January 1 | New Year’s Day | Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC), Thornton Arts & Culture Center, Thornton Active Adult Center, Alliance Center, Thornton Community Connections
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January 16 |
Martin Luther King, Jr. Day | Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC), Thornton Arts & Culture Center, Alliance Center,Thornton Community Connections |
February 20 | Presidents' Day | Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC), Thornton Arts & Culture Center, Alliance Center, Thornton Community Connections |
May 29 |
Memorial Day | Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC), Thornton Arts & Culture Center, Active Adult Center, Alliance Center, Thornton Community Connections |
June 19
| Juneteenth
| Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC), Thornton Arts & Culture Center, Active Adult Center, Active Adult Wing at Trail Winds Recreation Center, Alliance Center, Thornton Community Connections
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July 4 |
Independence Day |
Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC), Thornton Arts & Culture Center, Active Adult Center, Alliance Center, Thornton Community Connections |
September 4 |
Labor Day |
Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC),
Margaret W. Carpenter Recreation Center, Thornton Arts & Culture Center, Active Adult Center, Alliance Center, Thornton Community Connections |
November 10 |
Veterans Day | Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC), Thornton Arts & Culture Center, Alliance Center, Thornton Community Connections |
November 23 |
Thanksgiving Day | Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC),
Margaret W. Carpenter Recreation Center, Thornton Arts & Culture Center, Active Adult Center, Alliance Center, Thornton Community Connections |
November 24 |
Friday following Thanksgiving | Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC), Thornton Arts & Culture Center, Active Adult Center, Alliance Center, Thornton Community Connections |
December 25
| Christmas Day | Thornton City Hall, Thornton Municipal Court, Infrastructure Maintenance Center (IMC),
Margaret W. Carpenter Recreation Center, Thornton Arts & Culture Center, Active Adult Center, Alliance Center, Thornton Community Connections |