic (vehicles/day) | 13,683 | 9,507 | 8,813 |
| Local road traffic (vehicles/day) | 3,692 | 1,499 | 1,355 |
The average commute time in Summerville is 28 minutes, longer than the 22 minutes in South Carolina.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Summerville has a education index of C, which means it is somewhat educated.
| Metric | Summerville | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 27.1% | 28.2% | 31.6% |
| Average household size | 2.49 | 2.44 | 2.53 |
Health
Summerville has a health index of B, which means it is quite healthy.
| Metric | Summerville | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 77.9 | 75.8 | 78.3 |
| Self-rated poor health | 14.1% | 19.6% | 16.3% |
| Smokers | 17.8% | 21.5% | 19.0% |
Summerville, SC Compared With Nearby Cities
How Summerville, SC compares with the 1 cities closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Summerville, SC | 42,751 | $75,470 #1/2 | $81,158 #2/2 | 27.9 min #2/2 |
| North Charleston, SC | 123,884 | $64,619 | $282,140 | 22.5 min |
Frequently Asked Questions
Common questions about Summerville, South Carolina.
What is the population of Summerville, South Carolina?
About 42,751 people live in Summerville, South Carolina, in 16,965 households of 2.5 people on average. The median age is 36.1, close to the U.S. median of 37.3.
Is Summerville, South Carolina mostly urban or rural?
Averaged over its land area, Summerville, South Carolina has 1,881 people per square mile, a density typical of urban and suburban areas. That is about 22 times the U.S. average of 86.
Can a typical household afford a home in Summerville, South Carolina?
The median home costs 1.1 times the median household income ($81,158 against $75,470), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,386 a month takes about 22% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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