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South Carolina›Sumter County
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OswegoSC

A town of 172, settled in 1891.

Population
172
Census survey, 2020–24
Median age
15.2
years
Land area
1 sq mi

Is Oswego a good place to live?

100% of residents live below the poverty line in Oswego, where South Carolina’s towns sit at 17% and U.S. towns at 9.6%. Of the 170 South Carolina towns we compare, none has a lower median age than Oswego. Oswego has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

Small town

172 people, and everyone knows the way

In a town this size, neighbors are the best guide. Ask them anything.

Nearby towns
Mayesville · 5 miSumter · 8 miLynchburg · 13 miBishopville · 15 miLamar · 17 miTurbeville · 17 mi
Getting set up

Moving to Oswego: who provides what

Oswego is unincorporated, so Sumter County and regional agencies provide most services.

PowerBlack River Electric Coop15.1¢/kWh · EIA 2025HIFLD · EIA
Internet3 providers100% of addresses get 100/20 MbpsFCC
Trash & county servicesSumter CountySumter County provides services here
SchoolsSumter County Consolidated School DistrictWhich school depends on your addressNCES
Register to voteOnlineIn South Carolina you can register online until 30 days before Election Day, in person until 30 days before Election Day, or by mail (postmarked 30 days before).vote.gov
Who runs elections hereSumter Board of Voter RegistrationSumter County; contacts on the Handbook page.FVAP, Jun 2025
ZIP code2915329153 100%Census 2020

EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.

The data

Ordered by what stands out in Oswego.

Climate

Mild winters and hot summers in Oswego

Oswego has mild winters and warm summers. At 92°F, Oswego’s July high is near the South Carolina town median (91°F) and above the median of U.S. towns (85°F).

92°summer high

Typical low → high °F

Winter36–59°
Spring50–75°
Summer69–90°
Fall53–76°
Nov 7
typical first frost
Mar 24
typical last frost
+0.7°
vs. the 20th-century average
92°
typical summer high
Full pageOswego’s climate pageOpen the page
A year of weatherJuly highs 92°, January lows 34°Rain & snow47″ of rain a year · Snow is almost unheard ofHeating & coolingBoth heating and coolingThen and now+0.7° vs. the 20th century · Warmer than the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Health

A larger share of adults in Oswego have diabetes than in the typical South Carolina or U.S. town

22% of adults have diabetes in Oswego. No town among the 170 in South Carolina we compare has a higher share of adults who have high blood pressure than Oswego. 20% of adults have been diagnosed with depression in Oswego.

OswegoSouth Carolina townsU.S. towns
Diabetes (CDC PLACES)22%15%12%
Binge drink (CDC PLACES)8.6%15%16%
High blood pressure (CDC PLACES)56%40%35%
Yearly checkup (CDC PLACES)88%80%79%
32 measures vs. South Carolina
10 better11 too close to call11 worse
What stands outOswegoSC
Fewer binge drinkers8.6%15.7%
Fewer adults facing housing insecurity8.4%13.3%
More adults with heart disease15.2%6.8%
Prisma Health Tuomey Hospital
6.6 mi away · emergency room
3 of 3
care shortages: primary care, dental, mental health
Full pageOswego’s health reportOpen the page
Everyday habitsFewer binge drinkersHospitals & doctors nearby6.6 miles to an ER · Prisma Health Tuomey HospitalHow adults are doingMore adults in frequent physical distressEvery CDC estimateBetter than SC on 10 of 32

CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA

Natural hazards

Inland flooding leads a moderate hazard risk in Oswego

Expected storm and flood damage is lower than in 53% of U.S. communities.

47risk score of 100
FEMA risk score
47Moderate riskLowerHigher
Inland floodingHurricanesEarthquakes
Full pageOswego’s hazards pageOpen the page
What it facesModerate riskFlood claims0 paid flood claims · No paid flood claims on recordPast disasters19 disaster declarations · Declared for the countyGet ready0.4 events a year, on average · Ready for inland flooding

FEMA National Risk Index · OpenFEMA

Keep exploring

Everything we know about Oswego

13pages on Oswego
The big questions
HealthBetter than SC on 10 of 32 CDC measuresNatural hazardsFEMA risk higher than 47% of U.S. communities · inland flooding
Out and about
PlacesAttractions11 nearby · Congaree National Park 24 miLibrarySumter County Public LibraryCollegesMorris College is 5.8 mi away
The story
HistorySettled 1891Climate92° summer highs
Day to day
NewsWeatherHandbookTown SquareNeighbors
After high school

Colleges nearby

3 within 15 miles of the center of Oswego

Morris CollegeUniversity or college · Private nonprofit · Sumter5.8 mi$16,664 tuitionCentral Carolina Technical CollegeCommunity college · Public · Sumter7 mi$5,715 in-state tuitionUniversity of South Carolina-SumterCommunity college · Public · Sumter7 mi$7,558 in-state tuition

About 0 of every 100 Oswego residents are enrolled in college, against 6 across South Carolina.

Prices by family income, graduation and earnings →

About Oswego

CDP in South Carolina, United States

Oswego is a census-designated place (CDP) in Sumter County, South Carolina, United States. The population was 95 at the 2000 census. It is included in the Sumter, South Carolina Metropolitan Statistical Area.

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Area
1.2 sq mi
Elevation
154 ft

Questions about Oswego

Short answers, built from the data on this page.

Is Oswego, SC a good place to live?

Oswego has fewer than 1,000 residents, too few for fair grades; the figures below are still real.