This is a list of United States postage stamps featuring the State of Colorado or subjects associated with the state.. This list includes information about each stamp including the date and place the stamps were first issued. Stamps issued prior to July 1, 1971, were issued by the United States Post Office. Beginning on July 1, 1971, stamps were issued by the new United States Postal Service.

Stamps NameStampDenominationDatePlace1898 Frémont on Rocky Mountains 5-cent postage stamp5 centson a sheet of nine stampsJune 17, 1898Omaha, Nebraska1934 Mesa Verde National Park 4-cent postage stamp4 centsSeptember 25, 1934Mesa Verde National Park1940 Pony Express 80th Anniversary 3-cent postage stamp3 centsApril 3, 1940Saint Joseph, MissouriSacramento, California1944 Transcontinental Railroad 75th Anniversary 3-cent postage stamp3 centsMay 10, 1944Omaha, NebraskaOgden, UtahSan Francisco, California1951 Colorado 75th anniversary of statehood 3-cent postage stamp3 centsAugust 1, 1951Minturn, Colorado1976 Colorado state flag 13-cent postage stamp13 centsFebruary 23, 1976Philadelphia, Pennsylvania1977 Colorado statehood centennial 13-cent postage stamp13 centsMay 21, 1977Denver, Colorado1982 Colorado state bird and flower 20-cent postage stamp 20 centsApril 14, 1982Washington, D.C.2007 Bighorn Sheep 17-cent postage stampSee USPS and SNPM17 centsMay 21, 2007Washington, D.C.2007 Alpine Tundra 41-cent postage stampsSee USPSsheet of ten41-cent stampsAugust 8, 2007Rocky Mountain National Park2008 Colorado state flag and mountain 42-cent postage stampSee SNPM and USPS42 centsJune 14, 2008Washington, D.C.2021 Colorado Hairstreak Butterfly non-machineable surcharge stampSee USPSnon-machineable surcharge(initially $1.27)March 9, 2021Estes Park, Colorado2026 Colorado statehood sesquicentennial postage stampSee USPSforever stamp(initially 78 cents)January 24, 2026Denver, Colorado

See also

Bibliography of Colorado Geography of Colorado History of Colorado Index of Colorado-related articles List of Colorado-related lists List of Colorado state symbols Outline of Colorado Postage stamps Philately United States Post Office United States Postal Service

Notes

References

External links

State of Colorado United States Postal Service