Townapedia
Lancaster County Courthouse (Built 1828), Lancaster, South Carolina
Lancaster County Courthouse (Built 1828), Lancaster, South Carolina · Calvin Beale, Public domain
Perry Mcllwain
Perry Mcllwain · Bill Fitzpatrick, CC BY-SA 3.0
Wade-Beckham House
Wade-Beckham House · Bill Fitzpatrick, CC BY-SA 3.0
Lancaster County (South Carolina) Jail
Lancaster County (South Carolina) Jail · Unknown author, Public domain
Lancaster Presbyterian Church
Lancaster Presbyterian Church · Bill Fitzpatrick, CC BY-SA 3.0
Lancaster County Oil
Lancaster County Oil · Bill Fitzpatrick, CC BY-SA 3.0

Irwin, South Carolina

Irwin is a community of 1,919 people in Lancaster County, South Carolina.

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Population1,919 +37.6% since 2019
Elevation522 ft 159 m
Land area3.0 sq mi
ZIP code29720
Nearest airportAero Plantation Airport (NC21) 21 mi

Why visit Irwin

Townapedia lists 6 museums and landmarks in and around town.

Highlights include Lancaster County Courthouse and Lancaster County Jail.

July is the warmest month, with average highs of 91°F; January lows average 33°F.

About Irwin

Irwin is an unincorporated community and census-designated place (CDP) in Lancaster County, South Carolina, United States. The population was 1,405 at the 2010 census.

From the Wikipedia article Irwin, South Carolina (this version), under CC BY-SA 4.0.

Museums and landmarks6

Lancaster County Courthouse

Monument and historic site · National Register of Historic Places · 3.2 mi

Courthouse in Lancaster, South Carolina, U.S.A.

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Lancaster County Jail

Monument and historic site · National Register of Historic Places · 3.4 mi

Former prison in Lancaster, South Carolina, U.S.A.

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Lancaster Downtown Historic District

Monument and historic site · National Register of Historic Places · 3.4 mi

Historic district in South Carolina, United States

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Perry-McIlwain-McDow House

Monument and historic site · National Register of Historic Places · 3.6 mi

Historic house in South Carolina, United States

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Wade-Beckham House

Monument and historic site · National Register of Historic Places · 2.5 mi

Historic house in South Carolina, United States

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Lancaster Cotton Oil Company

Monument and historic site · National Register of Historic Places · 3.4 mi

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Churches and places of worship6

Lancaster Presbyterian Church

Church · National Register of Historic Places · 3.2 mi

Church building in South Carolina, United States of America

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Nebo Church

Church · 1.8 mi

Nebo Road, Grace

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Grace Church

Church

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Red Hill Church

Church · 1.5 mi

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Wade Memorial Church

Church · 1.7 mi

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White Springs Church

Church · 0.4 mi

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Schools, colleges and libraries11

A. R. Rucker Middle

School · 5.1 mi

422 Old Dixie Road, Lancaster

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Brooklyn Springs Elementary

School · 2.4 mi

1637 Billings Drive, Lancaster

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Clinton Elementary

School · 3.9 mi

110 Clinton School Road, Lancaster

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Discovery Charter of Lancaster

School · 3.2 mi

302 West Dunlap Street, Lancaster

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Erwin Elementary

School · 1.0 mi

1477 Locustwood Avenue, Lancaster

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Lancaster County School District Career Center

School · 3.2 mi

625 Normandy Road, Lancaster

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Lancaster High

School · 3.3 mi

625 Woodland Drive, Lancaster

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Mcdonald Green Elementary

School · 4.3 mi

2763 Lynwood Drive, Lancaster

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North Elementary

School · 3.5 mi

1100 Roddey Drive, Lancaster

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South Middle

School · 2.5 mi

1551 Billings Drive, Lancaster

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Erwin Elementary School

School · 0.6 mi

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Map of Irwin

23 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

40°60°80°January: 3.6 in of rainFebruary: 3.1 in of rainMarch: 3.9 in of rainApril: 3.7 in of rainMay: 3.5 in of rainJune: 4.1 in of rainJuly: 3.6 in of rainAugust: 3.7 in of rainSeptember: 3.6 in of rainOctober: 2.9 in of rainNovember: 3.3 in of rainDecember: 3.6 in of rainJanuary: 54°FFebruary: 58°FMarch: 66°FApril: 75°FMay: 81°FJune: 88°FJuly: 91°FAugust: 89°FSeptember: 84°FOctober: 74°FNovember: 64°FDecember: 56°FJanuary: 33°FFebruary: 35°FMarch: 42°FApril: 50°FMay: 59°FJune: 66°FJuly: 70°FAugust: 69°FSeptember: 63°FOctober: 51°FNovember: 41°FDecember: 35°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRain
Jan54°F33°F3.6 in
Feb58°F35°F3.1 in
Mar66°F42°F3.9 in
Apr75°F50°F3.7 in
May81°F59°F3.5 in
Jun88°F66°F4.1 in
Jul91°F70°F3.6 in
Aug89°F69°F3.7 in
Sep84°F63°F3.6 in
Oct74°F51°F2.9 in
Nov64°F41°F3.3 in
Dec56°F35°F3.6 in

U.S. Climate Normals 1991-2020 for Winthrop Univ Hcn (21 mi away), NOAA NCEI.

People and cost of living

$55,885median household income
$176,900median home value
$818median monthly rent
32.0median age
12.4%of adults have a bachelor's degree or higher
95.7%of homes are owner-occupied
20.2 minaverage commute
Age of residents
Under 1817%18 to 3433%35 to 6436%65 and over14%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Lancaster County has had 21 federal disaster declarations since 2000, most often for hurricanes.

  • 2026-01-23: Severe Winter Storm (Winter Storm)
  • 2024-09-29: Hurricane Helene (Hurricane)
  • 2024-09-26: Hurricane Helene (Tropical Storm)
  • 2024-08-05: Hurricane Debby (Tropical Storm)
  • 2023-08-31: Hurricane Idalia (Hurricane)
  • 2022-11-21: Hurricane Ian (Hurricane)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Aero Plantation Airport (NC21) is the nearest airport with scheduled flights listed in OpenStreetMap, 21 miles away.

  • Elgin 6 mi east, about 10 min by car
  • Great Falls 10 mi southwest, about 16 min by car
  • Catawba 11 mi northwest, about 18 min by car
  • Waxhaw 17 mi north, about 28 min by car
  • Mineral Springs 19 mi northeast, about 30 min by car
  • Rock Hill 20 mi northwest, about 32 min by car
  • Marvin 21 mi north, about 34 min by car
  • Chester 22 mi west, about 35 min by car
  • Fort Mill 23 mi north, about 36 min by car
  • Weddington 23 mi north, about 37 min by car

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.