Australia

• Newtown, New South Wales
• Newtown, Queensland (Ipswich)
• Newtown, Queensland (Toowoomba)
• Newtown, Victoria, a suburb of Geelong
• Newtown, Victoria (Golden Plains Shire), a locality near Ballarat

Canada

• Newtown, Newfoundland and Labrador

India

• New Town, Kolkata

Ireland

• Newtown, Ballymore, a townland in the civil parish of Ballymore, barony of Rathconrath, County Westmeath
• Newtown, Ballymurreen, County Tipperary, a townland in North Tipperary
• Newtown, County Cork, a census town
• Newtown, County Dublin
• Newtown, County Laois
• Newtown, County Leitrim
• Newtown, County Meath, a civil parish of Ireland
• Newtown, County Tipperary, a settlement in the barony of Owney and Arra
• Newtown, County Westmeath, several townlands in County Westmeath
• Newtown, County Westmeath (civil parish), a civil parish in the barony of Moycashel
• Newtown, Delvin, a townland in the civil parish of Delvin, County Westmeath
• Newtown, Ormond Lower County Tipperary, a townland in the barony of Ormond Lower
• Newtown (Guest), County Tipperary, a townland in the barony of Ormond Lower
• Newtown (Hodgins), County Tipperary, a townland in the barony of Ormond Lower
• Newtown, Iffa and Offa East, a townland in County Tipperary
• Newtown, Ikerrin, two townlands in County Tipperary
• Newtown, Kilcumreragh, a townland in Kilcumreragh civil parish, barony of Kilcoursey, County Offaly
• Newtown, Kilnamanagh Lower, a townland in County Tipperary
• Newtown, Kilnamanagh Upper, two townlands in County Tipperary
• Newtown (Kinawley), a townland in Kinawley Civil parish, County Cavan
• Newtown, Ormond Upper, a townland in County Tipperary
• Newtown, Owney and Arra, two townlands in County Tipperary
• Newtown, Templeport, a townland in Templeport civil parish, County Cavan

Isle of Man

• Newtown, Isle of Man

New Zealand

• Newtown, New Zealand, a suburb of Wellington
• Newtown (New Zealand electorate), a former parliamentary electorate, 1902–1908

South Africa

• Newtown, Johannesburg

United Kingdom

England

• Newtown, Birmingham
• Newtown, Chester
• Newtown, Cornwall
• Newtown, Holme St Cuthbert, Cumbria
• Newtown, Irthington, Cumbria
• Newtown, Derbyshire
• Newtown, Dorset, a district of Poole
• Newtown, Exeter
• Newtown, Hampshire
• Newtown, Herefordshire, a village near Ivington
• Newtown, Isle of Wight
• Newtown, Kent, an area of Ashford, alternatively New Town as shown on OS mapping.
• Newtown, Pendlebury, Greater Manchester, the location of Bridgewater Mill and Newtown Mill; see List of mills in Salford
• Newtown, Reading
• Newtown, Shropshire, a village in Shropshire
• Newtown, Staffordshire
• Newtown, Stockton-on-Tees
• Newtown, West Tisbury, Wiltshire
• Newtown, Worcestershire, a UK location
• Newtown-in-St Martin, Cornwall
• Newtown Linford, Leicestershire
• Newtown Unthank, Leicestershire

Northern Ireland

• Newtown, County Down, a townland in Kilbroney, County Down
• Newtown, County Antrim, a townland in Ardclinis
• Newtown, County Armagh, a townland in County Armagh
• Newtown, County Fermanagh, a townland in County Fermanagh
• Newtown Upper, a townland in Kilbroney, County Down

Scotland

• Newtown St Boswells, in the Scottish Borders

Wales

• Newtown, Cardiff
• Newtown, Powys

United States

• Newtown, California
  • Newtown, El Dorado County, California
  • Newtown, Mariposa County, California
  • Newtown, Nevada County, California
  • Newtown, Shasta County, California, a place in Shasta County, California
• Newtown, Connecticut, incorporated Town in Fairfield County
  • Site of the Sandy Hook Elementary School shooting in 2012, the fourth deadliest mass shooting in American history.
• Newtown (borough), Connecticut, incorporated Borough in Fairfield County
• Newtown (Palatka), a neighborhood of Palatka, Florida
• Newtown (Sarasota, Florida)
• Newtown, Illinois
• Newtown, Indiana
• Newtowne, an old name for Cambridge, Massachusetts, and its vicinity
• Newtown, an old name for Newton, Massachusetts
• Newtown, Missouri
• Newtown, New Jersey
• Newtown, an old name for the neighborhood of Elmhurst, Queens, New York
• Newtown, Ohio
• Newtown, Pennsylvania
  • Newtown, Bucks County, Pennsylvania
  • Newtown, Schuylkill County, Pennsylvania
  • Newtown Township, Bucks County, Pennsylvania
  • Newtown Township, Delaware County, Pennsylvania
• Newtown, South Carolina
• Newtown, Virginia
  • Newtown, Albemarle County, Virginia
  • Newtown, Greene County, Virginia
  • Newtown, King and Queen County, Virginia
  • Newtown, Lancaster County, Virginia
  • Newtown, Virginia Beach, Virginia, in Princess Anne County, Virginia
  • Stephens City, Virginia, which was formerly known as Newtown