Sumter County, SC Demographics
Sumter County, SC is the 15th most populous of 46 counties in South Carolina, with 105,556 residents across 665 square miles. That is about 159 people per square mile.
At the 2020 census
| Population | 105,556 |
|---|---|
| Land area | 665 sq mi |
| Density | 159 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Sumter County compares to the US
We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: Sumter County, SC
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Sumter County, SC — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Sumter County, SC
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 17.01 | 7,363 | 7.1 | 1,036 |
| Census Tract 2.02 | 6,858 | 27.5 | 250 |
| Census Tract 4.01 | 5,856 | 34.6 | 169 |
| Census Tract 17.04 | 5,708 | 4.5 | 1,259 |
| Census Tract 17.03 | 5,379 | 5.0 | 1,067 |
| Census Tract 19.02 | 5,305 | 25.4 | 209 |
| Census Tract 18.03 | 4,824 | 5.8 | 839 |
| Census Tract 9.02 | 4,607 | 2.2 | 2,127 |
| Census Tract 19.03 | 4,294 | 18.6 | 230 |
| Census Tract 9.01 | 4,236 | 3.0 | 1,412 |
| Census Tract 2.01 | 4,220 | 39.7 | 106 |
| Census Tract 7 | 4,118 | 9.4 | 436 |
| Census Tract 20 | 4,034 | 1.6 | 2,483 |
| Census Tract 18.01 | 3,851 | 119.3 | 32 |
| Census Tract 8 | 3,808 | 2.5 | 1,535 |
| Census Tract 11 | 3,753 | 9.8 | 382 |
| Census Tract 3 | 3,744 | 7.3 | 510 |
| Census Tract 18.04 | 3,562 | 45.7 | 78 |
| Census Tract 6 | 3,542 | 65.9 | 54 |
| Census Tract 16 | 3,303 | 3.4 | 963 |
| Census Tract 1 | 2,888 | 50.1 | 58 |
| Census Tract 4.02 | 2,474 | 57.1 | 43 |
| Census Tract 19.04 | 2,458 | 24.2 | 101 |
| Census Tract 5 | 1,993 | 92.7 | 22 |
| Census Tract 13 | 1,782 | 1.2 | 1,431 |
| Census Tract 15 | 1,596 | 1.3 | 1,198 |
Related places
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Metro areas containing Sumter County
About this page
This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.
Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.