Population
105,067
2025
−0.3% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Sumter County, SC growth snapshot
Sumter County had an estimated 105,067 residents in 2025, down 0.3% (342 fewer people) since 2020. That is slower than South Carolina as a whole (+8.5%), and the 125th fastest growth of 146 counties in the Carolinas.
Data as of 2025 · updated
Headline numbers
Net domestic migration
+221
2025
2.1 per 1,000 residents
−744 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
Jobs
35,348
2025
−0.8% since 2020
Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2025. Average annual employment covered by unemployment insurance.
Average weekly wage
$1,048
2025
+29.0% since 2020
Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2025. Average weekly wage, all covered jobs.
Unemployment rate
5.4%
2025
+2.1 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
New homes permitted
358
2025
−7.7% since 2021
3.4 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
Median household income
$56,693
2020–24
+21.7% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
Private-sector employment
29,449
2023
−8.1% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
What the numbers say
Net domestic migration added 221 people in 2025: more people moved in from other U.S. counties than moved out.
Employers counted 35,348 jobs in 2025, −0.8% since 2020 (121st of 146 Carolinas counties for job growth); the average weekly wage was $1,048.
Unemployment averaged 5.4% in 2025, 2.1 points higher than in 2019 (before the pandemic).
Builders were authorized to start 358 new homes in 2025, or 3.4 per 1,000 residents.
Median household income was $56,693 in the 2020–24 American Community Survey, +21.7% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 1,984th.
Part of the Sumter, SC metro area.
Sumter County population by year
| Year | Population | Change |
|---|---|---|
| 2025 | 105,067 | +279 |
| 2024 | 104,788 | +392 |
| 2023 | 104,396 | +506 |
| 2022 | 103,890 | −813 |
| 2021 | 104,703 | −706 |
| 2020 | 105,409 | – |
Census Bureau population estimates, July 1 of each year.
What drove the change in Sumter County
Sumter County lost 342 people since 2020; the biggest drag was domestic migration (−744).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | +9 | −135 | |
| International migrationfrom and to other countries | +35 | +505 | |
| Domestic migrationfrom and to other U.S. counties | +221 | −744 | |
| Census adjustmentbalancing residual | +14 | +32 | |
| Total change | +279 | −342 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
How it ranks
| Measure | In South Carolina | Among U.S. counties |
|---|---|---|
| Population growth | 35th of 46 | 1,984th of 3,107 |
| Net domestic migration per 1,000 residents | 35th of 46 | 1,537th of 3,108 |
| Private-sector job growth | 38th of 46 | 2,711th of 3,092 |
| Median household income | 24th of 46 | 2,335th of 3,107 |
| Average weekly wage | 23rd of 46 | – |
| Lowest unemployment rate | 32nd of 46 | 2,726th of 3,108 |
| New homes permitted per 1,000 residents | 31st of 46 | 990th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
Get the full county report — $99
The quarterly County Growth Report for Sumter County, SC as a PDF: growth, jobs, wages, permits, announcements, sales where allowed, ranks against peer counties and a methods page. Pay once, no subscription.
See a sample report (PDF) · Other counties and options
Every purchase also includes a CSV of every table in the report, ready for a spreadsheet.
- Not useful? Email us within 14 days for a full refund
- Sold by Simply Stats LLC (NC)
- Secure Stripe checkout (Apple Pay/Google Pay)
- Instant PDF download
- PDF + CSV of every table
Refund terms: Terms. · How we compute every number
Neighbouring counties
Over 2020–25, Sumter County's population change (−0.3%) was ahead of 1 of its 6 neighbouring counties and behind 5.
4 of its 6 neighbouring counties had a higher median household income than Sumter County's $56,693 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Sumter County, SC This county | 105,067 | −0.3% | 2.1 | 3.4 | $56,693 |
| Clarendon County, SC | 31,043 | +0.7% | 4.8 | 3.7 | $52,401 |
| Lee County, SC | 15,730 | −5.0% | −5.7 | 1.4 | $44,760 |
| Kershaw County, SC | 73,166 | +11.6% | 17.7 | 7.0 | $68,231 |
| Calhoun County, SC | 14,188 | +0.5% | 8.6 | 2.7 | $58,682 |
| Richland County, SC | 434,956 | +4.6% | 3.8 | 7.8 | $63,784 |
| Florence County, SC | 138,504 | +1.2% | 1.3 | 5.0 | $58,305 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
All 46 South Carolina counties · All Carolinas counties and metros
Questions
What is the population of Sumter County?
About 105,067 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Is Sumter County growing?
No. Its population fell 0.3% between 2020 and 2025, about 342 fewer people (Census Bureau population estimates). South Carolina as a whole changed +8.5% over the same years. That ranks 125th of 146 Carolinas counties for population growth.
How many people moved to Sumter County?
On net, about 221 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).
How many jobs are in Sumter County?
Employers there reported 35,348 jobs covered by unemployment insurance in 2025, −0.8% since 2020 (BLS Quarterly Census of Employment and Wages). The average weekly wage was $1,048 in 2025.
What is the unemployment rate in Sumter County?
It averaged 5.4% in 2025 (BLS Local Area Unemployment Statistics, annual average).
How many new homes are being built in Sumter County?
Building permits authorized 358 new housing units in 2025, 3.4 per 1,000 residents (Census Bureau Building Permits Survey). Permits count homes authorized, not finished.
What is the median household income in Sumter County?
$56,693 in the 2020–24 American Community Survey 5-year estimates.
How does Sumter County compare with other South Carolina counties?
Among South Carolina counties it ranks 35th of 46 for population growth; 35th of 46 for net domestic migration per 1,000 residents; 38th of 46 for private-sector job growth; 24th of 46 for median household income. Nationally it ranks 1,984th of 3,107 counties for population growth.
See Sumter County tract by tract
Beacon CRE maps growth, permits, workforce, flood risk, opportunity zones, listings and recent sales for every county and census tract in the Carolinas, with grades that explain themselves.
Card required, cancel anytime before the trial ends. Prefer an invoice? Request a pilot.
Get the Carolinas CRE Growth Brief
One email a month: the NC and SC counties gaining people, jobs and new homes fastest, with the numbers behind them. Free. Unsubscribe anytime.
Sources and method
- U.S. Census Bureau, Population Estimates Program (Vintage 2025)
- U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages
- U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics
- U.S. Census Bureau, Building Permits Survey
- U.S. Census Bureau, American Community Survey 5-year estimates
- U.S. Census Bureau, County Business Patterns
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.